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MS4 TMDL Annual Report FY 17-18 • --. .,9 k E G 0' .‘ / 2017 - 2018 NPDES MS4 Annual Report , .,,,, ,,, ; . ,-. - - ' - ' , 4,.__,_ *.,„..•:1 1-'1.1 1, 4 A' ,. r ,, .: , , _.,..„, • .,,,,, , , . . „ • _ ,r , . 'r` i ij, . , 1... .,,,, ;, 6 . i 4,yip',. i' ofrie.", ; ttlie ,.. ' i'',.. riA..".t. 11 V : ' ', ,11.•. ,,e ri4,41 ,,,,e. ,I / 1.A PI i: , 3 ; ./.. ,; .., il °,C,:',";...j.*-.,-;1 ''.*.' .1 4/ i y( i t r d1 .1 r• � ,,( ''' _4 -= •-,.-: .a•-.r. _ .i•fi'` ` `alK • ""� ,� .. Photo Credit: Oswego Creek by Maina Donaldson,2018 October 31, 2018 City of Lake Oswego, Oregon National Pollutant Discharge Elimination System Municipal Separate Storm Sewer System Discharge Permit Annual Report Covering July 1, 2017 to June 30, 2018 Prepared for the Oregon Department of Environmental Quality October 31, 2018 1E,401iOti1.�` N.,Vr� tt OREGO� CITY OF LAKE OSWEGO r:. NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MUNICIPAL STORMWATER SYSTEM ANNUAL REPORT JULY 1, 2017 -JUNE 30, 2018 I,the undersigned, hereby submit this National Pollutant Discharge Elimination System (NPDES)Municipal Storm Water System Annual Report in accordance with NPDES Permit Number 101348. I certify, under penalty of law,that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to ensure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person,or persons,who manage the system, or those persons directly responsible for gathering the information,the information is,to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information including the possibility of fine and imprisonment for known violations. 7-eA3e4-14) 1/07,;=i F Scott Lazenby, City Manager Date City of Lake Oswego TABLE OF CONTENTS 1.0 Introduction 1 1.1 NPDES MS4 Permit Background 1 1.2 Document Organization 1 2.0 Adaptive Management Process Implementation 3 2.1 Adaptive Management Program 3 2.2 SWMP Update for FY18-19 3 3.0 Stormwater Program Expenditures 4 4.0 Monitoring Data 4 4.1 Summary of Implementation of the Stormwater Monitoring Plan 4 4.2 Stormwater Monitoring Plan Updates and Modifications 6 4.3 Summary of Monitoring Data 7 5.0 Overview of Planning and Land Use Changes, UGB Expansions and New Development Activities 8 5.1 Stormwater Planning, Land Use Changes, and UGB Expansions 8 5.2 Summary of Development Activities in the UGB 8 6.0 Additional Activities 13 Appendix A Lake Oswego SWMP Implementation Status APP 1 Appendix B Lake Oswego Monitoring Data APP 13 Appendix C Public Outreach APP 23 Appendix C.1 Regional Coalition for Clean Rivers and Streams APP 24 Appendix C.2 City Events,Articles, and Social Media Posts APP 37 Appendix C.3 KOIN-TV Outreach APP 40 Appendix C.4 Tualatin Basin Public Awareness Committee (TBPAC) APP 41 LIST OF TABLES Table 1. Summary of the NPDES MS4 Annual Report Requirements 2 Table 2. Funds Expended for FY17-18 and Forecasted for FY18-19 4 Table 3. Density changes in FY17-18 9 Table 4. Impervious Area Treated by Private Stormwater Facilities, FY17-18 12 Table 5. Impervious Area Treated by Public Stormwater Facilities, FY17-18 12 Table B-1 Nettle Creek abv Tryon Creek, Instream Monitoring Results, FY17-18 APP 15 Table B-2 Lost Dog Creek at Lake Front Rd, Instream Monitoring Results, F17-18 APP 16 Table B-3 Springbrook Creek at Iron Mountain Blvd, Instream Monitoring Results, FY17-18 APP 17 Lake Oswego NPDES MS4 Annual Report FY 17-18 Page i Table B-4 Boones Ferry Creek at Bryant Rd, Instream Monitoring Results, FY17-18 APP 18 Table B-5 Ball Creek bel Kruse Way, Instream Monitoring Results, FY17-18 APP 19 Table B-6 Carter Creek abv Bangy Rd, Instream Monitoring Results, FY17-18 APP 20 Table B-7 Wet Weather Results at Reese Rd and at South Shore Blvd, March 8, 2018 APP 21 Table B-8 Wet Weather Results at Reese Rd and at South Shore Blvd, November 30, 2017 APP 22 LIST OF FIGURES Figure 1 Zoning Map of Lake Oswego for FY17-18 10 Figure 2 Location of Annexations in Lake Oswego,July 1, 2017 to June 30, 2018 10 Figure 3 Impervious surface in Lake Oswego 11 Lake Oswego NPDES MS4 Annual Report FY 17-18 Page ii 1.0 INTRODUCTION 1.1 NPDES MS4 Permit Background The Oregon Department of Environmental Quality (DEQ) regulates stormwater runoff from the City of Lake Oswego through the National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) Permit No. 101348, issued to Clackamas County and its co-permittees. Clackamas County co-permittees include the cities of Lake Oswego, Milwaukie, Gladstone, West Linn, Oregon City, Wilsonville, Happy Valley,Johnson City, and Rivergrove; the Oak Lodge Sanitary District and Clackamas County.The population range of the entities in the group is from 500 to 74,294 with a median group population of 20,550. Lake Oswego's population as of June 30, 2018 was approximately 39,196. The City's current permit was issued March 16, 2012 and expired on March 1, 2017. It is currently on administrative extension. Each co-permittee of the Clackamas County group is required to submit an annual report summarizing actions taken to implement their individual Stormwater Management Plans (SWMPs), submitted and approved by DEQ in 2012, and comply with the permit. This report documents actions taken by the City of Lake Oswego (City) between July 1, 2017 and June 30, 2018. It and past annual reports, related support documents, and links to DEQ permit and water quality documents are maintained on the City website at: http://www.ci.oswego.or.us/publicworks/permits- plans-and-reports. 1.2 Document Organization Each section of this report corresponds to a specific requirement in Schedule B(5). Table 1 outlines the report's organization with respect to the reporting requirements in Schedule B(5) of the MS4 permit. In addition, this report summarizes efforts and activities associated with individual Best Management Practices (BMPs)from the City's 2012 SWMP as listed in Appendix A. Analytical results from the required water quality monitoring programs (instream and stormwater) can be found in Appendix B. A summary of public education efforts through City efforts and annual reports summarizing activities of regional stormwater and water quality groups, of which the City is a member, are provided in Appendix C. Normally, the annual report associated with the TMDL Implementation Plan (Plan) is included in Appendix D. This year, however, DEQ requested that the City complete a survey for a Willamette River Basin-wide review and update its Plan one year ahead of schedule. It is expected that the City will resume incorporating the Plan's annual reports next year. Lake Oswego NPDES MS4 Annual Report FY17-18 Page 1 Table 1 Summary of the NPDES MS4 Annual Report Requirements Schedule B.5 Reporting Requirement Document Location a) Implementation status of SWMP elements including Appendix A progress meeting measurable goals. b) Status of any public education effectiveness evaluation The 2015 Public Effectiveness conducted during the reporting year and a summary of Assessment is available at how results were used in adaptive management. http://www.ci.oswego.or.us/ publicworks/permits-plans- and-reports c) Summary of proposed BMPs as part of the adaptive Section 2.0 management process implemented during FY17-18. d) Proposed SWMP changes to reduce TMDL pollutants to Section 2.0 the MEP. e) Summary of stormwater expenditures and funding Section 3.0 sources in FY17-18 and those anticipated in FY18-19. f) Summary of water quality monitoring program analyses' Section 4.0 and Appendix B and any evaluations completed by the City. g) Proposed modifications to the monitoring plan to ensure Section 4.0 that adequate data are collected to conduct assessments. h) Summary of the number and type of inspections, Appendix A and Appendix C investigations, and any subsequent enforcement actions; and a summary of the public education effortsb. i) An overview, as related to MS4 discharges, describing Section 5.0 land use changes, UGB expansions, land annexations, and new development activities including the number of development permits issued and an estimate of new and replaced impervious surface. j) An overview, as related to MS4 discharges, describing Section 5.0 and Appendix A concept planning or other activities in preparation of UGB expansions or land annexations anticipated for FY19-20. k) Additional efforts conducted by the City. Section 6.0 and Appendix A. Assessments and Evaluations required by the permit in 2015 are available at http://www.ci.oswego.or.us/ publicworks/permits-Dlans- and-reports 'Appendix B contains the raw data collected for each sampling event including field parameters. bEnforcement actions,inspections,and a public education summary and are reported in Appendix A. Specific information regarding public education efforts is reported in Appendix C. Lake Oswego NPDES MS4 Annual Report FY17-18 Page 2 2.0 ADAPTIVE MANAGEMENT PROCESS IMPLEMENTATION 2.1 Adaptive Management Program With the 2012 renewal of its MS4 permit,the City was required to document their adaptive management approach to annually assess and modify,as necessary,existing SWMP components and propose new ones. The City submitted their approach to DEQ on November 1, 2012. Historically, the City has implemented adaptive management principles to refine implementation methods and data collection activities in conjunction with their respective SWMP requirements and BMPs. More significant modifications to SWMP activities occur every five years as part of the permit renewal process.The City's current approach for adaptive management is consistent with its historical approach. As the City completes its annual NPDES MS4 annual report, it reviews the SWMP implementation to determine the effectiveness of its measurable goals and tracking measures. The City collects data and feedback from staff to gauge whether implementation is effective or whether there are improvements or efficiencies to be gained by changing the strategy. Suggested adjustments to BMP implementation include consideration of available resources (financial and labor), the need for capital expenditures, and the effects of changing a BMP. Specifically, City staff evaluates whether: 1. Measurable goals for the BMP were attained and, if not,what prevented it and how they can be reached in the future; 2. Milestones for multi-year BMPs were met; 3. Refinements in BMPs will create efficiencies or improve effectiveness of the BMP; and 4. Staff and other resources are available. During the permit renewal process and subsequent SWMP update, additional factors are considered as part of the City's overall adaptive management process. These factors include: 1. Whether technology or research have created new and more effective BMPs; 2. If current measurable goals and tracking measures are still applicable to the BMP; and 3. The status of available resources for implementing changes to the BMPs. The City does not propose any adaptive management for the SWMP in FY18-19. 2.2 SWMP Update for FY18-19 FY17-18 is the sixth year that the City has used the 2012 SWMP to comply with its MS4 permit. The City's 2012 SWMP provided additional BMPs not included in the previous versions of the City's SWMP including: 1. Screening of Existing and New Industrial Facilities, 2. Conducting Inspections of High Pollutant Source Facilities, 3. Updating the City's Integrated Pest Management Practices, and 4. Reducing the Impact of Stormwater Runoff from Municipal Facilities Additionally,the following significant modifications and changes to implementation activities were made to existing BMPs for the 2012 permit: 1. Implement the Illicit Discharges Detection and Elimination Program 2. Track, Inspect, and Maintain Stormwater Facilities 3. Review and Update Municipal Code and Design Standards Related to Stormwater Management Lake Oswego NPDES MS4 Annual Report FY17-18 Page 3 For the FY17-18 permit year, an updated sampling and analysis plan was submitted and subsequently approved by DEQ in February 2017. The primary change in the plan removed one instream water quality monitoring site and increased wet weather monitoring from 2 events per year to 3 events per year. There are no SWMP changes requested by the City for FY18-19. 3.0 STORM WATER PROGRAM EXPENDITURES Stormwater program expenditures are funded from monthly stormwater fees. The monthly stormwater fee for single family/duplex residential customers was $14.40 in FY1718 and will be $15.41 in FY18-19. System development charges (SDCs) are collected when a building permit is issued for new construction or when an existing development connects to a public stormwater line. For FY17-18, SDCs were$151 per 3,030 sq ft of impervious surface in FY17-18 and increased to $157 per 3,030 sq ft for FY18-19. Revenue collected during FY17-18 was $3.3M. An additional $1.3M was collected as part of a bond. Funds expended for stormwater management were $4.6M in FY17-18. The forecasted expenditure for FY18-19 is approximately$5.1M with an additional $398K set aside as a contingency. Most of the increase is for capital projects which include retrofits and new conveyance, detention, and water quality facilities (see Section 5.2). These funds do not include City expenditures for related programs affecting stormwater which are managed by the City's Planning or Parks Departments, i.e.,the Backyard Habitat Program and the Habitat Enhancement Program. Such programs include, but are not exclusively targeted at, areas adjacent to streams. Table 2 Funds Expended for FY17-18 and Forecasted for FY18-19 FY17-18 Actual* FY18-19 Budgeted Program Operations $2,302,461 $1,463,000 Surface Water Maintenance $ 881,585 $ 952,000 Capital Outlay $1,414,601 $2,683,000 Contingency $ 328,950 Total $4,598,647 $5,426,950 *These numbers are not audited 4.0 MONITORING DATA 4.1 Summary of Implementation of the Stormwater Monitoring Plan Lake Oswego NPDES MS4 Annual Report FY17-18 Page 4 The MS4 permit requires a water quality monitoring program that includes program monitoring and environmental monitoring. Program monitoring includes tracking and assessing program activities through performance indicators or metrics described in the SWMP (see Appendix A). Environmental monitoring includes visual monitoring and the collection and analysis of water samples.Visual monitoring is composed of dry weather outfall screening and illicit discharge investigations as described in the City's SWMP under the Illicit Discharge Detection and Elimination Program BMP with results reported in Appendix A. Water samples collected as part of the ambient monthly and wet weather requirements follow protocols from the Sampling and Analysis Plan with results of the analyses provided in Appendix B. The City responds to complaints regarding illicit discharges within its s+?+ jurisdiction. In FY17-18, the City updated its Spill Response Plan to • —$ incorporate changes required by its new UIC permit and to document • •- "` the coordination among the departments in the event of an illicit discharge or accident. There were 35 spills and illicit discharges in ;V . FY17-18 of which 6 involved SSOs (see Table) and 15 were due to r s motor vehicle accidents. The watershed most affected by the 1A. incidents was Oswego Lake (46%) with Springbrook affected by 20% of the incidents and the Tualatin watershed affected by 17%. A partnership between the City and the City of Portland on implementing a Fats, Oils, and Grease (FOG) program should help reduce SSOs and bacteria levels in the stormwater system and streams. There were 387 Erosion and Sediment Control (ESC) Permits issued in FY17-18 as part of the City's ESC program. The City inspects each site before construction begins,when the footings are being poured,and at the end before the project is deemed complete. There were 45 sites that required more than 3 inspections and 1 site that was issued a citation in response to continued violation of its permit. Education of staff, contractors, and the public is an important piece of the City's effort to improve water quality. Staff attended various conferences, workshops, seminars, and webinars to improve their technical expertise including 27 staff who attended confined space training and 14 staff who attended a webinar on stormwater facility maintenance. Contractors were required to maintain ODA certifications and staff tasked with ESC inspections continue to maintain their CESCL certifications. -w- - - . - -_• The City's public affairs staff continues to promote educational RrvER • events for the public in addition to using social media, a STARTS - .�,-... calendar, and newsletters (online and print) to provide information regarding stormwater issues. The City is also a j_ jw member of several regional groups that have a stormwater _w focus: Regional Coalition of Clean Rivers and Stream, Tualatin Basin Public Awareness Committee, KOIN-TV, and the Clean CiN CI AU Rivers Coalition. Messages included car maintenance, minimization of pesticides and fertilizers, proper RV and pet waste disposal, naturescaping,electronics recycling,and proper leaf disposal. Staff completed 30m residential water audits which include discussions on the impacts of overwatering, improper plant selection,and excessive fertilizer on streams. In addition, the City works with the local watershed councils and groups wishing to complete service hours by marking catch basins. In FY17-18, groups marked 198 catch basins with the "Drains to Stream" message. Lake Oswego NPDES MS4 Annual Report FY17-18 Page 5 Staff continued to implement the stormwater management manual (SWMM) by conditioning development applications and reviewing building permit applications for adherence to the SWMM. Additional information regarding development is provided in Section 5. The City continued implementation of its monitoring requirements with monthly and quarterly sampling occurring at 6 sites and stormwater sampling at 2 sites. Additional information regarding the monitoring program is provided in Section 4.3 The City inspected and maintained 1,443 catch basins and 33 public stormwater facilities. Staff swept 4,400 curb miles in FY17-18 resulting in removal of 1,400 cu yds of debris (0.32 cu yd/curb mile) which was slightly less than the previous year(0.34 cu yd/curb mile). There were 1,466 cu yd of leaves removed from the City in FY17-18 and the City offered 2 drop-off boxes to neighborhoods who requested it. Severe weather resulted in approximately 11,200 gallons of applied de-icer to streets and public facility sidewalks. The City will continue to implement its SWMP to the extent that funding and staff allows. It is expected that the FOG program partnership with the City will decrease bacteria levels. In addition,the City should start seeing results from the onsite stormwater management required by the City's SWMM in the form of higher baseflows and cooler stream temperatures due to the required onsite stormwater management. 4.2 Stormwater Monitoring Plan Updates and Modifications As required by the MS4 permit, the City updated and submitted their SWMP with DEQ approval of the plan received in October 2012. The plan was updated again in February 2014 and received DEQ approval as described in the MS4 FY13-14 Report. On December 10, 2015,the City requested two modifications to the SWMP in regard to the monitoring program: 1) Move from flow-weighted composite sampling to time-weighted composite sampling for wet weather events, and 2) Add quarterly sampling for total and dissolved organic carbon,chloride,calcium,magnesium, potassium,sodium,and sulfate to provide a more precise bioavailability assessment of copper using the biotic ligand model. These two modifications were accepted by DEQ and incorporated into the sampling procedures for FY16-17. Sampling and Analysis Plan modifications were submitted in February 2017 and subsequently accepted by DEQ. Changes included: a. The mercury, methylmercury, and pesticide monitoring requirements were completed FY13-14 and were removed from the proposed monitoring plan. Results were reported to DEQ in the FY13-14 MS4/TMDL Annual Report. b. The instream monitoring site identified as Boones Ferry Creek behind 5189 Rosewood was removed from the list of instream monitoring sites. The site is upstream of a detention pond and another instream monitoring site (Boones Ferry Creek between Lakeview Blvd and Bryant Road) and was initially chosen to determine if the detention pond located between the two sites was providing sufficient water quality treatment. A pollutant load reduction evaluation, submitted by the City to the DEQ in March 2016, indicated that the detention pond was providing adequate water quality treatment. The downstream monitoring site (Boones Ferry Creek between Lakeview Blvd and Bryant Road) remains on the list of instream monitoring sites and will be used to monitor the water quality of Boones Ferry Creek prior to discharge to Oswego Lake. c. Stormwater-wet weather monitoring was increased from 2 events to 3 events per year to provide information on the effect of the Boones Ferry Rd reconstruction and Lost Dog Creek hydromodification. Lake Oswego NPDES MS4 Annual Report FY17-18 Page 6 d. Analytes required to compute copper bioavailability using the biotic ligand model were added to the list of water quality parameters and are being collected quarterly at all instream monitoring sites. The analytes include alkalinity, cations, anions, total dissolved carbon, and total organic carbon added to the list of instream monitoring parameters. The additional data, collected 4 times each year, will further assist in determining the bioavailability of copper using the biotic ligand model. Alkalinity will also be used to evaluate the effects of stormwater and surface water mixing when comparing ammonia values to the criteria listed in the Oregon Toxics Standards Rule (OAR 340-41-033,Table 20). 4.3 Summary of Monitoring Data The City's 2012 permit prescribed monitoring requirements that •• took effect October 1, 2012. In accordance with the requirements • of the 2012 Stormwater Monitoring Plan and its subsequent modifications listed in Section 4.1, Lake Oswego has conducted I • instream ambient monitoring, mercury monitoring, macroinvertebrate monitoring, and pesticide monitoring. • . The City conducts ambient monitoring at six locations using grab sampling methods.A total of 12 sampling events are required by the MS4 permit with 50% during the wet weather season and 50% during the dry weather season.To further remove bias, staff samples on the 15th of every month as their schedule allows. The analytical results of these sampling efforts are included in Appendix B. Continuous records at two of these sites were not available for much of FY17-18 due to equipment malfunction. The City upgraded one of the sites in April 2018(Springbrook at Iron Mtn Blvd)and will have the other site upgraded in October 2018 (Lost Dog at Lake Front Rd). The MS4 permit requires the City to conduct 3 sampling events during the wet weather season (October to April). Using time-weighted sampling,the City collects samples during business hours at two locations: 1) Reese Road is located at the intersection of Reese Road and Lake Grove Avenue and is representative of a fully-piped urban catchment; and 2) South Shore is located downstream of South Shore Rd at the outfall for Lost Dog Creek and is representative of a mixed piped and open channel urban catchment. In FY17-18,the City completed its wet weather sampling in November and March with results reported in Appendix B. Staff collected 3 samples from each site in November and March to create a composite sample. As expected, the initial samples were high in bacteria however subsequent samples showed a reduction. The duplicate samples collected at South Shore showed that the collected samples were well- mixed and replicable for both events. The blank samples collected at Reese Rd showed trace amounts of metals (below the method detection limit) in both November and March. Lake Oswego NPDES MS4 Annual Report FY17-18 Page 7 5.0 OVERVIEW OF PLANNING AND LAND USE CHANGES, UGB EXPANSIONS AND NEW DEVELOPMENT ACTIVITIES 5.1 Stormwater Planning, Land Use Changes, and UGB Expansions The City has very little undeveloped land and new development primarily occurs as infill i.e., partitions or redevelopment. In FY17-18, the City completed a consistency review between the comprehensive plan map and the zoning map (see Table 3). The consistency review resulted in some industrial park property to commercial (no net increase in impervious area allowed), some Public Function property to residential (decrease in potential impervious area), and a couple areas which were originally zoned residential but changed to natural areas (decrease in potential impervious area). The remaining changes were various residential changes. Overall, the consistency review between the Comprehensive Plan Map and the Zoning Map (see Figure 1) resulted in a decrease in allowed impervious area throughout the City. The City is located entirely within the Urban Growth Boundary (UGB) and expansion occurs in unincorporated areas of the City Urban Services Boundary located within the UGB when requested by the property owner. Annexations are driven in large part by the need to provide wastewater service to parcels with existing homes and failing septic systems or to parcels that are being redeveloped or partitioned. During FY17-18, the City considered and approved 9 annexation applications totaling 4.0 acres with half of the acreage (2.18 acres) in the Oswego Lake watershed (see Figure 2). Three of the annexations were due to septic tank failure. After annexation, 4 property owners submitted development applications or indicated that they would be developing the parcel. In addition to the 3 annexed properties, 17 properties within the City converted from septic systems to the public wastewater system. Bancroft financing was completed for 4 of the conversions —the public wastewater line was extended in 3 of those financed conversions. 5.2 Summary of Development Activities in the UGB Current development activities mainly involve infill and redevelopment of existing properties, i.e., single- family homes. The City adopted the stormwater municipal code and updated the Stormwater Management Manual, and the Community Development Code in FY15-16; the updates required developers to use onsite stormwater management. During FY17-18, staff reviewed 88 land-use applications and required stormwater management for the development of 65 properties; the remaining 23 applications did not meet the stormwater threshold of 1,000 sq ft of new impervious surface or 3,000 sq ft of new plus re-developed impervious surface.' The City issued 106 building permits for projects requiring stormwater management. 'Staff supported by the Surface Water Utility also perform floodplain review and permitting. Lake Oswego NPDES MS4 Annual Report FY17-18 Page 8 Table 3 Density changes in FY17-18 Original New Ord# Land Use#PROJECT DESCRIPTION Address Acres Change Density* Density* 2740 LU 17-0009 Zoning Map Amendment 6150 Kenny Street&ROW 0.61 R-7.5 to R-10 4 3 2741 LU 17-0010 Zoning Map Amendment 5711 McEwan Road & ROW 0.22 R-7.5 to R-10 1 1 2742 LU 17-0011 Zoning Map Amendment 6135 McEwan Road &ROW 1.27 R-7.5 to R-10 7 6 2743 LU 17-0012 Zoning Map Amendment 6397 McEwan Road &ROW 0.23 R-7.5 to R-10 1 1 2744 LU 17-0013 Zoning Map Amendment 18485 Don lee Way& ROW 0.23 R-7.5 to R-10 1 1 2745 LU 17-0014 Zoning Map Amendment 18521 Donlee Way& ROW 0.24 R-7.5 to R-10 1 1 Zoning Map Amendment -Lake Oswego Corp. R-7.5 to Public 2746 LU 17-0015 Power Station 661 S.State Street& ROW 0.45 &Natural Area 3 0 2750 LU 17-0022 Zoning Map Amendment 10 Touchstone& ROW 0.3 R-3 to R-7.5 4 2 Map correction &Uplands R-10 Overlay District 2767 LU 17-0024 Designation 1774 Ridgecrest Drive 0.63 R-15 to R-10 2 3 Align Comprehensive 17437 Boones Ferry Road & Industrial Park Min 15% Min 15% 2765 LU 17-0063 Plan Map&Zoning Map ROW 1.54 to Gen Comm Pervious Pervious Align Comprehensive Plan 17449 Boones Ferry Road & Industrial Park Min 15% Min 15% 2765 LU 17-0063 Map&Zoning Map ROW 1.3 to Gen Comm Pervious Pervious Align Comprehensive Plan Industrial Park Min 15% Min 15% 2765 LU 17-0063 Map&Zoning Map 17711 Jean Way and ROW 2.47 to Gen Comm Pervious Pervious Align Comprehensive Plan Industrial Park Min 15% Min 15% 2765 LU 17-0063 Map&Zoning Map 17704 Jean Way and ROW 1.32 to Gen Comm Pervious Pervious Align Comprehensive Plan Industrial Park Min 15% Min 15% 2765 LU 17-0063 Map&Zoning Map 17720 Jean Way and ROW 0.58 to Gen Comm Pervious Pervious Align Comprehensive Plan Industrial Park Min 15% Min 15% 2765 LU 17-0063 Map&Zoning Map 5895 Jean Road and ROW 0.63 to Gen Comm Pervious Pervious Align Comprehensive Plan Industrial Park Min 15% Min 15% 2765 LU 17-0063 Map&Zoning Map No Site Address and ROW 0.34 to Gen Comm Pervious Pervious R-5 to Align Comprehensive Plan 17620 Pilkington Road & Neighborhood 2764 LU 17-0063 Map&Zoning Map ROW 0.29 Commercial 3 4 16780 and 16780-A Bryant R-7.5 to Align Comprehensive Plan Road and 4471,4473,4475, Neighborhood 2763 LU 17-0063 Map&Zoning Map 4477 Lakeview Blvd.&ROW 0.37 Commercial 2 5 Align Comprehensive Plan Various properties in Forest 2771 LU 17-0078 Map&Zoning Map Highlands 189.8 Various 1118 655 Align Comprehensive Plan 1061 Sunningdale Road & R-10 to Public& 2781 LU 17-0079 Map&Zoning Map ROW(Stafford Grove Park) 0.19 Natural Area 1 0 Align Comprehensive Plan Gen Comm to Min 15% Min 15% 2782 LU 17-0079 Map&Zoning Map 501 4th Street(Post Office) 0.54 East End Comm Pervious Pervious Total 203.5 1148 680 Lake Oswego NPDES MS4 Annual Report FY17-18 Page 9 NC R.3 Ra R-0 RA R-0 PNA NV NUR p PNA R'' NC R-7.6 R3 PAD R.1x P. PNA RL PNA Rtl R1 PRA Rd R-10 PNP R-0 R-tp R15 R. R.0 P. PRA PM R R.15 9-19 R T�S PNA -7 PF RA rta -0 P. PRARi3 P-10 K PF PNA RNA PNA ,15 PR A R].3 re.10 R-,0 P1P ,,,, R1 PNA a10 RC R3 Ras qya PNA P. R PS P. Rd PF _ Rd R. R FNA fl-t0 R-]PRA F OCIRV PNA RRR RV RNA Pr w I NC Vrifia OC CC A PRA RAS R.P PP .°R. PRA ��PRA A m R TS MP. PRA PV8 R.i.S CORD p. oH. VW �-�5 R15 R13 R]5 P oG RS Rl3 PNA Pr PNA Ke R 1.3 R.T.NCM-o RA L8 PNA R-T 5 -0 P-0 89° R-]5 ft-i,9 QS� R-15 A VI P-10 R-t0 dG PF PNA FV5 P PRA R-0 �R Rs -0 P. ,, RTS wL MN Ri.. R.1 rtC PNA Pt9RP-PNSA R L R�QC P- R.10 PF PSaNc R-]5 R. 0 PNA F. P. PF PNA R.75 R.aS PNA PNA NS PP PNA PNA P 15 R. P-T5 PNA PP PNA R 1! IFR a PxA R1 City of Lake Oswego P'o R- PRA R , Zoning FY 2017-18 i 0 0.25 0.5 0.75 1 Figure 1 Zoning Map of Lake Oswego for FY17-18 City Of Lake Oswego 1 Annexations FY 2017-18 ARRna6OM FY 2017.18 Figure 2 Location of Annexations in Lake Oswego,July 1, 2017 to June 30, 2018. Lake Oswego NPDES MS4 Annual Report FY17-18 Page 10 The City updated its impervious surface map with an additional 5 acres added for FY17-18 (see Figure 3). The stormwater system receives runoff from 2,279 acres (3.6 sq miles) of impervious area within the City Limits. Within the Urban Services Boundary,the impervious area increased to 2,567 acres (4 sq mi.). f ImpeNloun 6urlecasw Min Like Oswego Cry LlrtnM } �7l's' -ImpervIoan 6u.leceswl�ln Urban Services Aree . s. i J]ul�n Services6atlntlary w .y� _f•��"'s` } f r '_._...__._. E.,Lake Oswego Boundary /Lill "_'a11 � 1..e I- &Jam/' 13 .�5: i I. .. Park or OPenSpace tik - 99 :.-v.,1,::,447-*R7tvt t-,‘... ii -V ' ,..—tail a�.,yi 1- `ler ,I �� jir>.. V y'M ,fie R`ya / . 17..;Fir.itic.:,-;, :_. !, - _ • 4, vet .. e4P • 's ' r ' .3iptic. 'VW' :-lik•—' ,03-• 14:W4,-, s''' 1 ; lq',..;IL•ts=,ZAZEL-5X7=' - a;:wfrt4,ft_-: . t! - .47 i:14 'P.,, .. .,. ' • :pr, .,„uzz i. , 1,,,,,r ' : <. .. : • .r Ice., City of Lake Oswego _ :a;= . ':'. ' _ [ Impervious Surfaces I vi 0 0.25 0.5 0.75 1 i, /files Figure 3 Impervious surface in Lake Oswego Construction plan reviews were used to estimate the amount of impervious area that each type of stormwater facility is treating throughout the City. As shown in Table 4, most of the development was in Oswego Lake (38%) and Springbrook Creek (30%) with private treatment occurring primarily through infiltration galleries and trenches at 44% and 82%, respectively. These same facility types were the clear favorite of developers for projects throughout the City; they were used to treat 53.5% of the impervious area. Very little porous pavement was installed (0.07%) with permeable pavers and infiltration planters rounding out the three least favorite private facilities of developers in the City. Two of the primary goals of green infrastructure is to: 1) reduce stream erosion by reducing stormwater velocities and 2) reduce stormwater volume through infiltration. While only 22% of the impervious area is being treated by green infrastructure,the amount treated by infiltration increases to 93%when adding dry wells and infiltration galleries. By utilizing green infrastructure and infiltration facilities, streams within the City's jurisdiction should see improved summer baseflow and less erosion in its streams. If summer baseflows improve as expected then the City should see decreased summer stream temperatures and potentially improved cold-water refugia for its streams in the long-term. There were only 3 public stormwater facilities built in FY17-18 through private development(see Table 5) and,while there were capital projects occurring in the City,there were no public facilities built by the end Lake Oswego NPDES MS4 Annual Report FY17-18 Page 11 of the fiscal year. Developers constructed bioswales to treat stormwater from 0.05 acres of impervious surfaces from public roads. Table 4 Impervious Area Treated by Private Stormwater Facilities, FY17-18 Springbrook1 Willamette Facility Type Oswego Lake Creek Tryon Creek Tualatin River River Total By Type %of Sq ft Acres Sq ft Acres Sq ft Acres Sq ft Acres Sq ft Acres Acres Total Rain Garden 5861 0.13 10,533 0.24 13,686 0.31 9,570 0.22 6604 0.06 1.06 5.97% Bioswale 601 0.01 - - 6,122 0.14 1,338 0.03 2604 0.15 0.24 1.38% Infiltration Planter 4,768 0.11 - - - - - - - _ 0.11 0.62% Flow-Through Planter 44,461 1.02 - - 38,925 0.89 17,570 0.40 6641 0.76 2.47 13.89% Porous Pavement - - - - - - 508 0.01 - _ 0.01 0.07% Permeable Pavers 2,102 0.05 - - 1,836 0.04 920 0.02 - _ 0.11 0.63% Infiltration Trench/ Galleries 129,767 2.98 192,628 4.42 39,016 0.90 19,730 0.45 32985 0.76 9.51 53.46% Dry Wells 72,616 1.67 25,945 0.60 23,958 0.55 7,724 0.18 2592 0.06 3.05 17.15% Sheet Flow 14,952 0.34 3,497 0.08 1,268 0.03 1,285 0.03 144 0.00 0.49 2.73% Below Threshold 22,572 0.52 1,952 0.04 4,410 0.10 1,796 0.04 1237 0.03 0.73 4.13% Total 297,700 6.83 234,555 5.38 129,221 2.97 60,441 1.39 52,807 1.21 17.8 - Green Infrastructure 57,793 1.33 10,533 0.24 60,569 1.39 29,906 0.69 15,849 0.36 4.01 22.5% Percent Untreated 7.6% .1% 3.4% 3.0% 2.3% 4.1% Table 5 Impervious Area Treated by Public Stormwater Facilities, FY17-18 I Springbrook I I I Willamette Facility Type Oswego Lake Creek Tryon Creek Tualatin River River I Total By Type Acre %of Sq ft Acres Sq ft Acres Sq ft s Sq ft Acres Sq ft Acres Acres Total Bioswale 1,500 0.03 1,045 0.02 - - - - - _ 0.05 71.4% Sheet Flow 640 0.02 - - - - - - - - 0.02 28.6% Total 2,140 0.05 1,045 0.02 - - - - - - 0.07 - Green Infrastructure 1,500 0.03 1,045 0.02 - - - - - - 0.05 71.4% Percent Untreated 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% Lake Oswego NPDES MS4 Annual Report FY17-18 Page 12 6.0 ADDITIONAL ACTIVITIES There were no additional activities completed as part of the MS4 permit in FY17-18. Details of progress towards meeting the remaining measurable goals for the MS4 permit can be found in Appendix A. Lake Oswego NPDES MS4 Annual Report FY17-18 Page 13 This page intentionally left blank Lake Oswego NPDES MS4 Annual Report FY17-18 Page 14 APPENDIX A LAKE OSWEGO SWMP IMPLEMENTATION STATUS Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 1 This page intentionally left blank Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 2 Key to Pollutant Symbols A full circle(•) indicates the BMP is expected to address the parameter.An empty circle(0) indicates the BMP may be expected to address the parameter.A blank cell indicates that the effect of the BMP is unknown at this time. The BMP Addresses: Best Hg Responsible Measurable Goals Tracking Measures Management Bacteria P or Division or (2012 SWMP) (2012) Annual Report Information for FY17-18 Additional Detail Related to Activities Conducted Practice(BMP) SVS Department Element#1 Illicit Discharge Detection and Elimination 1) Conduct dry weather field 1)All 3 priority outfalls were inspected for FY1718. No additional investigations were screening at 100%of priority outfalls 1)Track the number necessary. within the City annually. Based on and percent of priority BMP ILL1 results of annual inspections and any outfalls inspected Implement the citizen reports,conduct follow-up annually. 2) No additional sampling or follow-up was performed. Illicit 0 0 0 Engineering investigations and take enforcement Discharge actions. 2) Describe results of Elimination all follow up Program Additional Commitment: Develop an investigations IDDE Enforcement Response Plan by conducted. November 1, 2012. 1)There were 35 spills and illicit discharges in FY17-18 of which 6 involved SSOs(see The City conducts 2 Drug Take Back events each year(April Table)and 15 were due to motor vehicle accidents. The watershed most affected by and September). For FY17-18,the events resulted in the incidents was Oswego Lake(46%)with Springbrook affected by 20%of the approximately 400 lbs of drugs being removed from the incidents and the Tualatin watershed affected by 17%. possibility of being landfilled or flushed down the toilet. 2)The City departments utilize each other's strengths to create the best response team for a spill or illicit discharge. This teamwork sometimes results in multiple departments responding to the same incident. In FY17-18, Public Works responded to 8 and assisted on 5. Engineering responded to 3 and assisted on 3. Fire responded ';'::::: '-' :1) Indicate the number 19 incidents and assisted on 3. 3) Follow upactivities for non-motor vehicle accidents: ` of spills reported annually. Resp Regulatory Public Works, 2)Track the number of Date Dept Action Follow-up Actions - _ BMP ILL2 Fire, spills responded to by Eng, Complaint received of white discharge from outfall. -j + — =" Engineering, 1) Respond to all spills reported to the City of Lake 7/26/17 PW None Investigated but couldn't determine source. + ' Implement the 0 0 0 and Tualatin the City using general procedures Oswego Operations Vehicle leaking gasoline in driveway. Absorbent used to - _ - Spill Response 8/4/17 Fire contain fluids. - Valley Fire outlined under BMP ILL2. staff. = Program OERS Rpt Private lateral broke and drained to catch basin. Property - �`" ~ and Rescue 3) Describe activities (TVFR) 8/23/17 PW 2017-2538 owner not able to repair. City paid for repair. - conducted as a result OERS Rpt Cross-connection found. Property owner required to re- of each spill to which 8/30/17 PW 2017-2603 connect to wastewater. Diesel spill to private drywells. city Operations staff OERS Rpt responds. 10/11/17 PW 2017-2978 SSO due to roots in line. When SSOs and wastewater spills occur,the following steps Delivery truck ran over a curb,punctured fuel tank and are followed: 1)downstream catch basins are plugged;2) spilled 100 gallons of diesel into landscaped island and private drywells. Fire put absorbent down and created a the affected soil or paved areas are disinfected; 3) material Fire, dike around drain to protect drywells.Truck owner in the catch basins is removed after disinfection;and 4)the PW, OERS Rpt contacted and required to initiate cleanup(NWFF material is combined with street sweeping materials and 10/20/17 Eng 2017-3297 Environment). taken to a DEQ-approved landfill in Wasco County. Eng, Driveway being resurfaced. Required to protect catch 10/23/17 PW basins and clean up concrete wash water When an illicit discharge is reported,staff is trained to track them upstream. If the source is easily found, it is stopped Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 3 The BMP Addresses: Best Hg Responsible Measurable Goals Tracking Measures Management Bacteria P or Division or (2012 SWMP) (2012) Annual Report Information for FY17-18 Additional Detail Related to Activities Conducted Practice(BMP) SVS Department OERS Rpt and the discharger educated and, in some cases,cited for 10/26/17 PW 2017-3121 Wastewater line plugged with roots. the discharge. If the source is not readily apparent,staff Small oil sheen on roadside-unknown source. Applied collect samples and send to the laboratory for analyses 11/09/17 Fire absorbents to the area appropriate for the catchment,color,smell,and other Multiple properties with broken wastewater laterals on factors. 11/17/17 PW Oswego Lake. Property owners required to repair. OERS Rpt 12/04/17 PW 2017-3448 SSO The City updated its spill response plan to comply with the OERS Rpt recent UIC permit. 12/15/17 PW 2017-3518 SSO Concrete contractor dumping concrete near a wetland; 1/26/18 PW required to remove the concrete and dispose of properly Warning 3/5/18 Eng Letter Algaecide spill. Warning letter sent Suspects punctured fuel tank to steal gas from vehicle.One gallon of gas leaked into the street and gutter. Absorbent used to catch remaining fluids from vehicle and soil dike 3/9/18 Fire created to protect catch basin. Semi-truck broke a hydraulic line-approx. 15 gal spilled into the street&landscaping.Absorbent used to contain Fire, spill and truck owner required to contact an environmental 3/9/18 PW cleanup company. (River City Environmental) Oily material coming from rear differential.Adsorbent used 3/16/18 Fire to clean up oil(approx. 1 liter). Fire, Punctured gas tank in SUV.Absorbent used to contain 4/9/18 PW gasoline. Painting company refinishing exterior of condominium 5/22/18 Eng Citation complex. Required to clean catch basins and alleyway. Owner replaced concrete panel with wash water going to 5/25/18 Eng catch basin. Required to clean catch basins and street. Element#2 Industrial and Commercial Facilities 1)Track the number of 1)The GIS inventory of industrial and other potentially pollutant-source facilities was 1) Annually review and update the industrial dischargers updated in June 2014. list of industrial dischargers and and potential high BMP IND1- potential high pollutant source pollutant source 2) Lake Oswego is mostly residential and has limited commercial and industrial Screen Existing facilities to the City's MS4 system. facilities identified and New 0 0 0 Engineering facilities. No new industrial facilities were identified during the reporting period. Industrial 2) Notify the industrial facility and annually. Facilities DEQ when facilities are identified that 2)Track the number of are subject to an industrial industrial facilities stormwater permit. requiring permits identified annually. BMP IND2 1) Develop a strategy for high 1)Track the number 1) No inspections were performed during the reporting period. The strategy for inspecting high pollutant-source facilities Conduct 0 0 0 Engineering pollutant source facility inspections and results of was completed in June 2014; using a combination of Inspections of business licenses, SIC codes, DEQ permit searches,and and follow up by July 1, 2013. potential high High Pollutant business types. Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 4 The BMP Addresses:I I I I Best Hg Responsible Measurable Goals Tracking Measures Management Bacteria P or Division or (2012 SWMP) (2012) Annual Report Information for FY17-18 Additional Detail Related to Activities Conducted Practice(BMP) SVS Department Source 2) Inspect the identified, potential pollutant source Facilities high pollutant source facilities a facility inspections. minimum of once over the permit term following development of the strategy document. Element#3 Construction Site Runoff Control 1) Implement erosion and sediment 1)The City issued 387 ESC permits from July 1, 2017 to June 30, 2018. Footprints of infiltration-based stormwater facilities must be control requirements through protected from compaction due to equipment or material BMP EC1- issuance of city permits and tracking storage as per the City's design criteria. Facility construction Implement the of DEQ permits. The first requirement of the standard ESC notes states that wet weather provisions must include soil de-compaction if accidental compaction Erosion and must be in followed from October 1st to May 31st. All permits are provided with the occurred during construction of the development. Sediment 2) Provide wet-weather construction 1) Record the number construction requirements for the wet weather period. Control(ESC) requirements with all city issued ESC of city issued The Clackamas County ESC manual did not have any updates in FY17-18. For Manual and permits. erosion and stormwater requirements,the City's Stormwater Management Manual (SWMM) has • • 0 Engineering the replaced sediment control City's Sewer and Surface Associated 3)Additional Commitment: Y Design g and Construction Standards for Sanitary City Document updates to the Clackamas (ESC) permits issued Water Management. Ordinances County ESC Planning and Design annually. Related to Manual and City's Design and Erosion Construction Standards for Sanitary Control Sewer and Surface Water Management,as necessary. 1) Conduct an initial and final site 1)Track the number of 1)There were 447 ESC inspections from July 1, 2016 to June 30, 2017. Of those,there All initial inspections include conditions and all inspections inspection for all new residential and initial and final ESC were 80 initial inspections and 189 final inspections. include some type of corrections. All inspections are commercial construction sites inspections conducted annotated with the requirement to"maintain BMPs 2)There were 143 intermediate/unscheduled inspections from July 1, 2017 to June 30, throughout the duration of the project." requiring a City-issued ESC permit. 2)Track the number of 2018. g p BMP EC2- 2) Conduct a minimum of one unscheduled intermediate inspection is conducted prior to footings inspections during3)There were 45 construction sites that required more than three ESC inspections. Thepoured at the project. Conduct unscheduled inspection during active p being p 1 Erosion construction at all sites requiring a active construction. 4)The City issued 1 citation Most sites receive site inspections for permits other than Control 0 • • Engineering City ESC permit,and conduct 3)Track the number of ESCs and staff may notice problems but the inspections are Inspections additional inspections for potentially sites with more than 3 not formal. The 4 staff who are certified ESC inspector are and problematic sites. inspections. notified by other staff for potential problems and the notice Enforcement may result in a formal inspection 3) In conjunction with construction 4)Track the number of activities requiring a City-issued ESC enforcement actions Stop Work Orders always come with written warnings. permit, implement an escalating including written enforcement matrix. warnings. Element#4 Education and Outreach Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 5 1 and 2)Staff provided or supported the provision of the following materials related to landscape management: To leverage public education,outreach,and involvement efforts,the City is a member of the Regional Coalition for • Items available for pickup at City Hall consisting of: brochures on safe alternatives Clean Rivers and Streams(RCCRS),Clean Rivers and Streams to landscape chemicals; a safe cleaning product shopping list pad; and spray bottles (state-wide), KOIN's Clean Water Partners,the Tualatin Basin with recipes for insecticidal soap and garlic spray insect repellant. Public Awareness Committee (TBPAC), and the Regional Water Provider's Consortium (RWPC). The RCCRS, KOIN, and • The City continued residential composting program associated with yard waste RWPC support media based education while TBPAC focuses pickup by Republic Services. on hands-on outreach efforts. • The City uses 2 newsletters(LO Down and HelloLO),social media (Twitter, Annual reports for the City's educational partner groups are Facebook, Instagram, and NextDoor),and a printed calendar to publicize or included in Appendix C. The groups track their activities on promote events and messages. The 2018 calendar is well received in the a regional basis and are not specific to Lake Oswego community and has also been recognized outside the City. The City-County although ads bought by the groups may include the Lake 1)Summarize the Communications& Marketing Association (3CMA)gave the 2018 Calendar the Oswego Review. 1) Provide educational materials two distribution and Award of Excellence—it won among 740 entries from 198 jurisdictions throughout times per year related to impacts of content of outreach the United States. The City also provides up to$38,000 to the regional Backyard fertilizers, herbicides,and pesticides material related to Habitat Certification program of which $37,000 was spent in on water qualityand on the use of Primary messages for the FY17-18 educational campaign included the beneficial landscape FY17-18. alternative,environmentally-friendly management on an effect of naturescaping and urban forestry on erosion, infiltration,and stream products. annual basis. temperature; recycling of electronics and bulky waste which affect trash, metals, and toxins in streams; keeping catch basins clean,and leaf disposal. The City also 2) Provide educational materials promoted the Drug Take Back Events held in the spring and fall through HelloLO, related to watershed protection, 2)Summarize the LO Down, and social media;and by posting flyers at the Adult Community Center BMP PE1- proper disposal practices,and distribution and I E and on the DEA website. Details and timing of the social media posts,calendar RIVER Provide Public facilitation of public reporting of illicit content of outreach STARTS , Education and discharges annually. material related to tips, and newsletter articles can be found in Appendix C. Engineering, proper disposal • Staff staffed a table at the Oswego Lake Watershed Council's"State of the ." - ,` R v i Outreach 0 0 0 Public Works, 3) Conduct catch basin marking practices for oil, Watershed" event. : �" Materials _Public Affairs during the permit term. hazardous waste, . Regarding • Staff provide landscaping/water conservation audits from May to October and, in /ow" y II .9 `N. 4) Continue participation with the paints,etc.,on an Stormwater FY17-18,completed 30 audits for commercial properties. The audits explain the Regional Coalition of Clean Rivers and annual basis. -"" `_ .. Management impacts of overwatering, improper plant selection, and excessive fertilizer on Streams. 3)Track the number streams.The City offers free hose timers, rain sensors,soil test kits,and soil Si can or uKE 5) Coordinate with other local, Phase and percent of total moisture probes with each audit. OSWEGO I permittees in the public education 5'T RR catch basins marked • Each year,staff provides presentations on water management. In FY17-18,we spoke Healthy effectiveness evaluation. annually. Watersheds at regional workshops, meetings, and provided a workshop on water audits at the ProsTan 6) Additional Commitment: AWWA conference in May of this year. Document other public education and 4) Report on the status Promoting healthy watersheds at the Lake Oswego Farmers of thepublic education • Staff assisted with the Oregon Landscape Contractor Certification Test as a judge in outreach activities not specified as a Market measurable goal. effectiveness FY17 18. evaluation. • Staff continues as a source of on air expertise for local and regional PSAs, Local Gardener shows and other on air media resources. • The Regional Coalition for Clean Rivers and Streams uses newspaper ads,Twitter, Facebook,and a website(TheRiverStartsHere.org)to provide public stormwater education and promote local member events such as the Big Float and stream cleanups. The primary messages for FY17-18 included fertilizer and herbicide use, pet waste,and motor oil/car maintenance issues(see Appendix C). • The City provided support through the Clean Water Partners for the KOIN "Water- Do Your Part"TV campaign and related online content PSAs are provided during the weather segment of the newscast. PSA subjects included Hot Tubs and Pools, RV Waste, Fall Lawn Care, Catch basin Readiness,Snow/Ice Removal, Pet Waste, Naturescaping(wildlife gardens, invasive plant removal, and native plants), Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 6 The BMP Addresses: Best Hg Responsible Measurable Goals Tracking Measures Management Bacteria P or Division or (2012 SWMP) (2012) Annual Report Information for FY17-18 Additional Detail Related to Activities Conducted Practice(BMP) SVS Department Pesticides,and Auto Fluid Disposal.The campaign reached over 7.9 million viewers throughout the metro region through its Facebook and TV presence. • The Tualatin Basin Public Awareness Committee provides naturescaping workshops,stream crossing signs(see information under storm drain markers), watershed assemblies by Will Hornyak,and brochures teaching how to provide low-impact yard care. • Staff maintained 59 pet waste pickup bag dispensers across natural areas, pathways, and 31 park facilities. 3) The City has an ongoing volunteer-based storm drain marking program to discourage illicit discharges into the storm drains. In FY17-18,volunteers marked 198 storm drains. In addition,signs designating Three Sisters Creek as part of the Tualatin Basin were posted at Kruse Way and Mercantile Dr. Clackamas County manages a program called "Leaders in Sustainability"that requires, among other steps,that businesses mark their private catch basins in order to participate in the program. There are 15 businesses in Lake Oswego that participate in the program. 4)The Public Education Effectiveness Evaluation was submitted to DEQ on July 1, 2015. BMP PE2— All City Erosion Control Permits are issued with information consisting of applicable Provide flyers:An Erosion and Sediment Control Primer,Wet Weather Season Erosion and 1) Continue to provide access to the Educational Sediment Control Requirements,and Basic Erosion Prevention and Sediment Control Erosion Prevention and Sediment Training on residential construction sites. City staff provides assistance at the initial inspection Opportunities 0 0 0 Engineering Control Planning and Design Manual 1) N/A to contractors if the ESC BMPs are inadequate. for to engineers,contractors, and Construction developers. Site Operators 1) During the permit term, require 1)The City has 20 ODA-licensed applicators and contractors who are required to training and certification in maintain their ODA certification. accordance with Oregon Department 1) Report on the BMP PE3- of Agriculture regulations. Require number of staff Conduct Staff staff to maintain certification. Parks and attending continuing Training for 0 0 0 Recreation education classes to Pest 2) In accordance with the update of the City's IPM Practices(see BMP maintain ODA Management PEST2),annually train staff on new applicator license. maintenance activities,once revised IPM procedures have been adopted. Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 7 The BMP Addresses:I I Best Hg Responsible Measurable Goals Tracking Measures Management Bacteria P or Division or (2012 SWMP) (2012) Annual Report Information for FY17-18 Additional Detail Related to Activities Conducted Practice(BMP) SVS Department mi in • =t�r+� ---• ._ ti ;f�' l• T.Us mAT6AIALs - REBPONNSE MMAW Ix 4; ., � 1 ° � BMP PE4 1)Track the number of 1) 48 firefighters attended the 8-hr HAZWOPER Refresher course. Battalion Chiefs are F., ; ..  ' Conduct Staff 1) Provide spill response training to trained to the HazMat Incident Command level. i " 'i' _ L = r ` 0 0 0 Public Works employees receiving =`.. Training in appropriate city staff annually. iR -- ' ' • spill training annually. t, '� Spill Response _ t 1 t of 4 * -r-----__ __�___ �_ Training for City firefighters 1) Conduct 2-4 meetings annually for 1)The stormwater and surface water management training attended by staff includes: The City maintains active memberships in the following employees associated with • 3 people attended the ACWA Stormwater Summit in May 2018 organizations that provide formal training opportunities or stormwater management within the access to current research and best practices with regard to • 1 person attended a seminar on vegetated stormwater facility design City. surface water or stormwater management: 2) Coordinate annually with other 1)Track the number of • 14 people attended a webinar on stormwater facility maintenance • American Public Works Association employees attending • 27 people attended confined space training received confined space training which Clackamas County co-permittees • Association of State Floodplain Managers/Northwest regarding regional water quality meetings regarding is required for anyone entering the manholes,vaults, and other stormwater system Regional Floodplain Management Association efforts. stormwater components located below ground and with a restricted entry/exit. BMP PE5- management annually. • Oregon Association of Clean Water Agencies 3)Throughout thepermit term, 2)Staff attended 2 Clackamas co-permittee meetings to discuss challenges and • Promote Staff g 2)Track the number of Water Environment Federation/Water Environment Education and O 0 0 Engineering participate,where practicable, in successes with their programs and upcoming DEQ requirements. Research Foundation. joint projects related Participation conferences and training to stormwater Staff also participate in less formal or focused activities, opportunities available through state management in which including: ACWA Stormwater Committee and Groundwater and local agencies. the City is currently Meetings;and USGS Oregon Water Resources Center 4)Additional Commitment: Continue involved. seminars. to attend and participate in conferences, meetings,and seminars related to stormwater and surface water quality. Element#6 Post-Construction Site Runoff 1)Staff reviewed 88 land use applications and completed 106 engineering reviews of The number of new development applications reviewed building permit applications(See Section 5.2). In addition,staff conducted informal reflects parcels with complete building permit applications. 1)Track the number of re-a lication meetings for 98parcels where applicants were informed of Multiple applications can be associated with the same BMP DEV1— 1) Continue to review all new new development p pp g pp p pp development applications for development requirements; not all of these become land use applications. parcel, i.e. multiple structures such as a detached garage at Development • • • Engineering compliance with existingstandards applications reviewed the same address. com Review p for stormwater quality There were 160 private stormwater facilities constructed in FY17-18 to treat 775,674 for water quality. compliance. sq ft of impervious surface. Three public stormwater facilities were constructed to treat 3,185 sq ft of impervious area created by private development. Additional details can be found in Section 5.2 of the main report. BMP DEV2 1) During permit year 1, review 1) Newly adopted municipal code went into effect March 17,2016. Review and • • • Engineering current municipal code provisions for (1) N/A Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 8 The BMP Addresses: Best Hg Responsible Measurable Goals Tracking Measures Management Bacteria P or Division or (2012 SWMP) (2012) Annual Report Information for FY17-18 Additional Detail Related to Activities Conducted Practice(BMP) SVS Department EL Update the consistency with NPDES MS4 permit 2)The City updated the SWMM in March 2016. Private development applications Applicable language. must construct onsite stormwater management for new impervious area >1,000 sq ft Code and and for new/replaced impervious area >3,000 sq ft. Development 2) During permit year 1, review the Standards City's Surface Water Technical Related to Handbook and other local Stormwater jurisdiction's stormwater design Control manuals. Revise,adopt,or develop a manual consistent with NPDES MS4 permit language. Additional Commitment: Update the City's existing post-construction stormwater design standards and code language by November 1, 2014. Element#7 Pollution Prevention for Municipal Operations 1) The City has 8 curbed arterials and 1 non-curbed arterial. All curbed arterials were Staff swept 4,400 curb miles in FY17-18 resulting in removal swept at least 14 times with the majority swept 30 or more times. The non-curbed of 1,400 cu yds of debris(0.32 cu yd/curb mile)which was BMP OM1— 1)List all curbed arterial (Stafford Rd)was swept once. slightly less than thepreviousyear(0.34 cuyd/curb 1) Annually sweep all curbed p g y mile). Street streets between 13 arterial streets and The street debris is tested annually and sent to a DEQ- arterial2 The Cityhas 33 curbed collectors and 12 non-curbed collectors. The curbed Sweeping of dates swept. approved landfill in Wasco County. and 22 times. collectors were swept a minimum of 11 times. A majority of the curbed collectors Curbed 0 0 • Public Works 2) AnnuallysweepList allcurbed Arterial and all curbed 2) were swept at least 13 times. The non curbed collectors were swept at least once The City has 23 curbed pathways and 85%of the pathways residential streets between 2 residential streets with the exception of South Shore Blvd which was swept 5 times. were swept at least once in FY17-18 Residential and 6 times. and dates swept. Streets Street sweeping dates, maintained in the City's asset management system,are available for review if requested. 1)The City removed 1,466 cubic yards of leaves during the permit year. Snow and ice events in FY17-18 resulting in 11,000 gallons of 2)Staff used HelloLO, LO Down,and the 2017 Dog Calendar to remind the public to de-icer being applied to city streets. An additional 200 1) Pick up all deicing materials as 1) Report the volume keep leaves out of the street and to remove them from the top of catch basins. The gallons of de-icer was used to keep sidewalks clear. promptly as weather and resources of leaves collected City did not provide a leaf collection event in FY17-18, however it offered free drop-off • - 'j: � allow. from city streets in the bins for neighborhoods that wished to create their own event. Two neighborhoods , r u annual report. took advantage of the offer. . a : 2) Pick up all leaf debris from city •'' .ir. BMP 0M2— streets a minimum of once per 3. = V l _- Deicing • and2) Provide the - season toprevent inlet clogging and 4 _ Leaf Pick Up0 0 • Public Works gg g description of leafy �- , localized flooding. R. .x�. _. C'� Activities debris collection The City regularly reminds the public in the Fall to - ; - d; 3) Promote yard waste collection information that is - remove leaves from the street and to _ services provided by City Waste distributed to the • - % ' keep catch basins clear.. 4 Contractor once per season during public for leaf pick up , ` al, • • permit term. and recycling. ' ' a -, _•- De-icer is applied to streets with steep grades. Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 9 The BMP Addresses: Best Hg Responsible Measurable Goals Tracking Measures Management Bacteria P or Division or (2012 SWMP) (2012) Annual Report Information for FY17-18 Additional Detail Related to Activities Conducted Practice(BMP) SVS Department Staff maintains a list of inlets that are prone to clogging due to leaf fall. These inlets are checked and cleaned as necessary before forecasted rain events of 1"or greater. 1)Staff and contractors used the following pesticides in FY17-18: The City uses phosphorus-free fertilizer and a mulching Qua itity mower. * o. City Property Pesticide Name ~ Active Ingredients Gal Lbs Name Willamette SFM 75 H Sulfometuron-methyl 0.4 Shore Trolley Willamette Glyphosate 4+ H N-(phosphonomethyl)glycine 5.6 Shore Trolley Willamette MSM 60 H Metsulfuron-methyl 0.1 Shore Trolley Sulfometuron-methyl and Willamette SFM Extra H Metsulfuron methyl 0.9 Shore Trolley Willamette Glyphosate 4+ H N-(phosphonomethyl)glycine 8.5 Shore Trolley 1) Following 3,6-Dichloro-2-pyridinecarboxylic Willamette development of a Clopyralid 3 H acid 0.9 Shore Trolley 1)Continually ensure that 100%of Glyphosate N- PW City-wide pesticide applicators operating within process for Glyphosate Brands H hos hormeth I I cane 68.0 and Parks BMP PEST1— pp� p I; (p p Y)g Y Reduce the public right-of-way are certified inventorying g y pesticides, annually Rodeo H Glyphosate 2.4 Parks Pollutants in and licensed. report on the quantity Parks and Discharges 2) ByNovember 1, 2012,developa ofpesticides applied IGarlon 3A H Triclopyr 20.2 Natural Areas associated Public Works, pp Parks and Golf 0 • 0 Parks and process to inventory pesticides to City property. with Sureguard H Flumioxazin 1.3 Course Recreation applied to co-permittee owned or Application of 2)Annually report an Y Ronstar G H Oxadiazon 40.5 Parks operated property. Upon Pesticides, efforts and development of the process,annually Weed and Feed H 2,4-D 40.0 Parks Herbicides, inventorypesticide use on applicable alternatives to reduce pp Snapshot H Trifluralin 6.3 Parks and Fertilizers the quantity of property. pesticides used by the Rodeo H Glyphosate 42.3 Natural Areas City on City property. Vastlan H Triclopyr 16.6 Natural Areas Round-Up Pro H Glyphosate 0.9 Golf Course Chlorothalonil, Propicanozole, Instrata F Fludioxonil 10.0 Golf Course Carfentrazone-ethyl;2,4-D; Speedzone H Mecroprop-p acid;Dicamba acid 0.2 Golf Course IFungicide VII F Triadimefon 40.0 Golf Course ISecure F Fluazinam 1.3 Golf Course 'Affirm F Polyoxin D zinc salt 3.6 Golf Course IHeritage F Azoxystrobin 1.0 Golf Course Total 184.6 126.4 H=herbicide; F=Fungicide 2) When appropriate,the City: • Minimizes the use of pre-emergent herbicide Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 10 The BMP Addresses:I I Best Hg Responsible Measurable Goals Tracking Measures Management Bacteria P or Division or (2012 SWMP) (2012) Annual Report Information for FY17-18 Additional Detail Related to Activities Conducted Practice(BMP) SVS Department • Uses mulch instead of herbicides when possible. • Uses de-foaming agents and surfactants to reduce drift and increase surface adhesion to target plants • Follows established IPM guidelines BMP PEST2— 1) Continue to implement and by 1) No changes were made to the 2013 Integrated Pest Management Plan in FY17-18. The City's Integrated Pest Management program, including Update City November 1, 2014, update the City of current documents,can be found on the City's website here: Public Works, Integrated Lake Oswego Integrated Pest htta://www.ci.oswego.or.us/aarksrec/parks-integrated-aest- O • 0 Parks and 1) N/A Pest Management Practices to reflect management Management Recreation accepted integrated pest Practices management principals. BMP 0M4- 1) No public facilities were built or renovated in FY17-18. Implement a 1)Track the status of Program to 1) Inventory facilities subject to this inventorying and Reduce the permit requirement and implement Impact of 0 0 0 Public Works and track strategies to reduce the implementing Stormwater impact of stormwater runoff from strategies at facilities Runoff from these facilities by July 1, 2013. subject to this Municipal requirement. Facilities BMP ILL3- 1)One cross-connection to the stormwater system was found in FY17-18. The Control property owner was required to reconnect to the public wastewater system. Infiltration 1) Indicate the number and Cross 1) Ensure all identified cross of cross connections • 0 0 Public Works connections are abated upon Connections to discovered and abated Stormwater discovery. annually. Conveyance System Element#8 Stormwater Management Facilities Operation and Maintenance 1) Inspect the publically owned 1)Track the number 1) No conveyance system components were inspected in FY17-18 BMP 0M5— stormwater conveyance system and length of 2)When snow or ice is forecast,the City treats the streets with a de-icer. In FY17-18, conveyance system the City used 11,000 gallons of de-icer on city streets. An additional 200 gallons was Inspection and components(pipes,culverts, ditches, components inspected used on sidewalks in front of City facilities. When streets are sanded during snow and Maintenance and inlets) during the permit term. 2) Based on the results of inspections annually. ice events,the sand is removed within 5 days after the storm event. of Public • 0 • Public Works p 2) Describe all Conveyance and citizen complaints, maintain/ Staff maintain 1,600 fire hydrants in the City Limits;the water is dechlorinated when System repair the conveyance system potentially impactingi s they y Y maintenanceactivities are flushed for maintenance of the hydrants and the lines. Components components in need of service during water quality that are The City has increased maintenance of the wastewater system to reduce SSOs caused the permit term. conducted annually. by root-related blockages. The City has partnered with the City of Portland on a Fats, Oils, and Grease(FOG) program to reduce SSOs due to FOG. BMP 0M6— 1) Inspect all publically owned catch 1)Track the number The City inspected and maintained 1,443 catch basins in FY17-18(58%). In the FY12-13 Annual Report, Pollution Control Manholes basins with sumps annually. (sumped catch basins with outlet or other configurations to Inspection and and percent of catch increase material retention)were included in this cate • 0 • Public Works basins inspected gor y Maintenance 2) Maintain a minimum of 90%of the Since FY13-14,they have been tracked in BMP 0M7. of Public Catch city owned sumped catch basins annually. Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 11 The BMP Addresses:I I I I Best Hg Responsible Measurable Goals Tracking Measures Management Bacteria P or Division or (2012 SWMP) (2012) Annual Report Information for FY17-18 Additional Detail Related to Activities Conducted Practice(BMP) SVS Department Basins with annually, based on regular 2)Track the number Sumps maintenance schedules and results of and percent of catch inspections. basins maintained annually. 1) Report status of 1) The City tracks operation and maintenance of public water quality facilities in the 1) Develop a program to track and program to track InFor asset management system;this information is reported above under BMPs report on public and private water public and private OMB and OMB. During FY13-14,the City developed a risk-based strategy for quality facility operation and stormwater facility prioritizing inspections of public and private water quality facilities based on a model maintenance activities by July 1, operation and that incorporated facility type,age in the ground, and underlying soil conditions 2013. maintenance (with respect to both potential pollutant loading and infiltration risk). •Annually inspect all publically 2) Report number 2) The City inspected and maintained 33 stormwater planters in FY17-18. owned water quality treatment andpercent of public 3) Material frompollution control manholes and vault forebays are removed with a BMP 0M7— y facilities. stormwater facilities vactor truck; and filter cartridges in the vaults are inspected and reconditioned on an Tracking, 2) Annuallyconduct routine Maintenance inspected annually. as-needed basis. Detention ponds are dredged and LID stormwater facilities are maintenance activities to ensure 3) Report number of weeded, replanted, and mulched. Waste from these maintenance activities is and Inspection Public Works, functionalityofpublic water quality of Water Engineering q y public stormwater combined with street sweeping debris and taken to a DEQ-approved landfill in Wasco Qualit treatment facilities. facilities maintained County. Y 3) Maintain an inventory of private Treatment annually;describe 4) No private water quality facilities were formally inspected in FY17-18. water quality facilities in the maintenance Facilities conjunction with receipt of private activities. facility operations and maintenance 4) Report number agreements. and percent of 4) Annually inspect 10%of private private stormwater water quality facilities for which an facilities inspected O&M agreement is on file with the annually;and date of City. inspection. Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 12 APPENDIX B LAKE OSWEGO MONITORING DATA ABBREVIATIONS BOD5 5-Day Biological Oxygen Demand Ca Calcium CL2 Chloride Cu Copper DOC Dissolved Organic Carbon Mg Magnesium K Potassium Na Sodium NH3 Ammonia NO3 Nitrate P Phosphorous Pb Lead PO4 Ortho-Phosphate SO4 Sulfate TDS Total Dissolved Solids TOC Total Organic Carbon TSS Total Suspended Solids TVS Total Volatile Solids Zn Zinc Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 13 This page intentionally left blank Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 14 Table B-1 Nettle Creek abv Tryon Creek, Instream Monitoring Results, FY17-18 Staff Water Specific E.coli Alkalinity, Hardness, NH3, NO3, PO4, Q Gauge, Temp DO Conduct (MPN/ as CaCO3 as CaCO3 CL2 Ca Mg K Na 504 BODS as N as N Total P as P Total Cu Diss Cu Total Pb Diss Pb Total Zn Diss Zn TSS TDS TVS Turbidity TOC DOC Date (cfs) ft (°C) (mg/L) (µS/cm) pH* 100mL) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (NTU) (mg/L) (mg/L) 07/19/17 10:50 ND NA 14.9 9.45 184.0 7.73 167 NS 63.1 NS NS NS NS NS NS <2 <0.0012 0.86 0.082 0.10 0.0010 0.0008 J 0.00006 0.00002 J 0.005 0.003 <2 NN 135 48 5.05 NS NS 08/17/17 12:10 <0.1 NA 16.7 7.51 305.5 7.81 1203 55.0 91.3 49.0 25.0 7.0 1.98 17.20 10.1 <2 0.01 0.57 0.065 0.06 0.0010 J 0.0010 <0.0000067<0.000005 0.003 0.002 3 NN 225 86 2.28 3.25 3.22 09/12/17 10:07 <0.1 NA 16.5 9.32 203.3 7.80 ND NS 67.5 NS NS NS NS NS NS <2 <0.0012 0.53 0.089 0.08 0.0020 0.0010 J 0.00006 J 0.00003 J 0.003 0.002 <2 138 34 3.61 NS NS 10/24/17 11:35 1.7 NA 11.8 11.72 159.6 7.70 548 NS 54.4 NS NS NS NS NS NS <2 <0.0012 1.34 0.068 0.05 0.0020 0.0014 J 0.00010 J 0.00005 J 0.004 0.005 <2 125 51 5.24 NS NS 11/14/17 10:11 3.2 NA 10.1 9.10 141.9 7.80 435 NS 45.6 NS NS NS NS NS NS <2 <0.0012 0.93 0.070 0.05 0.0020 0.0020 0.00030 J 0.00004 J 0.008 0.006 3 NN 108 35 7.87 NS NS 12/12/17 11:50 1.1 NA 4.2 10.90 171.8 8.00 365 56.5 48.8 8.2 12.1 2.4 6.54 6.54 11.8 <2 <0.0012 0.99 0.042 0.04 0.0009 J 0.0003 J 0.00002 J 0.00003 J 0.003 0.003 2 NN 120 20 2.95 1.87 1.86 01/18/18 11:35 2.9 NA 9.5 10.67 120.2 6.99 225 36.5 42.0 5.8 11.0 3.5 1.47 6.56 9.2 <2 <0.0012 0.96 0.067 0.03 0.0026 0.0013 J 0.00040 J 0.00005 J 0.008 0.004 7 NN 98 27 13.20 2.78 2.72 02/15/18 9:10 0.6 NA 6.1 12.70 141.0 7.69 1553 NS 54.2 NS NS NS NS NS NS <2 <0.0012 0.95 0.058 0.03 0.0009 J 0.0007 J 0.00014 J 0.00002 J 0.006 0.003 2 NN 112 28 10.00 NS NS 03/13/18 9:40 4.3 NA 9.7 15.50 95.9 6.70 575 NS 41.3 NS NS NS NS NS NS 10.0 0.03 0.53 0.784 0.04 0.0140 0.0027 0.00550 0.00004 J 0.794 0.298 222 NN 98 60 174.00 NS NS 04/17/18 10:05 3.3 NA 9.0 12.37 138.0 7.73 65 44.3 48.1 5.8 12.6 4.0 1.17 7.73 10.0 <2 0.01 1.00 0.055 0.03 0.0013 J 0.0009 J 0.00025 J 0.00003 J 0.005 0.003 12 NN 111 39 8.05 2.34 2.61 05/16/18 9:15 0.6 NA 12.9 10.07 179.8 7.60 118 NS 63.4 NS NS NS NS NS NS <2 0.01 1.05 0.083 0.05 0.0010 J 0.0009 J 0.00018 J 0.00003 J 0.004 0.005 5 NN 134 36 9.05 NS NS 06/20/18 10:00 0.3 NA 15.6 10.16 180.3 7.38 1986 NS 71.9 NS NS NS NS NS NS <2 0.04 0.66 0.105 0.05 0.0015 J 0.0011 J 0.00004 J <0.00008 0.006 0.013 2 NN 131 35 4.46 NS NS FY1213-FY1617 MAX ND NA 16.9 120.00 230.0 8.62 2419 79.0 84.1 8.6 19.0 6.4 2.10 10.00 14.0 3.0 1.50 1.70 1.330 0.21 0.0390 0.0093 0.02100 0.00024 0.212 0.040 848 160 110 685.00 4.45 4.30 FY1213-FY1617 3RD QUARTILE ND NA 14.2 11.44 171.8 7.87 356 67.0 62.0 7.8 16.3 5.2 1.96 9.60 12.3 2.3 0.03 1.10 0.121 0.11 0.0034 0.0021 0.00039 0.00012 0.017 0.011 20 131 46 8.80 4.01 3.96 FY1213-FY1617 AVERAGE ND NA 11.1 12.16 148.2 7.70 320 52.0 57.3 6.4 15.0 4.7 1.86 7.95 9.0 2.1 0.20 0.96 0.130 0.09 0.0035 0.0018 0.00108 0.00009 0.017 0.009 39 119 39 18.68 3.60 3.50 FY1213-FY1617 MEDIAN ND NA 12.1 10.24 148.9 7.74 149 49.0 56.0 7.6 15.0 4.8 1.80 9.24 9.4 2.2 0.02 1.00 0.092 0.08 0.0019 0.0013 0.00022 0.00008 0.011 0.006 9 120 37 5.89 3.60 3.60 FY1213-FY1617 1ST QUARTILE ND NA 8.8 8.86 134.5 7.60 56 44.0 51.0 5.9 13.7 4.2 1.80 7.45 5.9 2.0 0.01 0.67 0.069 0.06 0.0012 0.0009 0.00013 0.00005 0.006 0.004 4 110 30 3.83 3.35 3.25 FY1213-FY1617 MIN ND NA 2.8 4.70 48.1 6.41 11 2.2 39.0 1.4 11.1 3.2 1.60 2.28 3.4 0.7 0.01 0.31 0.010 0.04 0.0007 0.0007 0.00003 0.00002 0.004 0.002 2 49 14 1.14 2.42 2.22 FY1718 MAX 4.3 NA 16.7 15.50 305.5 8.00 1986 56.5 91.3 49.0 25.0 7.0 6.54 17.20 11.8 10.0 0.04 1.34 0.784 0.10 0.0140 0.0027 0.00550 0.00005 0.794 0.298 222 225 86 174.00 3.25 3.22 FY1718 3RD QUARTILE 3.0 NA 15.1 11.88 181.2 7.80 889 55.4 64.4 18.4 15.7 4.8 3.12 10.10 10.5 <2 0.01 0.99 0.085 0.05 0.0020 0.0013 0.00026 0.00004 0.007 0.005 5 134 49 9.29 2.90 2.85 FY1718 MEAN 1.6 NA 11.4 10.79 168.4 7.58 658 48.1 57.6 17.2 15.2 4.2 2.79 9.51 10.3 <2 0.01 0.86 0.131 0.05 0.0025 0.0012 0.00059 0.00003 0.071 0.029 22 128 42 20.48 2.56 2.60 FY1718 MEDIAN 1.1 NA 11.0 10.42 165.7 7.72 435 49.7 54.3 7.0 12.4 3.8 1.73 7.15 10.1 <2 <0.0012 0.94 0.069 0.05 0.0014 0.0010 0.00012 0.00003 0.005 0.003 2 123 36 6.56 2.56 2.67 FY1718 1ST QUARTILE 0.5 NA 9.4 9.42 140.3 7.55 196 42.4 47.5 5.8 11.8 3.3 1.40 6.56 9.8 <2 <0.0012 0.64 0.063 0.04 0.0010 0.0009 0.00006 0.00003 0.004 0.003 <2 110 33 4.25 2.22 2.42 FY1718 MIN <0.1 NA 4.2 7.51 95.9 6.70 65 36.5 41.3 5.8 11.0 2.4 1.17 6.54 9.2 <2 <0.0012 0.53 0.042 0.03 0.0009 0.0003 <0.0000067<0.000005 0.003 0.002 <2 98 20 2.28 1.87 1.86 SUMMER SEASONAL CONC 0.6 NA 11.7 8.12 168.4 6.45 670 55.0 55.6 49.0 25.0 7.0 1.98 17.20 10.1 <2 0.01 0.67 0.062 0.05 0.0011 0.0008 0.00007 0.00003 0.003 0.002 2 124 41 4.67 3.25 3.22 WINTER SEASONAL CONC 2.5 NA 8.1 11.9 134.80 7.5 536 45.8 46.7 6.6 11.9 3.3 3.06 6.94 10.3 2.5 0.01 0.89 0.179 0.04 0.0036 0.0013 0.00110 0.00003 0.137 0.053 41 108 35 36.01 2.33 2.40 Notes: *pH hold time in March was exceeded;J-Estimated result(between the method reporting limit and method detection limit); NN-Parameter not NELAP-accredited for the analytical method;ND-No data;NS-Not Sampled; NA-Not Applicable;<,>- Result at method reporting limit shown Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 15 Table B-2 Lost Dog Creek at Lake Front Rd, Instream Monitoring Results, FY17-18 Staff Water Specific E.coli Alkalinity, Hardness, NH3,as NO3, PO4,as Total Total Diss Zn DOC Q Gauge, Temp DO Conduct (MPN/ as CaCO3 as CaCO3 CL2 Ca Mg K Na 504 BODS N as N Total P P Cu Diss Cu Total Pb Diss Pb Zn (mg/L) TSS TDS TVS Turbidity TOC (mg/L) Date (cfs) ft (°C) (mg/L) (µS/cm) pH* 100mL) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) ** (mg/L) (mg/L) (mg/L) (NTU) (mg/L) *** 07/19/17 10:00 <0.1 ND 15.7 9.82 156.6 7.74 6 NS 55.7 NS NS NS NS NS NS <2 0.01 0.64 0.087 0.08 0.0020 0.0020 0.00006 <0.000005 0.011 0.010 <2 NN 106 44 1.31 NS NS 08/17/17 11:00 <0.1 ND 17.5 7.38 148.9 7.59 17 56.5 56.7 8.6 15.4 4.4 1.70 7.01 7.6 <2 0.01 0.46 0.088 0.08 0.0030 0.0030 <0.0000067 <0.000005 0.007 0.008 <2 NN 115 29 1.41 4.02 3.94 09/12/17 9:40 <0.1 ND 17.6 7.37 168.2 7.36 387 NS 63.0 NS NS NS NS NS NS <2 0.01 0.80 0.097 0.09 0.0040 0.0020 0.00010 J <0.000018 0.011 0.009 <2 NN 118 32 2.09 NS NS 10/24/17 10:40 1.7 0.70 12.2 11.76 141.8 7.80 53 NS 39.2 NS NS NS NS NS NS <2 0.01 1.45 0.050 0.04 0.0020 0.0020 <0.000055 0.00004 J 0.013 0.014 <2 NN 106 42 3.05 NS NS 11/14/17 10:25 2.3 0.60 10.2 9.03 110.0 7.70 121 NS 35.8 NS NS NS NS NS NS <2 0.01 0.85 0.061 0.04 0.0020 0.0020 0.00040 J 0.00005 J 0.018 0.013 3 NN 89 28 6.07 NS NS 12/12/17 10:45 0.8 0.60 3.9 10.54 127.5 6.70 68 37.4 53.1 5.1 13.9 4.5 1.38 8.44 10.0 <2 <0.0012 1.07 0.031 0.02 0.0020 0.0006 J 0.00006 J 0.00003 J 0.012 0.011 <2 NN 98 28 2.10 1.79 1.72 01/18/18 10:38 3.7 0.76 9.0 12.06 89.9 7.58 488 27.0 34.0 5.0 9.4 2.6 1.09 4.48 7.2 <2 0.01 0.97 0.055 0.02 0.0030 0.0016 J,B 0.00040 J 0.00006 J,B 0.043 0.023 8 NN 80 25 14.20 2.62 2.51 02/15/18 9:55 1.2 0.20 6.3 12.67 108.3 7.68 291 NS 39.7 NS NS NS NS NS NS <2 <0.0012 0.86 0.042 0.02 0.0270 0.0015 J 0.00020 J 0.00006 J 0.014 0.010 <2 NN 70 <10 3.40 NS NS 03/13/18 10:08 16.3 0.80 10.2 15.59 68.0 6.70 285 NS 26.5 NS NS NS NS NS NS 4.0 0.07 0.59 0.259 0.03 0.0100 0.0038 B 0.00240 0.00005 J 0.174 0.093 70 NN 76 34 56.20 NS NS 04/17/18 10:55 4.7 0.70 9.3 12.05 106.2 7.65 28 35.1 39.4 3.5 10.7 3.1 0.87 5.17 8.0 <2 <0.0012 0.90 0.034 0.02 0.0014 J 0.0011 J 0.00016 J 0.00004 J 0.013 0.010 <2 NN 88 30 6.52 2.25 2.40 05/16/18 10:00 0.4 0.40 14.2 8.84 130.4 7.59 82 NS 0.1 J NS NS NS NS NS NS <2 <0.0012 0.84 0.089 0.06 0.0021 0.0024 0.00004 J 0.00003 J 0.002 J 0.011 2 NN 96 29 5.00 NS NS 06/20/18 11:00 0.1 0.20 17.5 9.45 141.6 7.33 23 NS 56.7 NS NS NS NS NS NS <2 <0.0012 0.57 0.072 0.06 0.0021 0.0022 <0.0000067 <0.00008 0.010 0.021 2 NN 104 29 3.18 NS NS FY1213_FY1617 MAX ND ND 20.6 16.17 189.4 8.57 1203 89.0 100.0 7.8 16.0 4.6 1.89 8.83 12.0 2.8 0.66 2.30 1.600 0.31 0.0330 0.0074 0.00150 0.00150 0.176 0.170 48 180 54 89.20 4.10 4.40 FY1213_FY1617 3RD QUARTILE ND ND 15.9 11.30 138.8 7.91 164 46.2 54.0 7.0 15.9 4.5 1.68 7.38 8.6 2.3 0.07 1.30 0.110 0.10 0.0036 0.0025 0.00021 0.00008 0.019 0.015 12 109 35 5.09 3.32 3.54 FY1213_FY1617 AVERAGE ND ND 12.3 9.65 124.1 7.68 180 41.7 47.6 5.7 13.2 3.7 1.52 6.80 7.7 2.1 0.10 0.94 0.143 0.08 0.0038 0.0022 0.00026 0.00013 0.020 0.020 10 97 30 6.51 3.07 3.12 FY1213_FY1617 MEDIAN ND ND 13.4 9.79 123.5 7.74 64 40.0 48.0 6.1 14.9 4.2 1.50 6.95 7.1 2.0 0.04 0.87 0.084 0.07 0.0024 0.0023 0.00018 0.00005 0.014 0.013 6 95 30 2.59 3.06 3.03 FY1213_FY1617 1ST QUARTILE ND ND 9.3 7.78 112.7 7.47 36 34.0 41.0 4.9 11.8 3.2 1.33 6.60 6.1 2.0 0.01 0.57 0.060 0.05 0.0021 0.0020 0.00011 0.00003 0.012 0.010 4 86 25 1.61 2.70 2.69 FY1213_FY1617 MINIMUM ND ND 3.3 4.43 49.8 6.79 1 13.4 23.8 2.3 6.7 1.7 1.22 4.10 4.9 1.4 0.01 0.06 0.035 0.01 0.0009 0.0008 0.00004 0.00002 0.008 0.007 3 62 10 0.91 2.20 2.00 FY1718 MAXIMUM 16.3 0.80 17.6 15.59 168.2 7.80 488 56.5 63.0 8.6 15.4 4.5 1.70 8.44 10.0 4.0 0.07 1.45 0.259 0.09 0.0270 0.0038 0.00240 0.00006 0.174 0.093 70 118 44 56.20 4.02 3.94 FY1718 3RD QUARTILE 3.0 0.70 16.2 12.05 143.6 7.69 287 42.2 56.0 6.0 14.3 4.4 1.46 7.37 8.5 <2 0.01 0.92 0.088 0.07 0.0033 0.0023 0.00025 0.00005 0.015 0.016 2 106 33 6.18 2.97 2.87 FY1718 AVERAGE 2.9 0.55 12.0 10.55 124.8 7.45 154 39.0 41.7 5.6 12.3 3.6 1.26 6.28 8.2 <2 0.01 0.83 0.080 0.05 0.0051 0.0020 0.00032 0.00003 0.027 0.019 8 96 30 8.71 2.67 2.64 FY1718 MEDIAN 1.2 0.60 11.2 10.18 129.0 7.59 75 36.3 39.6 5.1 12.3 3.8 1.24 6.09 7.8 <2 0.01 0.85 0.067 0.04 0.0021 0.0020 0.00008 0.00004 0.013 0.011 <2 97 29 3.29 2.44 2.46 FY1718 1ST QUARTILE 0.3 0.40 9.2 8.98 107.8 7.35 27 33.1 35.4 4.6 10.4 2.9 1.04 5.00 7.5 <2 <0.0012 0.63 0.048 0.02 0.0020 0.0016 0.00004 0.00002 0.011 0.010 <2 86 28 2.10 2.14 2.23 FY1718 MINIMUM <0.1 0.20 3.9 7.37 68.0 6.70 6 27.0 0.1 3.5 9.4 2.6 0.87 4.48 7.2 <2 <0.0012 0.46 0.031 0.02 0.0014 0.0006 <0.0000067 <0.000005 0.002 0.008 <2 70 <10 1.31 1.79 1.72 SUMMER SEASONAL CONC 0.5 0.43 15.8 9.1 147.92 7.6 95 56.5 45.2 8.6 15.4 4.4 1.70 7.01 7.6 <2 0.01 0.79 0.081 0.07 0.0025 0.0023 0.00004 0.00002 0.009 0.012 <2 108 34 2.67 4.02 3.94 WINTER SEASONAL CONC 4.9 0.61 8.2 12.0 101.65 7.3 214 33.2 38.1 4.5 11.3 3.4 1.11 6.03 8.4 <2 0.02 0.87 0.080 0.03 0.0076 0.0018 0.00060 0.00005 0.046 0.027 14 84 25 14.75 2.22 2.21 Notes: *pH hold time in March was exceeded; **Diss Zn lab blank in January and March 2018 contained Zn;***DOC lab blank in August 2017 contained carbon; J-Estimated result(between the method reporting limit and method detection limit); NN-Parameter not accredited under NELAP for the analytical method used; ND-No Data; NA-Not Applicable;NS-Not Sampled;<,> -Result at method reporting limit shown Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 16 Table B-3 Springbrook Creek at Iron Mountain Blvd, Instream Monitoring Results, FY17-18 Staff Water Specific E.coli Alkalinity,Hardness NH3, NO3, PO4, Diss Zn Q Gauge, Temp DO Conduct (MPN/ as CaCO3 as CaCO3 CL2 Ca Mg K Na SO4 BOD5 as N as N Total P as P Total Cu Diss Cu Total Pb Diss Pb Total Zn (mg/L) TSS TDS TVS Turbidity TOC DOC Date (cfs) ft (°C) (mg/L) (µS/cm) pH* 100mL) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)** .» (mg/L) (mg/L) (mg/L) (NTU) (mg/L) (mg/L) 07/19/17 11:30 14.1 8.08 164.9 6.3 46 NS 55.8 NS NS NS NS NS NS <2 <0.0012 0.8600 0.125 0.10 0.0007 0.0006 J 0.00006 <0.000005 0.005 0.003 2 NN 123 37.0 1.86 NS NS 07/19/17 11:31 NR NR NR NR 79 NS 55.6 NS NS NS NS NS NS <2 <0.0012 0.8500 0.129 0.10 0.0001 0.0006 J 0.00004 0.00002 J 0.003 0.003 2.5 NN 122 44.0 NR NS NS 08/17/17 12:35 ND 15.1 5.56 78.0 7.1 172 59.00 54.4 6.6 13.1 5.26 2.4 7.78 9.100 <2 0.0100 0.8600 0.114 0.11 0.0020 0.0009 J<0.0000067<0.000005 0.002 J 0.002 J <2 NN 127 30.0 1.29 1.35 1.42 08/17/17 12:36 NR NR NR NR NR 173 55.90 52.8 6.7 6.7 5.12 2.4 7.55 9.200 <2 0.0200 0.8600 0.113 0.11 0.0009 J 0.0009 J<0.0000067 0.00004 J 0.001 J 0.001 J <2 NN 128 28.0 NR 1.29 1.37 09/12/17 10:37 1.6 0.90 15.0 7.22 116.1 7.0 54 NS 71.1 NS NS NS NS NS NS 2.0000 0.0200 0.5700 0.276 0.11 0.0020 0.0009 J 0.00008 J 0.00002 J 0.003 0.009 4 NN 143 33.0 4.67 NS NS 09/12/17 10:38 NR NR NR NR NR NR 50 NS 74.9 NS NS NS NS NS NS 2.0000 0.0200 0.5100 0.250 0.11 0.0010 J 0.0006 J 0.00010 J <0.0005 0.003 0.002 J 11.5 NN 140 33.0 NR NS NS 10/24/17 12:40 5.3 1.08 12.8 9.56 154.2 7.3 219 NS 54.4 NS NS NS NS NS NS <2 <0.0012 1.0600 0.091 0.07 0.0010 J 0.0013 J 0.00010 J 0.00006 J 0.007 0.006 2 NN 124 36.0 3.46 NS NS 10/24/17 12:41 NR NR NR NR NR NR 117 NS 54.5 NS NS NS NS NS NS <2 <0.0012 1.0600 0.091 0.07 0.0014 J 0.0014 J 0.00010 J 0.00006 J 0.007 0.007 2 NN 124 50.0 NR NS NS 11/14/17 11:40 8.8 1.30 10.5 7.64 148.9 7.1 260 NS 50.2 NS NS NS NS NS NS <2 <0.0012 0.6800 0.094 0.07 0.0020 0.0020 0.00040 J 0.00006 J 0.014 0.011 3.5 NN 113 35.0 9.18 NS NS 11/14/17 11:41 NR NR NR NR NR NR 291 NS 47.8 NS NS NS NS NS NS <2 0.0100 0.6800 0.111 0.07 0.0014 J 0.0020 0.00030 J 0.00004 J 0.011 0.010 3 NN 113 38.0 NR NS NS 12/12/17 12:20 3.9 1.00 8.0 8.22 146.6 8.0 65 55.60 51.2 5.6 12.7 4.74 2.2 6.76 8.800 <2 0.0200 0.9800 0.092 0.07 0.0010 J 0.0003 J 0.00010 J 0.00003 J 0.009 0.008 5.5 NN 120 35.0 2.49 1.5 1.48 12/12/17 12:21 NR NR NR NR NR NR 46 54.40 59.6 5.6 15.0 5.38 4.0 9.67 8.800 <2 0.0200 0.9700 0.087 0.07 0.0010 J 0.0003 J 0.00005 J 0.00003 J 0.009 0.008 2 NN 122 26.0 NR 1.44 1.47 01/18/18 12:15 9.7 1.22 9.5 10.67 120.2 7.0 687 39.30 42.9 5.6 10.9 3.80 1.7 5.84 7.000 <2 0.0200 0.8100 0.096 0.04 0.0028 0.0014 J 0.00050 0.00004 J 0.017 0.010 6.5 NN 96 28.0 13.2 2.74 2.69 01/18/18 12:16 NR NR NR NR NR NR 649 39.30 43.0 5.5 11.0 3.76 1.8 5.97 7.200 <2 0.0200 0.8100 0.094 0.04 0.0026 0.0014 J 0.00050 0.00006 J 0.017 0.010 7 NN 99 26.0 NR 2.7 2.78 02/15/18 10:30 3.1 1.06 8.6 11.19 135.0 6.9 119 NS 50.6 NS NS NS NS NS NS <2 <0.0012 0.9000 0.099 0.05 0.0011 0.0008 J 0.00016 J 0.00002 J 0.007 0.006 3 NN 112 30.0 5.04 NS NS 02/15/18 10:31 NR NR NR NR NR NR 105 NS 49.8 NS NS NS NS NS NS <2 <0.0012 0.8800 0.091 0.05 0.0010 J 0.0010 J 0.00004 J 0.00002 J 0.008 0.007 3 NN 104 19.0 NR NS NS 03/13/18 10:54 22.3 1.60 10.5 14.67 68.4 6.9 378 NS 29.9 NS NS NS NS NS NS 7.0000 0.0900 0.2900 0.683 0.04 0.0200 0.0042 0.00730 0.00005 J 0.183 0.048 213 NN 78 45.0 142 NS NS 03/13/18 10:55 NR NR NR NR NR NR 613 NS 29.8 NS NS NS NS NS NS 8.0000 0.0900 0.3000 0.588 0.03 0.0200 0.0042 0.00690 0.00004 J 0.176 0.042 204 NN 88 51.0 NR NS NS 04/17/18 12:00 10.4 1.22 10.4 10.97 132.1 6.9 >2420 44.90 48.3 6.1 12.2 4.33 1.6 6.72 7.200 <2 0.0100 0.8900 0.075 0.05 0.0012 J 0.0009 J 0.00023 J 0.00004 J 0.008 0.007 3 NN 111 34.0 7.09 2.51 2.58 04/17/18 12:01 NR NR NR NR NR NR 2420 42.20 47.1 6.1 11.9 4.22 1.7 6.60 7.300 <2 0.0100 0.8800 0.072 0.04 0.0016 J 0.0008 J 0.00026 J 0.00004 J 0.013 0.007 4 NN 111 26.0 NR 2.49 2.69 05/16/18 10:50 3.9 0.90 12.8 7.98 129.7 6.6 222 NS 51.1 NS NS NS NS NS NS <2 0.0200 0.9000 0.103 0.08 0.0010 J 0.0008 J 0.00021 J 0.00003 J 0.005 0.006 2.5 NN 112 27.0 3.66 NS NS 05/16/18 10:51 NR NR NR NR NR NR 345 NS 49.0 NS NS NS NS NS NS <2 0.0200 0.9100 0.106 0.08 0.0010 J 0.0007 J 0.00015 J 0.00002 J 0.007 0.004 <2 NN 111 29.0 NR NS NS 06/20/18 12:05 5.5 0.98 15.3 8.30 148.6 6.6 291 NS 56.2 NS NS NS NS NS NS <2 0.0100 0.6300 0.108 1.16 0.0009 J 0.0013 J 0.00003 J <0.00008 0.008 0.031 <2 NN 115 35.0 3.8 NS NS 06/20/18 12:06 NR NR NR NR NR NR 248 NS 58.6 NS NS NS NS NS NS <2 0.0100 0.6200 0.109 0.07 0.0009 J 0.0010 J 0.00002 J <0.00008 0.008 0.015 <2 NN 113 26.0 NR NS NS FY12-13 FY1617MAX ND ND 15.9 12.40 191.6 8.7 2076 87.5 86.0 5.9 18.0 8.9 2.80 8.95 11.0 5.4 0.12 1.70 1.850 0.36 0.0115 0.0044 0.00850 0.00057 0.110 0.060 254 165 120 185.00 3.20 2.97 FY1213_FY1617 QUARTILE 3 ND ND 14.3 9.29 155.2 7.4 208 61.0 59.6 5.7 16.6 7.4 2.64 8.13 7.9 2.3 0.07 0.90 0.133 0.13 0.0027 0.0020 0.00023 0.00010 0.015 0.010 15 125 42 6.11 2.61 2.43 FY1213_FY1617 AVE ND ND 11.7 8.26 139.0 7.1 219 53.6 56.1 5.0 14.0 5.8 2.25 6.96 6.9 2.4 0.04 0.81 0.156 0.11 0.0022 0.0015 0.00057 0.00010 0.016 0.010 29 113 36 9.16 2.19 2.20 FY1213_FY1617 MEDIAN ND ND 12.8 7.99 143.8 7.0 68 53.5 54.8 5.4 14.9 5.7 2.36 7.86 7.0 2.1 0.03 0.81 0.107 0.11 0.0015 0.0012 0.00017 0.00007 0.009 0.008 4 112 35 4.26 2.09 2.10 FY1213_FY1617 1ST QUARTILE ND ND 9.6 7.05 133.2 6.8 33 46.8 50.5 5.0 13.8 4.9 2.06 6.86 6.0 2.0 0.02 0.68 0.093 0.08 0.0010 0.0008 0.00008 0.00005 0.005 0.005 3 105 28 3.02 1.84 1.93 FY1213_FY1617 MIN ND ND 5.4 5.02 12.1 6.4 8 8.2 22.4 2.2 6.0 1.8 1.26 2.34 2.6 1.0 0.01 0.31 0.054 0.05 0.0004 0.0006 0.00005 0.00002 0.002 0.001 2 13 15 1.32 1.20 1.65 FY1718 MAX 22.3 1.60 15.3 14.67 164.9 8.0 2420 57.5 73.0 6.7 13.9 5.2 3.06 8.22 9.2 7.5 0.09 1.06 0.636 0.62 0.0200 0.0042 0.00710 0.00006 0.180 0.045 209 142 48 142.00 2.72 2.74 FY1718 QUARTILE 3 9.5 1.22 14.3 10.75 148.7 7.1 337 55.6 55.5 6.2 12.5 5.1 2.57 7.80 8.9 <2 0.02 0.89 0.117 0.10 0.0016 0.0014 0.00027 0.00005 0.011 0.010 5 123 38 7.61 2.56 2.66 FY1718 AVERAGE 7.4 1.13 11.9 9.17 128.6 7.0 420 48.8 51.6 6.0 11.7 4.6 2.22 7.11 8.1 <2 0.02 0.78 0.158 0.12 0.0029 0.0013 0.00073 0.00004 0.022 0.011 20 115 33 16.48 2.00 2.06 FY1718 MEDIAN 5.4 1.07 11.7 8.26 133.6 6.9 221 49.3 51.9 5.9 11.5 4.7 2.08 7.16 8.0 <2 0.01 0.86 0.104 0.07 0.0013 0.0009 0.00010 0.00004 0.008 0.007 3 114 31 4.24 1.99 2.06 FY1718 QUARTILE 1 3.9 0.99 10.2 7.90 119.2 6.8 100 42.5 48.7 5.6 10.7 4.2 1.73 6.47 7.2 <2 <0.0012 0.67 0.094 0.05 0.0010 0.0008 0.00007 0.00002 0.006 0.005 2 110 29 3.22 1.43 1.46 FY1718 MIN 1.6 0.90 8.0 5.56 68.4 6.3 52 39.3 29.9 5.6 9.9 3.8 1.66 5.91 7.1 <2 <0.0012 0.30 0.074 0.04 0.0004 0.0003 <0.0000067 0.00002 0.002 0.002 1 83 25 1.29 1.32 1.40 SUMMER SEAS CONC 4.1 0.97 14.2 7.8 131.92 6.8 168 57.5 57.4 6.7 9.9 5.2 2.41 7.67 9.2 <2 0.01 0.81 0.135 0.18 0.0011 0.0009 0.00007 0.00003 0.005 0.007 3 124 34 3.12 1.32 1.40 WINTER SEAS CONC 9.7 1.23 9.6 10.6 125.20 7.1 671 46.0 45.9 5.8 12.3 4.4 2.16 6.93 7.7 2.1 0.02 0.76 0.182 0.05 0.0046 0.0016 0.00140 0.00004 0.039 0.014 38 106 33 29.83 2.23 2.28 Notes: * pH hold time in March was exceeded; **Total and Diss Zn in August 2017 are estimated concentrations; J-Estimated result(between the method reporting limit and method detection limit); NN-Parameter not accredited under NELAP for the analytical method used; ND-No Data; NA-No Applicable; NS-Not Sampled;<,> -Result at method reporting limit shown Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 17 Table B-4 Boones Ferry Creek at Bryant Rd, Instream Monitoring Results, FY17-18 Staff Water Specific E.coli Alkalinity Hardness NH3,as NO3, PO4,as Diss Zn Q Gauge, Temp DO Conduct (MPN/ as CaCO3 as CaCO3 CL2 Ca Mg K Na SO4 BODS N as N Total P P Total Cu Diss Cu Total Pb Diss Pb Total Zn (mg/L) TSS TDS TVS Turbidity TOC DOC Date (cfs) ft (°C) (mg/L) (µS/cm) pH* 100mL) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) ** (mg/L) (mg/L) (mg/L) (NTU) (mg/L) (mg/L) 07/19/17 12:05 NA 14.1 10.0 146.50 6.9 6 NS 69.6 NS NS NS NS NS NS <2 <0.0012 2.82 0.102 0.10 0.0001 0.0006 J 0.00006 <0.000005 0.010 0.008 <2 NN 171 44 7.24 NS NS 08/17/17 13:15 <0.1 NA 15.4 8.2 212.50 7.2 8 61.0 66.8 8.8 16.2 6.4 4.13 9.85 15.0 <2 0.02 2.98 0.096 0.11 0.0008 J 0.0007 J<0.0000067 0.00002 J 0.008 0.009 <2 NN 177 45 2.26 0.98 1.03 09/12/17 11:00 0.1 NA 15.7 9.8 51.80 7.1 8 NS 64.7 NS NS NS NS NS NS <2 <0.0012 2.44 0.134 0.11 0.0030 0.0006 J 0.00030 J <0.0005 0.011 0.002 18 NN 162 32 1.64 NS NS 10/24/17 13:45 1.7 NA 13.6 9.0 139.90 6.9 70 NS 48.9 NS NS NS NS NS NS <2 0.03 0.17 0.100 0.09 0.0024 0.0023 0.00008 J 0.00007 J 0.017 0.017 3 NN 120 45 1.93 NS NS 11/14/17 12:15 2.1 NA 11.2 7.1 127.00 6.8 47 NS 39.2 NS NS NS NS NS NS <2 0.02 1.29 0.108 0.08 0.0030 0.0030 0.00030 J 0.00005 J 0.020 0.018 3 NN 104 31 2.18 NS NS 12/12/17 13:00 2.4 NA 9.0 7.8 195.20 8.1 11 47.5 65.0 8.6 14.5 7.0 1.27 7.67 13.9 <2 <0.0012 4.75 0.147 0.09 0.0070 0.0007 J 0.00200 <0.000018 0.052 0.021 <2 NN 156 39 2.67 1.23 1.31 01/18/18 13:20 2.2 NA 10.1 9.3 145.40 6.7 44 34.6 47.0 6.8 11.6 4.4 3.40 7.32 9.8 <2 <0.0012 9.88 0.094 0.07 0.0032 0.0015 J 0.00070 0.00005 J 0.025 0.016 11 NN 114 30 10.22 1.71 1.66 02/15/18 11:35 1.9 NA 9.3 9.8 153.80 6.8 17 NS 61.0 NS NS NS NS NS NS <2 <0.0012 4.79 0.117 0.09 0.0140 J 0.0012 J 0.00005 J <0.000018 0.026 0.026 <2 NN 158 37 3.50 NS NS 03/13/18 11:36 3.6 NA 10.4 13.1 103.90 6.8 517 NS 34.5 NS NS NS NS NS NS <2 0.06 1.39 0.138 0.09 0.0048 0.0034 0.00060 0.00009 J 0.030 0.028 10 NN 93 28 16.30 NS NS 04/17/18 13:15 1.8 NA 10.9 9.1 169.60 6.6 15 43.2 56.4 7.0 13.9 5.3 3.88 9.11 10.9 <2 <0.0012 3.53 0.085 0.08 0.0014 J 0.0011 J 0.00009 J 0.00001 J 0.018 0.017 2 NN 154 49 4.81 1.94 1.79 05/16/18 12:00 0.3 NA 13.2 8.4 190.50 6.7 124 NS 67.0 NS NS NS NS NS NS <2 0.01 3.49 0.125 0.12 0.0015 J 0.0012 J 0.00012 J 0.00002 J 0.020 0.019 3 NN 161 46 2.58 NS NS 06/20/18 13:00 0.1 NA 13.9 8.6 196.80 6.7 184 NS 73.3 NS NS NS NS NS NS <2 0.02 2.82 0.111 0.09 0.0011 J 0.0010 J 0.00006 J <0.00008 0.013 0.020 <2 NN 164 48 2.48 NS NS FY1213_FY1617 Max ND NA 16.1 12.2 219.50 8.6 1046 87.0 96.0 39.0 25.0 7.4 5.10 14.00 17.0 51.0 0.04 6.20 1.000 0.25 0.0130 0.0041 0.00660 0.00010 0.120 0.042 100 290 160 38.70 3.20 8.60 FY1213_FY1617 3rd Quartile ND NA 14.8 8.9 195.85 7.4 55 62.0 69.3 9.3 18.8 7.1 4.70 11.00 14.3 4.0 0.03 4.02 0.154 0.14 0.0030 0.0021 0.00060 0.00007 0.021 0.018 29 172 55 4.20 1.90 2.58 FY1213_FY1617 Mean ND NA 12.4 8.3 173.09 7.2 78 52.3 62.5 11.6 16.2 5.7 4.00 9.36 11.5 12.6 0.02 3.41 0.171 0.12 0.0030 0.0015 0.00068 0.00005 0.020 0.015 20 154 48 4.84 2.01 3.04 FY1213_FY1617 Median ND NA 13.3 8.2 181.20 7.1 21 52.0 62.0 8.2 16.6 6.2 4.20 9.85 12.2 3.0 0.02 3.36 0.125 0.12 0.0023 0.0013 0.00015 0.00004 0.016 0.014 10 160 45 2.30 1.88 1.87 FY1213_FY1617 1st Quartile ND NA 10.4 7.6 158.73 6.9 9 41.0 57.0 6.4 14.3 5.0 3.80 8.25 9.4 2.6 0.02 2.70 0.106 0.10 0.0014 0.0009 0.00006 0.00003 0.012 0.012 4 140 37 1.62 1.67 1.65 FY1213_FY1617 Min ND NA 3.3 2.6 69.80 6.5 1 15.6 23.3 2.5 5.9 2.1 1.96 3.36 4.4 2.2 0.01 1.21 0.050 0.04 0.0009 0.0006 0.00003 0.00001 0.006 0.005 2 10 17 0.84 1.60 1.50 FY1718 Max 3.6 NA 15.7 13.1 212.50 8.1 517 61.0 73.3 8.8 16.2 7.0 4.13 9.85 15.0 <2 0.06 9.88 0.147 0.12 0.0140 0.0034 0.00200 0.00025 0.052 0.028 18 177 49 16.30 1.94 1.79 FY1718 3rd Quartile 2.1 NA 14.0 9.8 191.68 7.0 84 50.9 66.9 8.7 14.9 6.5 3.94 9.30 14.2 <2 0.02 3.84 0.127 0.10 0.0036 0.0017 0.00038 0.00006 0.025 0.020 5 163 45 5.42 1.77 1.69 FY1718 Mean 1.5 NA 12.2 9.2 152.74 6.9 88 46.6 57.8 7.8 14.1 5.8 3.17 8.49 12.4 <2 0.01 3.36 0.113 0.09 0.0035 0.0014 0.00036 0.00005 0.021 0.017 4 145 40 4.82 1.47 1.45 FY1718 Median 1.8 NA 12.2 9.0 150.15 6.8 31 45.4 62.9 7.8 14.2 5.8 3.64 8.39 12.4 <2 0.01 2.90 0.110 0.09 0.0027 0.0012 0.00011 0.00003 0.019 0.018 2 157 42 2.63 1.47 1.49 FY1718 1st Quartile 0.2 NA 10.3 8.3 136.68 6.7 10 41.1 48.4 7.0 13.3 5.1 2.87 7.58 10.6 <2 <0.0012 2.18 0.099 0.09 0.0013 0.0007 0.00006 0.00001 0.013 0.014 <2 119 32 2.24 1.17 1.24 FY1718 Min 0.1 NA 9.0 7.1 51.80 6.6 6 34.6 34.5 6.8 11.6 4.4 1.27 7.32 9.8 <2 <0.0012 0.17 0.085 0.07 0.0001 0.0006 <0.0000067<0.000005 0.008 0.002 <2 93 28 1.64 0.98 1.03 Summer Seas Conc 0.4 NA 14.3 9.0 156.33 6.9 67 61.0 65.1 8.8 16.2 6.4 4.13 9.85 15.0 <2 0.01 2.45 0.111 0.10 0.0015 0.0011 0.00010 0.00007 0.013 0.013 4 159 43 3.02 0.98 1.03 Winter Seas Conc 2.3 NA 10.2 9.4 149.15 7.0 109 41.8 50.5 7.5 13.3 5.6 2.85 8.03 11.5 <2 0.01 4.27 0.115 0.08 0.0056 0.0018 0.00062 0.00004 0.029 0.021 5 130 36 6.61 1.63 1.59 Notes: *pH hold time in March was exceeded; **Diss Zn in Sept 2017 are estimated concentrations; 1-Estimated result(between the method reporting limit and method detection limit); NN-Parameter not accredited under NELAP for the analytical method used; ND-No Data; NA-Not Applicable;NS- Not Sampled;<,> -Result at method reporting limit shown Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 18 Table B-5 Ball Creek bel Kruse Way, Instream Monitoring Results, FY17-18 Staff Water Specific E.coli Alkalinity, Hardness, NH3, NO3, PO4, Q Gauge, Temp DO Conduct (MPN/ as CaCO3 as CaCO3 CL2 Ca Mg K Na 504 BOD5 as N as N Total P as P Total Cu Diss Cu Total Pb Diss Pb Total Zn Diss Zn TSS TDS TVS Turbidity TOC DOC Date (cfs) ft (°C) (mg/L) (µS/cm) pH* 100mL) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (NTU) (mg/L) (mg/L) 07/19/17 13:00 ND NA 17.5 8.32 287.9 7.57 219 NS NS NS NS NS NS NS NS <2 0.04 0.19 0.109 0.06 0.0009 0.0010 J 0.00020 <0.000005 0.009 0.003 6 NN 187 36 8.18 NS NS 08/17/17 14:35 0.3 NA 19.2 6.15 294.3 7.60 167 116.0 123.2 11.3 28.9 12.4 1.97 11.50 11.5 <2 0.05 0.13 0.121 0.06 0.0020 0.0020 0.00004 J 0.00001 J 0.007 0.003 4 NN 198 32 6.95 5.47 5.25 09/12/17 11:55 0.3 NA 17.9 7.11 259.6 7.85 727 NS 105.0 NS NS NS NS NS NS <2 0.04 0.18 0.502 0.07 0.0030 0.0010 J 0.00030 J <0.000018 0.021 0.005 20 NN 172 33 29.10 NS NS 10/24/17 15:15 1.7 NA 12.8 9.14 234.8 7.50 101 NS 90.4 NS NS NS NS NS NS <2 0.03 1.07 0.069 0.04 0.0030 0.0026 0.00020 J 0.00010 J 0.013 0.012 4 NN 166 58 4.25 NS NS 11/14/17 13:24 0.6 NA 10.7 7.22 168.4 7.30 112 NS 60.8 NS NS NS NS NS NS <2 0.02 0.66 0.086 0.05 0.0030 0.0030 0.00020 J 0.00006 J 0.029 0.027 3 NN 120 33 3.96 NS NS 12/12/17 13:50 1.4 NA 4.9 8.67 191.7 8.20 33 107.0 98.5 8.4 23.6 9.6 2.35 9.46 12.8 <2 0.05 0.49 0.063 0.03 0.0010 J <0.00022<0.0000067<0.000018 0.025 <0.00027 2 NN 171 27 5.57 2.15 3.04 01/18/18 14:10 3.2 NA 9.6 10.25 144.3 7.23 199 51.1 55.8 6.0 13.6 5.3 1.50 5.76 7.6 <2 0.03 0.55 0.072 0.02 0.0033 0.0022 0.00030 J 0.00004 J 0.026 0.022 7 NN 103 25 13.00 3.09 2.88 02/15/18 13:10 0.9 NA 7.5 10.28 230.4 7.36 276 NS 102.5 NS NS NS NS NS NS <2 0.04 0.52 0.073 0.02 0.0016 J 0.0011 J <0.000055 0.00002 J 0.075 0.076 3 150 18 5.84 NS NS 03/13/18 12:40 7.6 NA 11.0 13.57 113.1 7.10 866 NS 45.6 NS NS NS NS NS NS 4.0 0.05 0.25 0.140 0.02 0.0097 0.0047 0.00110 0.00005 J 0.037 0.017 25 NN 81 37 25.90 NS NS 04/17/18 14:55 2.4 NA 11.3 9.97 186.2 7.21 31 67.2 81.5 7.1 19.8 7.8 1.70 8.38 9.5 <2 0.03 0.55 0.061 0.03 0.0026 0.0018 J 0.00017 J 0.00030 J 0.012 0.009 3 NN 133 26 5.79 3.98 3.68 05/16/18 13:08 1.0 NA 15.5 6.47 267.1 7.40 276 NS 113.4 NS NS NS NS NS NS <2 0.06 0.24 0.139 0.05 0.0018 J 0.0013 J 0.00019 J 0.00003 J 0.009 0.004 4 NN 183 41 9.51 NS NS 06/20/18 14:45 0.6 NA 20.6 5.68 252.7 7.16 99 NS 110.0 NS NS NS NS NS NS <2 0.07 0.14 0.220 0.07 0.0021 0.0019 J 0.00003 J <0.00008 0.008 0.017 4 NN 171 40 8.62 NS NS FY1213_FY1617 Max ND NA 21.0 12.95 314.8 12.20 1200 130.0 150.0 8.9 27.0 12.0 2.73 11.00 19.0 3.1 0.54 2.00 0.650 0.20 0.0071 0.0056 0.00200 0.00040 0.049 0.030 38 210 140 68.30 5.60 5.10 FY1213_FY1617 3rd Quartile ND NA 16.7 9.28 254.2 7.60 219 110.0 110.0 8.1 26.3 11.0 2.28 10.88 15.3 3.0 0.07 0.63 0.160 0.12 0.0039 0.0027 0.00032 0.00008 0.021 0.014 10 180 47 9.26 4.54 4.26 FY1213_FY1617 Average ND NA 13.1 7.58 216.0 7.56 214 90.0 93.3 6.9 21.5 8.8 2.13 8.70 10.2 2.3 0.07 0.48 0.146 0.09 0.0029 0.0019 0.00037 0.00008 0.016 0.010 8 157 42 8.31 4.14 3.81 FY1213_FY1617 Median ND NA 14.0 7.42 229.7 7.51 105 95.0 100.0 7.7 25.0 10.4 2.10 10.15 8.0 2.2 0.04 0.43 0.103 0.09 0.0023 0.0016 0.00015 0.00006 0.013 0.009 5 160 40 6.35 3.92 3.77 FY1213_FY1617 1st Quartile ND NA 10.2 5.78 196.7 7.33 49 77.0 80.5 6.2 19.8 7.5 2.00 7.63 5.2 2.1 0.03 0.24 0.072 0.06 0.0016 0.0010 0.00010 0.00004 0.010 0.006 4 133 32 4.80 3.73 3.29 FY1213_FY1617 Minimum ND NA 4.4 2.79 75.1 6.94 10 19.8 29.3 3.1 7.6 2.5 1.57 2.99 4.3 1.0 0.02 0.06 0.038 0.03 0.0009 0.0006 0.00004 0.00001 0.004 0.002 2 73 13 1.13 3.00 2.70 FY1718 Max 7.6 NA 20.6 13.57 294.3 8.20 866 116.0 123.2 11.3 28.9 12.4 2.35 11.50 12.8 4.0 0.07 1.07 0.502 0.07 0.0097 0.0047 0.00110 0.00030 0.075 0.076 25 198 58 29.10 5.47 5.25 FY1718 Quartile 3 2.1 NA 17.6 10.04 261.5 7.58 276 109.2 110.9 9.1 24.9 10.3 2.07 9.97 11.8 <2 0.05 0.55 0.139 0.06 0.0030 0.0023 0.00023 0.00005 0.027 0.018 6 175 38 10.38 4.35 4.07 FY1718 Ave 1.8 NA 13.2 8.57 219.2 7.46 259 85.3 92.0 8.2 21.5 8.8 1.88 8.78 10.4 <2 0.04 0.41 0.138 0.04 0.0028 0.0019 0.00023 0.00006 0.023 0.016 7 153 34 10.56 3.67 3.71 FY1718 Median 1.0 NA 12.1 8.50 232.6 7.38 183 87.1 100.5 7.8 21.7 8.7 1.84 8.92 10.5 <2 0.04 0.37 0.098 0.05 0.0024 0.0019 0.00020 0.00004 0.017 0.011 4 169 33 7.57 3.54 3.36 FY1718 Quartile 1 0.6 NA 10.4 6.95 181.8 7.23 101 63.2 76.3 6.8 18.2 7.2 1.65 7.73 9.0 <2 0.03 0.19 0.071 0.03 0.0018 0.0011 0.00004 0.00001 0.009 0.004 3 130 27 5.74 2.86 3.00 FY1718 Min 0.3 NA 4.9 5.68 113.1 7.10 31 51.1 45.6 6.0 13.6 5.3 1.50 5.76 7.6 <2 0.02 0.13 0.061 0.02 0.0009 0.0001 0.00000 0.00000 0.007 0.000 2 81 18 3.96 2.15 2.88 Summer Seas Conc 0.8 NA 17.3 7.15 266.1 7.51 265 116.0 109.9 11.3 28.9 12.4 1.97 11.50 11.5 <2 0.05 0.33 0.193 0.06 0.0021 0.0016 0.00016 0.00003 0.011 0.007 7 180 40 11.10 5.47 5.25 Winter Seas Conc 2.7 NA 9.2 10.0 172.35 7.4 253 75.1 74.1 7.2 19.0 7.6 1.85 7.87 10.0 <2 0.04 0.50 0.083 0.03 0.0035 0.0022 0.00030 0.00008 0.034 0.025 7 126 28 10.01 3.07 3.20 Notes: * pH hold time in March was exceeded; J-Estimated result(between the method reporting limit and method detection limit);NN-Parameter not accredited under NELAP for the analytical method used;ND-No Data; NA-Not Applicable;NS-Not Sampled;<,> -Result at method reporting limit shown Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 19 Table B-6 Carter Creek abv Bangy Rd, Instream Monitoring Results, FY17-18 Staff Water Specific E.coli Alkalinity Hardness, NH3, NO3, PO4, Total Q Gauge, Temp DO Conduct (MPN/ as CaCO3 as CaCO3 CL2 Ca Mg K Na 504 BOD5 as N as N Total P as P Total Cu Diss Cu Total Pb Diss Pb Zn Diss Zn TSS TDS TVS Turbidity TOC DOC Date (cfs) ft (°C) (mg/L) (µS/cm) pH 100mL) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (NTU) (mg/L) (mg/L) 07/19/17 12:40 ND NA 14.6 11.12 205.4 7.93 152 NS NS NS NS NS NS NS NS <2 <0.0012 0.54 0.095 0.10 0.0001 0.0001 J 0.00009 0.00002 J 0.010 0.009 3 NN 147 31 6.91 NS NS 08/17/17 14:00 0.4 NA 16.4 8.90 208.6 8.02 366 85.6 87.4 6.6 18.0 10.3 1.64 9.11 7.4 <2 0.01 0.55 0.088 0.10 0.0030 0.0020 0.00008 J 0.00003 J 0.009 0.007 <2 NN 155 36 1.99 1.88 1.89 09/12/17 11:40 0.3 NA 15.8 10.67 223.0 8.05 1733 NS 87.9 NS NS NS NS NS NS <2 0.01 0.99 0.090 0.10 0.0030 0.0020 0.00030 J 0.00004 J 0.011 0.006 5 NN 157 34 1.64 NS NS 10/24/17 14:25 1.4 NA 13.9 11.12 180.6 7.97 148 NS 66.4 NS NS NS NS NS NS <2 <0.0012 11.09 0.061 0.06 0.0030 0.0026 0.00020 J 0.00010 J 0.019 0.018 3 NN 133 47 2.45 NS NS 11/14/17 13:00 4.3 NA 11.5 8.89 153.0 7.80 55 NS 53.3 NS NS NS NS NS NS <2 <0.0012 0.66 0.067 0.06 0.0020 0.0030 0.00020 J 0.00006 J 0.028 0.027 <2 NN 112 33 3.59 NS NS 12/12/17 13:25 1.4 NA 6.7 9.54 185.6 8.40 64 77.0 102.3 6.4 24.5 10.0 1.82 9.76 8.5 <2 0.01 0.69 0.059 0.05 0.0010 J 0.0005 J<0.0000067<0.000018 0.013 0.012 <2 NN 128 26 1.67 1.26 1.47 01/18/18 13:50 3.5 NA 9.9 11.18 119.7 7.67 816 38.8 44.6 6.0 10.9 4.2 1.15 5.84 7.5 <2 0.01 0.72 0.069 0.03 0.0036 0.0025 0.00040 J 0.00005 J 0.132 0.097 6 NN 90 24 10.50 2.46 2.41 02/15/18 12:15 1.1 NA 8.5 11.74 164.0 7.79 50 NS 65.8 NS NS NS NS NS NS <2 <0.0012 0.73 0.059 0.04 0.0014 J 0.0011 J <0.000055<0.000018 0.169 0.167 <2 NN 127 22 3.03 NS NS 03/13/18 12:16 4.3 NA 10.5 15.05 67.8 7.00 980 NS 25.6 NS NS NS NS NS NS 2.0 0.03 0.25 0.160 0.04 0.0100 0.0052 0.00150 0.00005 J 0.052 0.022 34 NN 71 30 37.00 NS NS 04/17/18 14:10 3.8 NA 11.1 11.45 150.3 7.74 35 51.0 56.9 7.7 13.9 5.4 1.29 7.92 8.9 <2 <0.0012 0.77 0.037 0.03 0.0018 J 0.0014 J 0.00012 J 0.00004 J 0.022 0.018 2 NN 120 27 5.79 2.15 2.21 05/16/18 12:40 1.8 NA 13.2 9.35 188.7 7.72 115 NS 77.1 NS NS NS NS NS NS <2 <0.0012 0.73 0.085 0.07 0.0016 J 0.0010 J 0.00015 J 0.00002 J 0.022 0.009 3 NN 141 31 4.00 NS NS 06/20/18 14:05 0.7 NA 17.1 10.27 195.7 7.64 133 NS 75.6 NS NS NS NS NS NS <2 0.01 0.56 0.112 0.08 0.0021 0.0019 0.00007 J <0.00008 0.024 0.028 4 NN 141 37 6.12 NS NS FY1213_FY1718 Maximum ND NA 17.7 14.72 222.6 8.53 2419 110.0 94.0 7.1 18.0 11.0 1.80 9.32 9.4 3.0 0.10 3.00 0.930 0.21 0.0140 0.0130 0.00250 0.01700 0.057 0.044 73 190 69 91.00 4.22 4.60 FY1213_FY1617 3rd Quartile ND NA 14.8 10.65 189.5 8.00 249 82.0 79.8 6.8 17.3 9.7 1.70 9.10 8.5 2.7 0.03 0.86 0.140 0.14 0.0047 0.0030 0.00113 0.00173 0.027 0.018 16 150 43 6.14 2.80 2.70 FY12-13_FY1617 Average ND NA 12.4 9.84 165.0 7.78 279 67.6 67.8 6.0 15.4 7.8 1.59 7.84 7.1 2.2 0.03 0.79 0.147 0.11 0.0035 0.0025 0.00067 0.00303 0.021 0.015 14 130 37 7.69 2.57 2.53 FY1213_FY1617 Median ND NA 13.3 9.95 174.1 7.87 131 71.0 70.0 6.5 16.5 8.4 1.61 8.60 6.9 2.1 0.03 0.73 0.092 0.11 0.0026 0.0020 0.00029 0.00008 0.018 0.014 8 140 38 3.53 2.35 2.25 FY1213_FY1617 1st Quartile ND NA 10.3 8.88 156.6 7.69 55 59.0 62.2 5.7 16.0 6.7 1.45 7.73 5.8 2.0 0.01 0.59 0.067 0.07 0.0016 0.0011 0.00012 0.00005 0.014 0.009 4 120 30 2.63 1.90 1.77 FY1213_FY1617 Minimum ND NA 5.3 4.58 45.6 6.04 4 14.0 20.0 3.6 8.0 2.5 1.40 3.80 4.9 0.6 0.01 0.16 0.005 0.04 0.0003 0.0008 0.00005 0.00002 0.006 0.002 2 49 13 1.03 1.80 1.60 FY1718 Maximum 4.3 NA 17.1 15.05 223.0 8.40 1733 85.6 102.3 7.7 24.5 10.3 1.82 9.76 8.9 2.0 0.03 11.09 0.160 0.10 0.0100 0.0052 0.00150 0.00010 0.169 0.167 34 157 47 37.00 2.46 2.41 FY1718 3rd Quartile 3.6 NA 14.9 11.25 198.1 7.98 479 79.2 81.1 6.9 19.6 10.1 1.69 9.27 8.6 <2 0.01 0.74 0.091 0.09 0.0030 0.0025 0.00023 0.00005 0.034 0.027 4 143 35 6.32 2.23 2.26 FY1718 Average 2.1 NA 12.4 10.77 170.2 7.81 387 63.1 68.5 6.7 16.8 7.5 1.48 8.16 8.1 <2 0.01 1.52 0.082 0.06 0.0027 0.0019 0.00026 0.00004 0.043 0.035 5 127 32 7.06 1.94 2.00 FY1718 Median 1.4 NA 12.4 10.90 183.1 7.80 141 64.0 71.0 6.5 16.0 7.7 1.47 8.52 8.0 <2 0.01 0.71 0.077 0.06 0.0021 0.0020 0.00014 0.00004 0.022 0.018 3 131 31 3.80 2.02 2.05 FY1718 1st Quartile 0.9 NA 10.4 9.49 152.3 7.71 62 48.0 56.0 6.3 13.2 5.1 1.26 7.40 7.5 <2 <0.0012 0.56 0.061 0.04 0.0016 0.0011 0.00008 0.00002 0.013 0.009 1 118 27 2.34 1.73 1.79 FY1718 Minimum 0.3 NA 6.7 8.89 67.8 7.00 35 38.8 25.6 6.0 10.9 4.2 1.15 5.84 7.4 <2 <0.0012 0.25 0.037 0.03 0.0001 0.0001 <0.0000067<0.000018 0.009 0.006 1 71 22 1.64 1.26 1.47 Summer Seasonal Conc 0.9 NA 15.2 10.24 200.3 7.89 441 85.6 78.9 6.6 18.0 10.3 1.64 9.11 7.4 <2 0.01 2.41 0.089 0.09 0.0021 0.0016 0.00010 0.00004 0.016 0.013 3 146 36 3.85 1.88 1.89 Winter Seasonal Conc 3.1 NA 9.7 11.31 140.1 7.73 333 55.6 58.1 6.7 16.4 6.5 1.42 7.84 8.3 <2 0.01 0.64 0.075 0.04 0.0033 0.0023 0.00040 0.00004 0.069 0.057 7 108 27 10.26 1.96 2.03 Notes: * pH hold time in March was exceeded; J-Estimated result(between the method reporting limit and method detection limit);NN-Parameter not accredited under NELAP for the analytical method used;ND-No Data; NA-Not Applicable;NS-Not Sampled;<,> -Result at method reporting limit shown Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 20 Table B-7 Wet Weather Results at Reese Rd and at South Shore Blvd, March 8,2018 Storm Event Precipitation=0.32 inches; Prey 24-hr Precipitation =0 Specific E.coli Alkalinity Hardness NH3,as NO3,as PO4, Water DO Conduct (MPN/ as CaCO3 (as CaCO3) BOD5 N N Total P as P Total Cu Diss Cu Total Pb Diss Pb Total Zn Diss Zn TSS TDS TVS Turbidity Sample ID Time Flow(cfs) Temp(°C) (mg/L) (µS/cm) pH 100mL) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (NTU) Reese Rd Composite Sample 12:37 NA NA NA NA NA NA 19.1 100.7 25 0.98 0.42 0.520 0.01 0.040 0.014 0.0079 0.00026 J 0.291 0.102 207 NN 155 142 NA Reese Rd Blank 12:38 NA NA NA NA NA NA <5.0 <0.01 <2 <0.0012 <0.0021 <0.0026 <0.002 0.0002 J 0.0003 J<0.0000553<0.000018<0.00047 0.0004 J <2 NN <10 <10 NA Reese Rd Grab Sample 8:30 0.26 8.5 8.29 420.9 7.5 44 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 506.0 Reese Rd Grab Blank 8:31 NA NA NA NA NA <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Reese Rd Grab Sample 10:10 0.69 9.7 6.90 212.0 7.4 104 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 308.0 Reese Rd Grab Blank 10:11 NA NA NA NA NA <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Reese Rd Grab Sample 11:19 2.41 10.0 6.91 109.1 7.4 139 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 204.0 Reese Rd Grab Blank 11:20 NA NA NA NA NA <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA South Shore Composite Sample 13:03 NA NA NA NA NA NA 22.8 37.5 3.0 0.04 1.33 0.115 0.01 0.012 0.0074 0.0010 0.00005 J 0.181 0.136 29 NN 75 31 NA South Shore Composite Sample Dup 13:04 NR NR NR NR NR NA 23.7 37.0 3.0 0.04 1.35 0.109 0.01 0.012 0.0075 0.0009 0.00004 J 0.185 0.137 27 NN 76 29 NR South Shore Grab Sample 9:11 0.89 8.6 9.37 124.9 7.6 >2420 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 9.9 South Shore Grab Sample Dup 9:12 NR NR NR NR NR >2420 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NR South Shore Grab Sample 10:30 1.60 9 9.2 110.7 7.5 1986 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 19.2 South Shore Grab Sample Dup 10:31 NR NR NR NR NR 1986 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NR South Shore Grab Sample 11:45 1.47 9.2 9.28 67.4 7.3 >2420 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 32.5 South Shore Grab Sample Dup 11:46 NR NR NR NR NR >2420 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NR Notes: J-Estimated result(between the method reporting limit and method detection limit); NN-Parameter not accredited under NELAP for the analytical method used; NA-Not Applicable;NR-Not Recorded; NS-Not Sampled;<,> -Result at method reporting limit shown Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 21 Table B-8 Wet Weather Results at Reese Rd and at South Shore Blvd, November 30, 2017 Storm Event Precipitation=0.14 Inches; Prey 24-hr Precipitation =0 Water Specific E.coli Alkalinity Hardness NH3, NO3,as Flow Temp Conduct DO (MPN/ as CaCO3 (as CaCO3) BOD5 as N N Total P PO4,as Total Cu Diss Cu Total Pb Diss Pb Total Zn Diss Zn TSS TDS TVS Turbidity Sample ID Time (cfs) (°C) (µS/cm) pH (mg/L) 100mL) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) P(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (NTU) Reese Rd Composite Sample 12:50 NA 10.3 38.6 7.2 9.87 <5.0 21.3 6 0.16 0.17 0.378 0.08 0.016 0.005 0.0040 0.00010 J 0.126 0.039 64.0 NN 68 54 111.0 Reese Rd Blank 11:15 NA NA NA NA NA <5.0 <0.01 <2 0.01 <0.0021 <0.01 <0.002 0.003 J <0.00022 <0.0000067 <0.000018 0.001 J 0.0003 J <2 NN 15 <10 ND Reese Rd Grab Blank 11:15 NR NA NA NA NA <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Reese Rd Grab Sample 11:20 0.56 9.0 73.7 7.8 10.85 >2420 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 305.0 Reese Rd Grab Sample 12:50 1.32 10.3 38.6 7.2 9.87 1203 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Reese Rd Grab Blank 12:58 NR NA NA NA NA <1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Reese Rd Grab Sample 14:30 0.3 10.3 36.6 6.5 8.74 649 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 81.9 Reese Rd Grab Blank 14:38 NR NA NA NA NA <1 NA NA NA NA i NA NA NA NA NA NA NA NA NA NA NA NA NA South Shore Composite Sample 13:30 NA 10.4 99.0 7.4 10.36 NS 26.5 33.8 <2 0.01 1.54 0.080 0.05 0.004 0.0030 0.0003 J 0.00005 J 0.023 0.018 7.5 NN 83 24 12.5 South Shore Composite Sample Dup 13:38 NR NR NR NR NR NS 25.3 33.7 <2 0.01 1.55 0.083 0.05 0.005 0.0030 0.0003 J 0.00005 J 0.023 0.019 7.5 NN 81 26 NR South Shore Grab Sample 12:15 0.74 10.1 110.7 7.5 10.10 >2420 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 26.3 South Shore Grab Sample Dup 12:25 NR NR NR NR NR >2420 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NR South Shore Composite Sample 13:30 0.76 10.4 99.0 7.4 10.4 1120 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12.5 South Shore Composite Sample Dup 13:38 NR NR NR NR NR 1300 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NR South Shore Grab Sample 15:30 0.61 10.5 112.7 7.1 9.78 328 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 7.1 South Shore Grab Sample Dup 15:38 NR NR NR NR NR 214 NA NA NA NA NA NA NA NA NA NA NA NA I NA NA NA NA NR Notes: J-Estimated result(between the method reporting limit and method detection limit); NN-Parameter not accredited under NELAP for the analytical method used; NA-Not Applicable;NR-Not Recorded; NS-Not Sampled;<,> -Result at method reporting limit shown Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 22 APPENDIX C PUBLIC OUTREACH Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 23 Appendix C.1 Regional Coalition for Clean Rivers and Streams Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 24 ik e-. 4W!.�0� #� • 4tr� P 0% 14)r- 10 REGIONAL COALITION FOR CLEAN RIVERS AND STREAMS FISCAL YEAR 2017-2018 ANNUAL REPORT SEPTEMBER 28,2018 0 PREPARED BY: 440 enviroissues RR& 4%���� STAR_ %%0 0 ■. 100 1104p Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 25 FY 2017-18 OVERVIEW The Regional Coalition for Clean Rivers and Streams(Coalition)continued its work in FY 2017-18— initiated in the mid-1990s—of delivering coordinated messages to target behaviors linked to stormwater pollution from residential sources.The Coalition used print and digital advertising,social media and direct outreach at community events to promote stormwater messaging.The Coalition also included continued participation in the Clean Rivers and Streams Forum to develop collaborative relationships among agencies within and beyond the Portland metropolitan region. Coalition participants are based in the Portland metropolitan region and include: ■ Clackamas County Water Environment Services on behalf of members of the Clackamas co- permittee group Clackamas County Service District No.1 - City of Gladstone City of Lake Oswego City of Miiwaukie City of Oregon City 7. City of West Linn - City of Wilsonville Oak Lodge Sanitary District - Surface Water Management Agency of Clackamas County • Clean Water Services(serving cities and other urban areas in Washington County) • Multnomah County • City of Gresham This report covers July 1,2017-June 30,2018.Supporting materials are included in an appendix. BACKGROUND As identified in the 2013 Strategic Plan,the mission of the Coalition is to collaborate across the Portland metropolitan region to improve watershed health by changing household behaviors,curbing polluted runoff and better connecting people with the environments in which they live and play.Coalition members leverage their collective resources to conduct community outreach,Coalition activities complement individual agency efforts to raise awareness of stormwater runoff and affect behavior change to prevent pollution and protect regional surface water quality.Coalition activities support commitments relative to state permits under the federal Clean Water Act(administered by the Oregon Department of Environmental Quality),including Total Maximum Daily Load and Municipal Separated Storm Sewer System(M54)programs,as well as compliance with the federal Endangered Species Act. Participants in the Coalition have diverse roles in conducting stormwater education and outreach.Clean Water Services,City of Gresham and Clackamas County Water Environment Services each have developed specific outreach programs for their Jurisdictions.The Clackamas co-permittee group has used the creative materials developed by the Coalition to varying degrees.Multnomah County has permit requirements related to its roads and bridges. "E" 1 Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 26 The most recent cost sharing agreement among Coalition members was executed in December 2016.As of July 2017,Coalition members will develop a scope of work and cost sharing agreement and work under the Managing Oregon Resources Efficiently Intergovernmental Agreement(MORE-IGA)for FY 2017-18 activities. REGIONAL AUDIENCE The Coalition targets behaviors from residential sources linked to stormwater pollution prevention. Information and messages used by the Coalition are intended to reach those making purchasing and management decisions about yard care,pets and auto maintenance activities—some of the most likely sources of stormwater pollution from residents,Coalition activities address a range of surface water contaminants,including nutrients and toxics from fast-releasing synthetic fertilizers and chemical pesticides applied to yards and lawns,nutrient loads from car washing soaps,metals and other toxics from vehicle maintenance(and unmaintained vehicles),E.rah from pet waste,turbidity from eroded soils and other contaminants from illicit discharges. KEY MEsSAG iS The Coalition's key messages focus on raising awareness about pollution from stormwater runoff and motivating actions to protect surface water quality through action at the household level.The key messages are: ■ Stormwater runoff is now our number one source of water pollution.When it rains,pollutants from your home,car,and garden wash into our rivers and streams. • Bacteria from uncollected dog waste washes into our rivers and streams.You can protect cur water by picking up after your pets. • Yard and garden products wash into our rivers and streams.You can protect our water by using compost and slow-release fertilizer. • Motor oil,solvents and soaps wash into our rivers and streams.You can protect our water by keeping car-Care chemicals out of storm drains, FY 2O 7-18 ACTIVITIES AND 11FSULTS Activities during the reporting period focused on continuing to implement the Coalition's existing strategic plan with messaging and outreach using The River Starts Here marketing slogan. `)TnATE4+IC PLAN IMPI_EM1=NLATION The Coalition acted on strategic plan goals as summarized below: Goal 1: Maintain a functioning Coalition The Coalition maintained the approach and activities conducted in previous years of social media posts, advertising and community events.The Coalition meets several times a year for coordination and 2 • Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 27 collaboration.The Coalition continued efforts to expand its membership to increase the impact of its public education campaign. Goal 2: Develop and adapt creative products to fulfill the Coalition's mission The Coalition continued to use collateral materials developed with The River Starts Here creative concept through newspaper and web advertising.Coalition representatives also continued to use temporary tattoos and branded T-shirts and banners to help promote clean water messages at individual outreach events held throughout the year.Clackamas Water Environment Services continues to provide a raindrop costume/prop inspired by The River Starts Here logo which is used to bring awareness in a light-hearted way at community events. Figure 1:Raindrop costume at The Big float 2017 photobooth .10,1 . A ... STA.2 PN A C ` N RIVER STARTS The Big Float 2017-#theriverstartshere • Goal 3: Practice adaptive management The Coalition is committed to leveraging available resources to maximize impact while setting the stage for future collaboration among agencies.The Coalition continues to conduct interactive outreach at community events and uses social media to broaden the Coalition's reach and determine any changes in messaging. RIVER 3 STARTS Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 28 MESSAGING AND OUTREACH ADVERTISING Backyard Habitat Certification event boosted post The Coalition boosted a post promoting an Clean Rivers and Streams .II,um Pape upcoming event hosted by the City of .r:b/•L-.�.: c+ Gresham.The event showcased backyard Gresham residents:wan!to support our local pollinators and bring py Into habitats for pollinators with a focus on native your yard?Enroll in the Backyard Habitat program by Friday April Mh and receive 535 in native plants--available for puce upon EARTHDAY Apnl281r1W plants. https:r+grestfamoregen goviback}art hall hat. The boosted post targeted men and women rs ,,, who are at least 30 years old,live in Gresham \ / `� and are identified by Facebook as having two A� * 4, interests related to the event. ., k,‘,,,,..,,, _. Metrics summary • Cost $13 1 -. t Reach 1,018 --. CPM' $12.77 0 • - Engagements 108 Link Clicks 12 CTR' Q 412% Backyard Habitat Certification I City of Gresham the City or Gresham nos partnered'NO the Audubon society or Portland 79 Reactions 5 Comments Sus Snares Figure 2:The boosted post on Facebook 'CPM is cost per 1,000 impressions. CTR is click-through-rate. RIVER 4 STARTS Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 29 Display ads in Pamplin Community Newspapers Print ads were placed in Pamplin Community Newspapers in the Coalition area to promote The River Starts Here messaging.A summary of publications the print ads appeared in is shown in Table 3. Tablet Print advertisement placements by month Pamplin Community Circulation Readership "ar Irirr� ';' Newspapers yr�i4 x j '°�ii June 2017 COrf,� Forest Grove News-Times 5,000 12,000 THE Beaverton Valley Times 7,000 16,800 RIVER Hillsboro Tribune 10,000 24,000 STARTS4- July 2017 Wilsonville Spokesman 3,500 8,400 Tigard/Tualatin Times 5,250 12,600 Summer River.Events Clackamas Review 17,000 40,800 m.Ng Fbnt en eM NlVunNH R..r August2017 :1404.'="`" _ lour sa`M..z Yq In—. West Linn Tidings 3,900 9,360 Clackamas Review 17,000 40,800 lipcosi September2017 Moiaila Pioneer 3,500 8,400 +.0.- .... Clackamas Review 17,000 40,800 aft‘vonwiwi Figure 3:Pamplin print ad Digital ads on the Clackamas Reviews'website A digital ad was placed on the Clackamas Review's website via Pamplin Media from June to September 2017 to promote The River Starts Here messaging. 5- Summer River Eve ip Clackamas Down the River A Sunday, Sept. 9 :- .1, Cleanup Figure 4:Pamplin web ad RIVER 5 STARTS Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 30 CAMPAIGN SUMMARY Overall,the 2017-18 campaign focused on reaching as many of the Coalition's defined regional audience as possible and promoting in-person events that allow high-quality,interactive outreach. Table 2:2017-18 Coalition digital and print ad placement and investment !ri Outlet Investor Digital Facebook $13 Digital Pamplin website $1,180 Print Pamplin newspapers $3,180 TOTAL $4,373 COMMUNITY EVENTS AND AGENCY COLLABORATION Representatives of member agencies promoted Coalition messages throughout the fiscal year and produced collateral materials emphasizing The River Starts Here brand and messages to support community events. Big Float 2017 Four members of the Coalition partnered 4 a .� �I ,d with the Human Access Project to help put iN\ ,, x �f.••r r4to►.h.467r�'��rl�,�`��4 t,�� r•' on The Big Float on July 15,2017.Hundreds ,� Tow �_� ' of participants attended the festivities. ' �� � - 'A The Coalition and the Human Access Project partnered to host a photobooth."The River •� ' Starts Here"temporary tattoos and the ` ' �' � ' " water drop costume drove traffic to the r-— photobooth.The Watershed Council held a � ` " =` _ - table at the event as well. �� • -y - - The Coalition also partnered with Verde,an environmental justice nonprofit that serves low-income communities in Portland. Tickets for free admission was offered to Figure 5:The Big Float 2017 Verde's network as part of the Coalition's clean water advocacy efforts. The City of Gresham,a Coalition member,developed a participant survey for the event and tabulated the results.The survey included demographic and geographic questions.The Coalition and its partners gathered this information to understand where Big Float participants live. 1R� 6 Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 31 Clean Rivers and Streams Forum The Clean River and Streams Forum was conceived as part of a series of workshops with goals to create a vision for a more geographically-broad{statewide)collaboration,create a formal organizational structure and operational model,and begin planning and developing creative campaigns across a larger geographic area. The Clean Rivers Coalition hosted the FY 2016-17 Forums to create a statewide partnership for stormwater jurisdictions and water-related nonprofits in Oregon.Its mission is,"Building the bridge between clean water and healthy communities through education and engagement."The group's steering committee consists of representatives from the cities of Keizer,Gresham,Salem,and Eugene, along with Multnomah County,Marion County,the Oregon Environmental Council and Clean Water Services.Two Regional Coalition members are on this steering committee. Clean River Forums were held in FY 2017-18.The forums were attended by 50 participants in the fall and 80 participants in the spring to discuss goals for a statewide outreach campaign and priority pollutants. The November forum provided more focused direction in developing a strategic plan for the statewide outreach campaign.The campaign will be designed to encourage people to take action to reduce water pollution. The Clean Rivers Coalition developed,submitted and won a grant in 2017 from the Meyer Memorial Trust's Willamette River Initiative for a statewide outreach campaign for dean water.The 5100,000, two-year grant is helping fund a strategic plan and develop a brand and campaign materials.The funds will be used in three phases: • Grant Phase I:Strategic Plan Development, February 2018—September 2018 • Grant Phase li:Branding and Outreach Campaign Development,September 2018—May 2019 • Campaign Launch:June 2019 Additional community events • 3 The River Starts Here messaging was also disseminated at the following community + ti 111 ❑events during FY 2017-18: i�■ Clackamas County Water Education aTeam Teacher Workshop,Aug.2017 • Clackamas Down the River Cleanup, `, 1 Sept.2017 +� • Discover Rock Creek,Nov.2017 • Children's Clean Water Festival t i March 2018 • Clackamas Celebrating Water,March - 2018 Figure 6:Discover Rock Creek • WES&SOLVE Summer Waterway Cleanups Kickoff,May 2018 ,w. taricR 7 Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 32 WEBSITE:THE RIVERSTARTSHERE.ORG TheRiverStartsHere.org launched in June 2015.Web content includes an image slider with Coalition messages,links to member websites,the Coalition's latest pasts on Facehook and Twitter,and additional web resources. Total traffic on the website decreased substantially from the previous year which had a larger digital advertising effort.FY 2017-18's web traffic trends are most similar to those of FY 2015-16. Top visitor locations include Portland,Oregon City,Vancouver and Hillsboro. Web analytics showthe website is of value to some visitors,but the high bounce rate suggests others did not find the information they expected.A little over 200 visits to the events indicates visitors are looking for event information. Returning visitors accounted for about 10 percent of all visits during the fiscal year and spent about 45- seconds on the site,on average,compared to just 22 seconds for new visitors.Many website visitors return within two months. Table 3:TheRiverStartsHere.org analytics overview Total sessions 1,194 7,558 963 Bounce rate,all traffic 89% 92% 89% Bounce rate,search(organic)traffic 87% 72% 79% Time on site 35 seconds 20 seconds 27 seconds Traffic type Direct 36% 78% 40% Organic(search engine) 19% 3% 23% Referral 45% 18% 37% Sessions by device _ Mobile 16% 71% 19% Tablet 9% 17% 6% Desktop 74% 12% 75% olk 11 .— _-- IRMPI oh Figure 7:TheRiverstartsHere.org website graphic RIVER 8 STARTS Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 33 SOCIAL MF[)IA The Coalition continued posting to its previously established social media channels.Social media messages build on existing conversations and connect with organizations around the region.The Coalition delivers its messages following its seasonal messaging calendar. Farebook page, Clean Rivers and Streams The Coalition continued increasing the number of Facebook posts.While slightly fewer people were reached in FY2017-18 than FY2016-17,the number of people who are engaged with the Coalition almost doubled as seen by the information on daily engaged users.This was likely caused by nearly doubling the number of posts compared to the previous fiscal year.A summary of Coalition Facebook account use is as follows: Table 4:Facebook page overview Reach 1,171 391,433 335,145 Daily engaged users 92 2,673 5,168 New likes 37 158 255 Posts 7 45 82 Lifetime total likes:1,169 Twitter(Priverstartshere) The Coalition increased its Twitter posts compared to the previous fiscal year and increased the number of followers by 99.While the Coalition tweeted less,it retained a similar number of followers.A summary of use during the fiscal year is as follows: Table 5:Twitter account overview 2015-16 Followers 1,343 1,442 1,447 Following 1,325 1,544 1,704 Coalition tweets 11 54 9 STARTS Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 34 FY 2017-18 BUDGET Table 5:FY 2017-18 expenditures Ads Pamplin Community News Print and digital ad placements in local newspapers and $4,360.06 news websites Facebook Sponsored post promoting an event $13.00 Subtotal $4,373.00 Event sponsorships Sponsorship including event table,watershed council The Big Float table and event admissions shared with community $12,653.00 groups serving traditionally underserved communities Coordination support Envirolssues Annual report preparation,social media authoring $2,g74.00 TOTAL $20,000.00 OBSERVATIONS The following observations are based on results of FY 2017-18 activities and suggest ways that the Coalition could adapt its outreach to continue reaching more people. Statewide collaboration:The Coalition was deeply dedicated to the establishment and convening of the Clean Rivers Coalition,which was formed in the previous fiscal year.Therefore,the Regional Coalition for Clean Rivers and Streams maintained a small but strong outreach effort this fiscal year.The current Coalition members may consider consolidating strategy and messaging or working in tandem with this new group.In either case,accessing additional funding will allow for increased reach of clean water messages through new strategic opportunities. Social media:The Coalition expanded its social media presence in FY 2016-17 compared to the previous year by placing more posts throughout the year and helping raise awareness of community events. There is opportunity to further maximize the impact of social media activity by creating and following a strategic approach that links Coalition messages with current events where appropriate;finesses the tone,taking a strategic approach to post timing,and content of posts;and links messages with partners and topics of public interest to encourage greater online interaction and organic reach. Website:The Coalition website serves multiple purposes and audiences.For members of the public it shares messages promoting river-friendly actions.For potential funding partners it describes the Coalition's membership and mission.There is opportunity to reevaluate the purpose and approach to the Coalition's web presence to best meet the goals for both audiences. Community events:The Coalition continued to expand its activities promoting and participating in community events.In the future,Coalition members may consider encouraging further individual use of tipR 10 Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 35 its messages and creative collateral by member agencies.There is also an opportunity to evaluate the Coalition's activities as a whole and identify which tactics were most effective at connecting with target audiences and continue to use standardized tracking metrics for future evaluation and decision-making, Events were publicized via the website events page.Several partner and Coalition member events were promoted on the Coalition's Facebook events calendar for greater visibility. Digital advertising:This year,the Coalition chose to pursue Pamplin newspaper and website ads,and a boosted post on Facebook.Strategically placed digital ads have a high return on investment in reach and impressions.These statistics can be tracked and reported,unlike print ads.Digital advertising as a whole- is an effective tool to continue under a strategic approach. CONCLUSION Based on campaign results,important points to consider for the 2018-19 campaign can further optimize the Coalition's investment in outreach and advertising and increase measurable outcomes. • Develop and follow a holistic,cross-platform campaign strategy that integrates multiple goals of promoting behavior change with Coalition messages,online engagement and community outreach events.Align existing and potentially new tools with this strategy and champion its maintenance. • Further optimise advertising by focusing on low-cost digital advertising that also encourages engagement that can be tracked and reported through analytics. • Evaluate and focus the Coalition's social media strategy to promote meaningful engagement with followers and relay key messages to the public. • Take a strategic look at the website to best determine its purpose and identify its target audience. • Consider creating a partner toolkit for easy Coalition member and third-party access to materials that promote the Coalition's key messages. • Continue to collect standardized metrics at in-person outreach events to enable assessment, reporting and identification of the most successful tactics. p� I1 Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 36 Appendix C.2 City Events,Articles, and Social Media Posts The City uses newsletters and social media to promote habitat restoration events, urban forestry workshops, and stormwater messaging. The City has 2,900 Instagram followers; over 3,000 Facebook followers; almost 5,000 Twitter followers; and NextDoor has the ability to reach 13,000 people. The City started printing a calendar with stormwater messaging in it that has been well-received by the community. In 2017, we printed 500 of them and we sold out of the 2018 calendars in 2 weeks even though 1,500 were printed for residents. It has also been recognized outside the City. The City-County Communications& Marketing Association (3CMA) gave the 2018 Calendar the Award of Excellence—it won among 740 entries from 198 jurisdictions throughout the United States. Stormwater Benefit a aJ +' c t fFal C E G A .(2 al 'x 00 `"E el oa a 111 ij -Q .O .12 E ,_ L •.5-a N c -c -o H u -0 o Z MI = C aJ L ra ra u - al a, a1 u y u a1 7 TA y o 3 2 Media c a, eij cc a, a, .5 cc c Outlet Subject L^ a a g ac Promoted Backyard Habitat tour with Friends of Tryon Creek-native plant 7/17 Hello LO gardening X X X X X X X X Promoted City workshop on tree removal, tree protection fencing, and techniques for protecting LO Down, trees during 7/17 Facebook construction X X X X X 1 2017 Dog 7/17 Calendar Pet waste cleanup reminder X 1 2017 Dog Tips for native plants in stormwater 7/17 Calendar facilities X X Promote City workshop on tree Hello LO, removal, tree protection LO Down, fencing, and techniques for protecting Facebook, trees during 8/17 Twitter construction X X X X X 1 2017 Dog 9/17 Calendar Promote stream cleanup events X X X X X X Promoted work parties for invasive 10/17 Facebook removal and native planting X X X X X LO Down, Facebook, Twitter, 2017 Dog 10/17 Calendar Promoted Drug Take Back Event X X 1 2017 Dog 10/17 Calendar Provided leaf collection tips X X LO Down, 2017 11/17 Calendar Provided leaf collection tips X X Promoted work parties for invasive 11/17 LO Down removal and native planting X X X X X Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 37 1 Provided leaf collection and storm 11/17 HelloLO drain cleaning tips X X 1 HelloLO, Promoted work parties for invasive 12/17 LO Down removal and native planting X X X X X LO Down, Facebook, 12/17 Twitter Promoted Christmas light recycling X X Facebook, 2017 Dog Provided tips on safely de-icing 12/17 Calendar sidewalks X 11/18 LO Down Promoted Christmas light recycling X X Hello LO, Facebook, Provided tips on safely de-icing 1/18 Twitter sidewalks X 1 HelloLO, Promoted OLWC State of the 1/18 LO Down Watershed event X 11/18 HelloLO Provided tips on electronic recycling X X Promoted work parties for invasive 1/18 LO Down removal and native planting X X X X X 1 Provided tips on pet waste disposal 2/18 HelloLO and owner requirements X Promoted work parties for invasive 2/18 HelloLO removal and native planting X X X X X Promoted OLWC State of the 2/18 HelloLO Watershed event again X Promoted TRWC's annual "Watershed 2/18 Facebook Wide"event. X Promoted "Honoring Our Rivers" 2/18 LO Down project X Promoted Clackamas County's Green 2/18 Facebook Business Directory X X X X X Provided an insert on native gardening, native plant sales,and 3/18 HelloLO water conservation X X X X X Promoted City-funded Neighborhood Grants which can be used for recycling events,street tree planting, invasive 3/18 HelloLO plant removal X X X X X X X HelloLO, Promoted new dog parks and 2018 Dog reminded owners of their pet waste 3/18 Calendar requirements. X Promoted work parties for invasive 3/18 HelloLO removal and native planting X X X X X HelloLO, LO Down, 3/18 Facebook Promoted the Drug Take Back event X X Promoted "Honoring Our Rivers" 4/18 Facebook Project X HelloLO, LO Down, 4/18 Twitter Promoted the Drug Take Back event X Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 38 HelloLO, LO Down, Promoted work parties for invasive 4/18 Facebook removal and native planting X X X X X I4/18 HelloLO Promoted local native plant sale X X X X X Provided information on tree mitigation-when it is required and 4/18 HelloLO what to do X X X X Promoted the City's Urban Forestry Workshops which include Native and Invasive Tree Identification, Understanding the Tree Code: Removal&Protection Permits, Creating Pollinator Habitat, HelloLO, Landscaping for Conservation, Planting 4/18 LO Down the Right Tree in the Right Place X X X X X X 1 LO Down, 4/18 Facebook Promoted Arbor Day X X X X X Promoted work parties for invasive 5/18 HelloLO removal and native planting X X X X X Promoted Bulk Waste Event on June 5/18 HelloLO 16 from 10am to 2pm X X X X X Promoted City's Urban Forestry 5/18 LO Down Workshops at the Farmer's Market X X X X X X 15/18 LO Down Promoted Backyard Habitat Tour X X X X X X X X 1 Facebook, 6/18 Twitter Promoted Clean Up Day X X X X X 16/18 Facebook Reminder to recycle electronics X X *RWPC is the Regional Water Provider's Consortium (conserveH2O.org) Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 39 Appendix C.3 KOIN-TV Outreach Year Media Outlet FY1314 FY1415 FY1516 FY1617 FY1718 Average TV Messages 220 221 235 388 385 290 TV Audience Reached 7,333,000 7,220,100 6,206,000 9,038,800 6,947,900 7,349,160 Website Audience Reached 914,139 686,255 1,334,784 1,029,989 486,457 890,325 KOIN.com clicks 1,453 1613 13,781 6,575 3,075 5,299 Facebook Audience Reached 282,749 444,641 363,695 Facebook clicks 2,012 3,657 2,835 Facebook Video views 110,321 242,462 176,392 Total Audience Reached (Social Media and TV) 8,248,812 7,908,189 7,540,784 10,351,533 7,878,998 8,385,663 Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 40 Appendix C.4 Tualatin Basin Public Awareness Committee (TBPAC) Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 41 Tualatin Basin Public Awareness Committee Annual Report July 2017 — June 2018 The Tualatin Basin Public Awareness Committee(TBPAC)is a group of dedicated individuals with the single goal of protecting the Tualatin River Watershed through innovative stormwater public awareness and education activities. The TBPAC"Partners for Clean Water"have met since 1993 to leverage resources to deliver healthy watershed outreach programs at little or no cost to Tualatin Basin residents. The Fiscal Year 2018 participants included: Sponsors Rebecca Tillson,Portland Bureau of Environmental Services Sonja Johnson,City of Lake Oswego Beth Randolph, City of West Linn Marissa Grass,City of Tigard Lacey Townsend,Tualatin Soil&Water Conservation District Courtney Threewitt,Washington County Operations&Maintenance Gari Johnson,Clackamas County Water Environment Services Tualatin River Ely O'Connor,Clean Water Services Eli Bonilla,Clean Water Services Watershed Karen DeBaker,Clean Water Services In-Kind Partners April Olbrich, Tualatin River Watershed Council ) Ruby Buchholz, Tualatin Riverkeepers Mary Logalbo,West Multnomah Soil&Water Conservation District . ' Designated Management Aaencv Group Sheila Ault,OR Department of Agriculture Partners Amin Wahab,City of Portland BES Frank Wildnesee, City of Portland BES For Clean Water Sonja Johnson,City of Lake Oswego Roy Iwai,Multnomah County Mike Cardwell/Beth Randolph, City of West Linn John Nagy, Clackamas County WES Andrew Swanson, Clackamas County WES Todd Watkins,Washington County Rocky Brown,Washington County Donna Hempstead,Washington County Wade Peerman,DEQ Raj Kapur,Clean Water Services Bob Baumgartner,Clean Water Services Jerry Linder,Clean Water Services Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 42 Programs&Activities Stream Crossing Signs Members received new signs and replaced with those in poor condition in their jurisdiction. In 2014,over 200 stream crossings and signage conditions were located on Washington County public roads. Members agreed to update the • . most damaged signs. - Discovery Day($1000) - TBPAC support helped put 142 community members on the river in 87 boats during the 29th annual Discovery Day on June 23 hosted by the Tualatin Riverkeepers. Eighty-six volunteers donated their time to assist paddlers,drive shuffles,promote and manage the event. Rumba al Rio($500) The program is a partnership between the Tualatin Riverkeepers and Adelante Mujeres program which targets women and children.Rumba al Rio was incorporated into a week-long nature camp with Adelante Chicas. Naturescaping for Clean Rivers Workshop($53) Twenty-one folks registered and 12 attended the Naturescaping class on June 3 at the Tualatin Soil&Water Conservation District(f SWCD)office in Hillsboro.TBPAC sponsored the refreshments.TBPAC will continue to work with TWSCD to sponsor additional workshops and assist with promotion. Stormwater Tabletop Displays Members continued shared use of two stormwater interactive displays local community events. '` . r • 411 Will Hornyak"Living Stream"School Presentations($2480) } K Storyteller Will Homyak presented"Living Streams"presentations to 1,345 students in four schools,average of two assemblies per school: - wr• • April 3: McKinney Elementary(Hillsboro)300 students • April 26: Quatama Elementary(Hillsboro)320 students • May 21: Markham Elementary(SW Portland)475 students • May 25: Reedville Elementary(Beaverton)250 students McKinney Elementary: Our third graders at McKinney absolutely loved having Will Hornyak visit our school.He is a great storyteller and the kids were very engaged with the story.Even some of our kids that struggle to pay attention had their eyes on him the whole time!They were laughing and learning. They came back from the story, talking about it the rest of the week. They learned about why it is important to keep water clean and the journey of water/living things all with a smile on their face. Thank you! Markham Elementary: Great crowd involvement! Will left our students with not only a deeper understanding ofprotecting the environment, but also ofprotecting this corner of the greater Portland area. Nature-friendly Home&Yard Care Brochure x.r11.2 0.rr d Members continued distribution of the popular brochure. Included are healthy watershed tips such as roof treatments,car washing and composting along with natural recipes for insect control,weed removal and garden soil amendment. 1 I� Lake Oswego NPDES MS4 Annual Report FY17-18 Page APP 43 ia...„ , ,, ir, .,_ .., -...,,,, LAKE OSWEGO healthy watersheds Stewardship Fora Sustainable Future / .s, ' THE RIVER STARTS HERE