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Home My WebLink AboutNCS000245_Raleigh 2021 Annual Report_20211029 NPDES Stormwater MS4 Permit Annual Report October 1, 2020 – September 30, 2021 Permit No. NCS000245 To discharge stormwater under the National Pollutant Discharge Elimination System Prepared by S. Wayne Miles, PE, Stormwater Program Manager 2 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Table of Contents Summary………………………………………………………………………………...…………………..3 Section A: Program Implementation ................................................................................................ 5 Section B: Public Education and Outreach ...................................................................................... 5 B.1 Program Narrative ........................................................................................................ 5 B.2 Best Management Practices ......................................................................................... 6 Section C: Public Involvement and Participation ........................................................................... 12 C.1 Program Narrative ...................................................................................................... 12 C.2 Best Management Practices ...................................................................................... 13 Section D: Illicit Discharge Detection and Elimination ................................................................... 14 D.1 Program Narrative ...................................................................................................... 14 D.2 Best Management Practices ...................................................................................... 14 Section E: Construction Site Runoff Controls ................................................................................ 22 E.1 Program Narrative ...................................................................................................... 22 E.2 Best Management Practices ....................................................................................... 22 Section F: Post-construction Site Runoff Controls ......................................................................... 23 F.1 Program Narrative ....................................................................................................... 23 F.2 Best Management Practices ....................................................................................... 24 Section G: Pollution Prevention and Good Housekeeping for Municipal Op erations .................... 24 G.1 Program Narrative ...................................................................................................... 24 G.2 Best Management Practices ...................................................................................... 25 Section H: Program to Monitor and Evaluate Stormwater Discharges to Municipal Systems ....... 28 H.1 Program Narrative ...................................................................................................... 28 H.2 Best Management Practices ...................................................................................... 28 Section I: Water Quality Assessment and Monitoring .................................................................... 28 I.1 Program Narrative ........................................................................................................ 28 I.2 Best Management Practices ........................................................................................ 28 Section J: Total Maximum Daily Loads .......................................................................................... 29 J.1 Program Narrative ....................................................................................................... 29 J.2 Best Management Practices ....................................................................................... 30 3 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Summary This report describes programs and activities undertaken during the period of October 1, 2020 through September 30, 2021 as required by the City of Raleigh’s permit to discharge stormwater under the National Pollutant Discharge Elimination System (NPDES), NPDES Stormwater MS4 Permit no. NCS000245. _______________________________ S. Wayne Miles, PE Stormwater Program Manager City of Raleigh 4 Stormwater MS4 Permit Annual Report Permit No. NCS000245 5 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Section A: Program Implementation The City of Raleigh implements, manages, and oversees all aspects of its Stormwater Management Plan to control to the maximum extent practical the discharge of pollutants from its municipal storm sewer system associated with stormwater runoff and illicit discharges, including spills and illegal dumping. Program Element Annual reporting Metric(s) 2020-2021 Part II Section A.1 The permittee will maintain adequate legal mechanism, such as regulations, ordinances, policies, and procedures to implement all provisions of the SWMP. Report modifications to the regulations, ordinances, policies, and procedures The City’s Education and Outreach Plan and Water Quality Assessment and Monitoring Plan have been updated and changes have been implemented during this reporting year. Part II Section A.2 The permittee will implement provisions of the SWMP and evaluate performance and effectiveness of the program components. N/A, annual reporting of program effectiveness is described in Section 13 of the SWMP N/A Part II Section A.3 The permittee is required to keep the SWMP up to date with annual updates if any changes are warranted. Report modifications to the SWMP and make available to the Division upon request SWMP was updated during this reporting period, submitted to NDEQ on March 17, 2021 and was deemed approved on June 15, 2021. Part II Section A.4 The permittee shall maintain, and make available to the Division upon request, written procedures for implementing the six minimum control measures. Written procedures shall identify specific action steps, schedules, resources, and responsibilities for implementing the six minimum measures. Written procedures are available to DEQ upon request N/A Section B: Public Education and Outreach B.1 Program Narrative The City provides an assortment of tools for reaching out to and educating the public including utility bill inserts, newsletters, webpages, articles, social media, presentations at workshops, classroom education, and TV and radio campaigns. In addition to providing videos and website and printed materials, CWEP produces a large multi-media campaign including television public service announcements, radio public service announcements, and a stormwater informational webs ite, www.nc-cleanwater.org. The CWEP annual report for this reporting period is submitted directly to NC DEMLR by the Triangle J Council of Governments on behalf of the City. 6 Stormwater MS4 Permit Annual Report Permit No. NCS000245 B.2 Best Management Practices Permit Reference/BMP Annual reporting Metric(s) 2020-2021 Part II Section B.2 (a) Describe target pollutants and sources Report target pollutants and the associated sources Report reason each target pollutant was chosen See Table B-1 Part II Section B.2 (b) Describe target audiences Report target audiences likely to have significant storm water impacts See Table B-1 Report reason each target audience was selected See Table B-1 Part II Section B.2 (c) Informational website Report number of hits to stormwater website 44,500 page views for all Stormwater Management webpages; 374 page views for the SWMP webpage. (Data for 10/1/2020 – 8/31/2021 only; totals unavailable for September 2021 at time of reporting Part II Section B.2 (d) Distribute public education materials to identified user groups Report number of educational materials distributed by type See Table B-2 Part II Section B.2 (e) Promote and maintain hotline(s) or helpline(s) Report number of calls handled by helpline by type of call Total calls: 1,214 Drainage: 357 Utility fee: 175 Plan review: 335 Volunteer: 37 Illicit discharge: 99 Active construction: 174 Capital projects: 12 Utility billing: 25 Total emails: 358 Part II Section B.2 (f) Implement a public education and outreach program Report City events and number of handouts distributed at each event See Table B-2 Report City’s in-school events and number of participants See Table B-3 Table B-1 Target pollutants, associated sources, target audiences and justification Target Pollutant Target Pollutant Justification Pollutant Sources Target Audiences Target Audiences Justification Sediment Increases MS4 maintenance, degrades stream and lake biological abundance and diversity, reduces lake depth and storage volume, aesthetically unattractive Illicit discharge, construction sites, streambank erosion (resulting from increasing impervious in the watershed) Construction contractors, developers, municipal government, property owners/residents, general public Audiences conduct, oversee, regulate, and/or engage in and/or observe activities at pollutant sources 7 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Target Pollutant Target Pollutant Justification Pollutant Sources Target Audiences Target Audiences Justification Nutrients (nitrogen and phosphorus) Promotes growth of algae in lakes and streams which can degrade biological abundance and diversity, toxic to aquatic species and humans, impede recreation, aesthetically unattractive Illicit discharge, sewage overflows and leaks, clippings and waste from landscape maintenance/lawn care, pet animal waste, application and improper storage of fertilizers, atmospheric fallout Landscape maintenance/lawn care companies, property owners/residents, municipal government, general public Audiences store and apply fertilizer, own or maintain sewer plumbing/pipes, engage in and/or observe activities at pollutant sources Trash Increases MS4 maintenance, aesthetically unattractive Illicit discharge, construction sites, litter, dumping, restaurants, food trucks Construction contractors, property owners/residents, restaurant and food truck owners/operators, general public Audiences generate and store trash or engage in and/or observe activities at pollutant sources Metals Degrades stream and lake biological abundance and diversity Illicit discharge, vehicle storage and maintenance, construction sites, paints and finishes, material, and chemical storage Construction contractors, painting contractors, property owners/ residents, vehicle repair shops Audiences engage in activities that store/handle materials and generate wastes that contain metals and/or observe activities at pollutant sources Bacteria Public health, pet health Illicit discharge, sewage overflows and leaks, failing septic systems Property owners/residents, municipal government, general public Property owners/residents responsible for septic systems and private sewer plumbing and connections, municipal government responsible for most sanitary sewers, general public observes activities at pollutant sources Oil & grease Degrades stream and lake biological abundance and diversity Illicit discharge, vehicle storage and maintenance, restaurants, food trucks Vehicle repair shops, restaurant and food truck owners/operators, municipal government, general public Audiences conduct, oversee, and/or engage in and/or observe activities at pollutant sources 8 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Table B-2 Education and Outreach event and material distribution log Date Description of Activity Attendees & Materials Count Education Materials (# each material same as # attendees) 10/01/20 Stormwater Management Advisory Commission Virtual Meeting 44 10/10/20 Rain Garden/Rain Barrel Workshop 7 Raleigh Rainwater Rewards flyer, CWEP brochure, volunteer programs flyer, general pollution flyer 10/30/20 Longleaf Hotel Cistern Feature Article - Raleigh Magazine Publication 30,000 Article 11/05/20 Stormwater Management Advisory Commission Virtual Meeting 53 11/09/20 Storm Drain Marking Springstone Subdivision 19 Storm drain markers Illegal discharge general brochure 11/16/20 Proposed Floodplain Regulations Mailing Directly Impacted Property Owners 312 Informational letter 11/16/20 Proposed Floodplain Regulations Mailing Property Owners in Floodplain 4,016 Informational letter 11/17/20 NCYouth Conservation Corp-Mini Stream Workshop/General Stormwater Presentation 12 11/24/20 Exploris Middle School Virtual Q & A Presentation-Green Stormwater Infrastructure 8 12/01/21 Social Media Posts for Raleigh Stream gauges and USGS partnership 35,000 impressions 12/01/20 Stormwater Fee Notification Mailing 9 Stormwater fee brochure 12/03/20 Stormwater Management Advisory Commission Virtual Meeting 56 12/05/20 Virtual Stream Monitoring Workshop 17 12/09/20 Illegal Discharge Detection Leaf Education Email Notification 478 Leaf education information 12/17/20 Stormwater Capture it Art Contest Email Campaign 120 Contest flyer promotion 12/22/20 Virtual Floodplain One on One Meeting with Riverbend at Lakeside Homeowners Association Contact 1 01/07/10 Stormwater Management Advisory Commission Virtual Meeting 49 01/12/21 Upper Lake at Durant Park/Lake Study Public Meeting #1 25 9 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Date Description of Activity Attendees & Materials Count Education Materials (# each material same as # attendees) 01/17/21 Stormwater Capture it Art Contest Social Media and Email Campaign Not known 01/23/21 Virtual Floodplain Meeting with City of Raleigh Hispanic & Immigration Board 11 01/26/21 Upper Lake at Durant Park/Lake Study Public Meeting #2 20 02/01/21 Stormwater Fee Notification Mailing 21 Stormwater fee brochure 02/04/21 Stormwater Management Advisory Commission Virtual Meeting 39 02/05/21 Water Pollution Wednesday Social Media Campaign 13,800 impressions 02/08/21 Winter e-Builder Training Sessions 45 02/09/21 Winter e-Builder Training Sessions 45 02/10/21 Winter e-Builder Training Sessions 45 02/11/21 Winter e-Builder Training Sessions 45 02/12/21 Winter e-Builder Training Sessions 45 02/18/21 Stormwater Art Contest Facebook Ad Promotion 807 views Contest promotional ad 02/26/21 Winter Urban Watershed Newsletter 905 Newsletter 03/01/21 Stormwater maintenance behind the scenes 12,700 impressions Social media 12/20 – 3/21 Stormwater Capture it Art Contest Social Media and Email Campaign 1,748 Social media contest promotion 03/01/21 Stormwater Fee Notification Mailing 7 Stormwater fee brochure 03/04/21 Stormwater Management Advisory Commission Virtual Meeting 40 04/30/21 Earth Day/Arbor Day Tree Planting Social Media posts and Videos 41 07/24/21 StoryWalk at Lake Johnson Park All the Way to the Ocean Not known 03/11/21 Virtual Stormwater Volunteer Recognition Hidden Rivers Documentary Screening 13 03/12/21 Sustainable Wildlife & Urban Tree Committee (SWUT) Virtual Meeting 5 03/13/21 Raleigh Watershed Learning Network- storm drain marking demo 30 10 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Date Description of Activity Attendees & Materials Count Education Materials (# each material same as # attendees) 03/20/21 Creek Week/Multi-site Stream Clean Ups Drop-in and Adopt a Stream Groups 133 03/20/21 Social Media Posts& Direct Email Creek Week- Stream Cleanups two locations 1,657 03/26/21 Raleigh Rainwater Rewards Social Media Promotions 1,454 03/27/21 Rain Garden/Barrel Workshop-In-Person 11 03/28/21 Raleigh Watershed Learning Network presentation- GSI/Innovation & Funding 15 04/01/21 Stormwater Fee Notification Mailing 13 Stormwater Fee Brochure 04/01/21 Stormwater Management Advisory Commission Virtual Meeting 40 04/08/21 Mailing for Proposed Floodplain Regulations - Public Hearing 3,960 Proposed floodplain regulations letter 04/20/21 Virtual Storytime Reading & Presentation- Al Iman School 28 04/21/21 Virtual Twitter Announcement of the 2021 Capture it! Art Contest winning entries Not known 04/22/21 Urban Watersheds Spring Newsletter 846 Quarterly newsletter 04/24/21 Virtual Stream Monitoring Workshop 9 04/28/21 Garden Club field tour of Raleigh Union Station green roof 10 05/01/21 Stormwater Fee Notification Mailing 4 Stormwater fee brochure 05/03/21 Post Card Mailing-Western North Ridge Project Virtual Public Meeting 46 Project update postcard 05/05/21 Stream Cleanup, Cary Academy High School 7 05/06/21 Stormwater Management Advisory Commission Virtual Meeting 40 05/12/21 Virtual & In-person Presentation 2021 Carolina Climate Resilience Conference on "Nature-based Stormwater Solutions" 40 05/22/21 Think Clean Raleigh - Trash Pick-up 18 05/25/21 Virtual Public meeting- Western North Ridge Stormwater Project 14 06/03/21 Stormwater Management Advisory Commission Virtual Meeting 39 05/14/21 Water Partnership Education and Outreach- Virtual Presentation 20 11 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Date Description of Activity Attendees & Materials Count Education Materials (# each material same as # attendees) 05/26/21 Go Ask Mom - Local News On-line Story Walk at Lake Johnson 11,000 05/26/21 Hurricane Season Staff Interview with Spectrum News Not known 05/30/21 Stormwater Fee Notification Mailing 4 Stormwater fee brochure 05/31/21 National Dam Safety Awareness Day- Website Article/Social Media Video 556 06/21/21 Environmental Justice Summer Camp EnviroScape, Green Stormwater Infrastructure Presentations 9 CWEP brochure 06/21/21 Your Service Connection /Monthly newsletter Mailing - Pool Water Pollution Article 204,051 Public Utilities customer monthly newsletter 06/24/21 NC Youth Conservation Corps -Water Quality Presentation with Stream Flow Activity 8 07/01/21 Stormwater Management Advisory Commission Virtual Meeting 37 07/01/21 Stormwater Fee Notification Mailing 8 Stormwater fee brochure 07/06/21 South Raleigh Drainage Studies Public Input Session Postcard Mailing 1,446 Drainage studies information postcard 07/07/21 Girls in Science - mini stormwater stream monitoring presentation and monitoring activities 10 07/07/21 Floodplain Safety & Benefits of a Healthy Floodplain Videos - Social Media Posts and Story 800 impressions 07/22/21 NC Conservation Corps Mini Stream Monitoring presentation & monitoring activities 14 07/01/21 Illegal Discharge Detection Elimination Car Wash Businesses Mailing 208,000 At Your Service utility bill insert 08/05/21 Green Stormwater Infrastructure Virtual Subcommittee Meeting 10 08/12/21 Rain Garden & Rain Barrel mini- presentation Garden Club 11 Raleigh Rainwater Rewards flyer, CWEP brochure, volunteer programs flyer, general pollution flyer 08/18/21 North Carolina State University Volunteer Fair 50 Stormwater volunteer brochure 08/20/21 Statewide Stakeholders Meeting- Advancing Nature-based Stormwater Strategies to Reduce Flooding and Improve Water Quality in North Carolina 55 12 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Date Description of Activity Attendees & Materials Count Education Materials (# each material same as # attendees) 08/31/21 Stormwater Fee Notification Mailing 10 Stormwater fee brochure 09/02/21 Stormwater Management Advisory Commission Virtual Meeting 41 9/6/2021 Mass Mailing New Stormwater Fee/Tier Notification Letter 1,073 09/08/21 Exploris Middle School EnviroScape Presentations 70 09/23/21 2021 Annual e-Builder Elevate Conference Not known 9/29/2021 SNAP tool Presentation/Training for Staff 16 9/30/2021 Presentation on incorporating Urban Agriculture & Stormwater 14 9/30/2021 Stormwater (Billing Notification Letter) Fee Brochures 11 9/30/2021 Raleigh Rainwater Rewards Consults (10/1/2020 – 9/30/2021) 202 Table B-3 Education and Outreach school events Date # Students Attended Event Location/Description Virtual/In-person 11/24/20 6 Exploris Middle School/interview with students on green infrastructure and stormwater Virtual 03/05/21 300 Wakefield Middle School/EnviroScape demo Virtual 04/20/21 28 Al Iman School/StoryTime reading Virtual 09/08/21 70 Exploris Middle School/ EnviroScape demo In-person Section C: Public Involvement and Participation C.1 Program Narrative The City provides opportunities for public involvement and participation. The City’s Stormwater Management Plan is noticed and presented at a public hearing for comment by the public once per permit cycle. As-needed changes to City stormwater regulations also are noticed and presented at public hearings for comment by the public. The annual budget for the Stormwater Management Division is noticed and presented for public comment prior to adoption. As a means of obtaining more regular public input on policy and project related matters, Raleigh City Council established the Stormwater Management Advisory Commission that reviews stormwater management issues and provides guidance and recommendations to City Council. Comments from the public also are received during meetings of this commission. 13 Stormwater MS4 Permit Annual Report Permit No. NCS000245 C.2 Best Management Practices Permit Reference/BMP Reporting Metric(s) 2020-2021 Part II Section C.2 (a) Volunteer community involvement program Report number of participants in each City volunteer opportunity Adopt a Stream: 393 Storm drain marking: 10 Stream monitoring: 17 Foster a Stream: 195 Part II Section C.2 (b) Establish a mechanism for public involvement Report meeting dates for meetings of the Stormwater Management Advisory Commission and topics of discussion pertaining to MS4 compliance October 1, 2020 November 5, 2020 December 3, 2020 (MS4 and Linear Asset Management Study) January 7, 2021 February 4, 2021 March 4, 2021 (Stormwater Program Budget Update and Level of Service Options) April 1, 2021 (Capture It! Stormwater Arts Contest Finalists and Voting) May 6, 2021 (Update on Watershed Master Planning and Community Engagement) June 3, 2021 July 1, 2021 September 2, 2021 Part II Section C.2 (c) Establish hotline(s) or helpline(s) N/A, see helpline reporting metrics in Part II Section B.2. N/A Part II Section C.2 (d) Public review and comment Report webpage link for SWMP https://raleighnc.gov/SupportPages/stormwater- management-plan Report mechanisms used for public review and comment on the SWMP The City uses the SWMP website with the Water Quality Manager’s contact information and the City’s Stormwater hotline phone number and email address to provide citizens a mechanism to comment on the SWMP between updates. Part II Section C.2 (e) Public notice If public notice occurred, report mechanism(s) used to advertise public review and comment and public notice period. Advertising for public notice of the updated SWMP for public review and comment was completed between January 8 – February 5, 2021. Announcement of the start and end of the SWMP public comment period occurred at the January 7, 2021 and February 4, 2021 Stormwater Management Advisory Commission meetings. Mechanisms used to advertise this public review and comment period: Website: 169 pages views Email: January 12, 2021 to 3,072 subscribers February 4, 2021 to 3,029 subscribers Social media: Twitter, two posts, 5,736 impressions Facebook, two posts, 257 people reached 14 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Section D: Illicit Discharge Detection and Elimination D.1 Program Narrative The City’s illicit discharge program began in 1995. This program is based on a City ordinance that defines what constitutes an illicit discharge and an illicit connection and provides enforcement protocols. Illicit discharges and illicit connections are identified through reports from the public, reports from City staff across all departments, dry weather screening observations, and outfall inspections. A team of three staff is assigned to Illicit Discharge Detection and Elimination (IDDE). IDDE preventive measures include educating City staff and the public through various means and direct mailings to businesses, such as landscapers and restaurants, that have a history of illicit discharges. Outreach efforts also include regular updates to website content, social media, utility billing and newsletter inserts , and coordination with Wake County and professional associations to distribute illicit discharge prevention information to wide audiences. D.2 Best Management Practices Permit Reference/BMP Annual Reporting 2020-2021 Part II Section D.2 (a) Maintain appropriate legal authorities N/A, see Part II Section A.1 for reporting of legal authorities N/A Part II Section D.2 (b) Maintain a storm sewer system base map of major MS4 outfalls Report number of major outfalls 179 Provide overview map of receiving streams and major outfalls See Map D-1 below Part II Section D.2 (c) Inspection/detection program to detect dry weather flows at MS4 outfalls Report number of dry weather inspections completed and results 200 dry weather flow outfall inspections were completed during which no illicit discharges or illicit connections were detected Part II Section D.2 (d) Employee training Report number of staff who completed IDDE training and types of training provided 387 City staff completed the IDDE training module through the City’s iLearn platform Part II Section D.2 (e) Maintain a public reporting mechanism(s) Report number of calls and emails received City staff responded to 126 calls of potential illicit discharges; 99 calls were received through the City’s Stormwater hotline Part II Section D.2 (f) Documentation Report dates of investigations, any enforcement action(s) or remediation that occurred See Table D-1 below 15 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Map D-1 Receiving waters and Major Outfalls 16 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Table D-1 IDDE investigations and actions taken October 1, 2020 – September 30, 2021 Address Date Received Date Responded Description Action Taken 925 Runnymede Road 10/8/2020 10/8/2020 Complaint of sediment in tributary Investigated and found not to be a water quality concern; no further action taken 1320 Onslow Road 10/10/2020 10/11/2020 Complaint of blackish sheen in tributary after rain event Investigated and found not to be a water quality concern; no further action taken 907 Marlowe Road 10/13/2020 10/13/2020 Complaint about flush truck dumping turbid water near Crabtree Creek Investigated and found not to be a water quality concern; no further action taken 930 Wimbleton Drive 10/13/2020 10/13/2020 Complaint of fish kill Forwarded to NCDWR 2004 Hornbeck Court 10/15/2020 10/15/2020 Complaint about leaves being blown into catch basin Investigated and found not to be a water quality concern; no further action taken 2550 Sullivan Drive 10/15/2020 10/15/2020 Possible cross connection Investigated and found not to be a water quality concern; no further action taken 1400 Beverly Drive 10/22/2020 10/22/2020 Complaint of SS smell behind property Investigated and found not to be a water quality concern; no further action taken 1700 Nottingham Road 10/26/2020 10/27/2020 Complaint about fuel smell in park Investigated and found not to be a water quality concern; no further action taken 3708 Swift Drive 10/28/2020 10/28/2020 Complaint of debris being blown into catch basin Investigated and found not to be a water quality concern; no further action taken 5607 Capital Boulevard 10/1/2020 10/1/2020 Duke Energy transformer leaking mineral oil into catch basin NOV issued 7440 Six Forks Road 10/10/2020 10/12/2020 Complaint of grease recycle barrel leaking into parking lot NOV issued 9301 Globe Center Drive 10/15/2020 10/15/2020 Driver spilled solvent into storm system NOV issued 1041 Wimbleton Drive 10/23/2020 10/23/2020 Complaint of tributary turning white NOV issued 1317 Wagram Court 10/6/2020 10/6/2020 SSO PUD reported spill to NCDWR 7404 Boros Place 10/29/2020 10/29/2020 SSO PUD reported spill to NCDWR 3037 Allenby Drive 10/31/2020 11/2/2020 Possible septic tank failure Forwarded to Wake County 510 W Martin Street 11/16/2020 11/16/2020 City staff noticed fuel in CB, fuel discharge from rain event Investigated and found not to be a water quality concern; no further action taken 3808 Edwards Mill Road 11/30/2020 11/30/2020 Parks staff noticed two containers full of used oil in COR park parking lot Investigated and found not to be a water quality concern; no further action taken 17 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Address Date Received Date Responded Description Action Taken 6713 Magnolia Court 11/9/2020 11/9/2020 Private SS service discharging in parking lot NOV issued 4408 Jacqueline Lane 12/9/2020 12/10/2020 Private SS service discharging into street NOV issued 4620 Kilcullen Drive 11/16/2020 11/16/2020 Private SS service discharging into CB behind property NOV issued 6012 Viking Drive 11/2/2020 11/2/2020 SSO PUD reported spill to NCDWR 3316 Alleghany Drive 11/12/2020 11/12/2020 SSO PUD reported spill to NCDWR 3900 Quail Hollow Drive 11/12/2020 11/12/2020 SSO PUD reported spill to NCDWR 1500 Banbury Road 11/12/2020 11/12/2020 SSO PUD reported spill to NCDWR 5839 Capital Boulevard 11/15/2020 11/15/2020 SSO PUD reported spill to NCDWR 1117 Beacon Lake Drive 11/28/2020 11/28/2020 SSO PUD reported spill to NCDWR 13401 Falls of Neuse Road 12/18/2020 12/18/2020 Fuel spill (Less than 5 gallons) Warning letter issued 3314 Turnbridge Drive 12/7/2020 12/7/2020 Paint spill NOV issued 8200 McGuire Drive 12/15/2020 12/15/2020 Private SS service discharging on ground NOV issued 9299 Glenwood Avenue 12/9/2020 12/9/2020 SSO PUD reported spill to NCDWR 3120 Walnut Creek Parkway 12/23/2020 12/23/2020 SSO PUD reported spill to NCDWR 740 Powell Drive 12/22/2020 12/23/2020 SS smell near pond on park property Investigated and found not to be a water quality concern; no further action taken 124 W Dawson Street 1/19/2021 1/19/2021 SWS truck had hydraulic spill in street Investigated and found not to be a water quality concern; no further action taken Reedy Creek Greenway 1/29/2021 1/29/2021 Complaint of fuel smell in greenway Investigated and found not to be a water quality concern; no further action taken 110 Parks at North Hills Street 1/15/2021 1/15/2021 PUD staff noticed staining behind restaurant Warning issued 4325 Glenwood Avenue 1/15/2021 1/15/2021 Grease spill NOV issued 2330 Churchill Road 1/20/2021 1/21/2021 Paint spill NOV issued 2940 Golden Oaks Court 1/19/2021 1/19/2021 Private SS discharge NOV issued 5501 Capital Boulevard 2/1/2021 2/1/2021 Staff noticed grease spilled in storm inlet NOV issued 3801 Rolling Green Court 2/5/2021 2/5/2021 SS discharging behind property NOV issued 18 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Address Date Received Date Responded Description Action Taken 2901 Boardlands Drive 2/8/2021 2/9/2021 Private SS service discharging in street NOV issued 2501 W Raleigh Boulevard 2/22/2021 2/22/2021 Oil spill Summary Memorandum issued 5107 Creedmoor Road 2/23/2021 2/23/2021 Grease spill into catch basin behind building NOV issued 4200 Quail Hollow Drive 2/25/2021 2/25/2021 Complaint of blueish hue in tributary near park property Summary Memorandum Issued 3208 Birnamwood Road 2/16/2021 2/16/2021 Concrete wash runoff threatening small tributary near property Warning letter issued 903 Wakestone Court 2/1/2021 2/2/2021 Complaint of greenish color in tributary Investigated and found not to be a water quality concern; no further action taken 619 Kirby Street 2/3/2021 2/4/2021 Complaint of gas spill in street Investigated and found not to be a water quality concern; no further action taken 8701 Wadford Drive 2/8/2021 2/8/2021 Complaint of sewer smell behind building Investigated and found not to be a water quality concern; no further action taken 2601 Oxford Road 2/15/2021 2/16/2021 Complaint of suds in tributary Investigated and found not to be a water quality concern; no further action taken 1323 Williamson Drive 2/20/2021 2/22/2021 Complaint of blueish hue in tributary Investigated and found not to be a water quality concern; no further action taken 600 Rawls Drive 2/2/2021 2/2/2021 SSO PUD reported spill to NCDWR 1116 Savannah Drive 3/22/2021 3/23/2021 Complaint of grease being dumped into storm inlet Warning letter issued 904 Ravenwood Drive 3/22/2021 3/23/2021 Complaint of paint in tributary Investigated and found not to be a water quality concern; no further action taken 6616 Fleetwood Drive 3/1/2021 3/1/2021 Complaint of sediment being discharged into storm inlet from stone cutting NOV issued 4012 Scofield Drive 3/3/2021 3/3/2021 Private SS service discharging into street NOV issued 25 Sunnybrook Road 3/6/2021 3/6/2021 PUD informed staff of private SS service discharging into storm inlet NOV issued 211 Six Forks Road 3/8/2021 3/8/2021 Private SS service discharging into street NOV issued 521 Brent Road 3/19/2021 3/19/2021 Private SS service discharging into street NOV issued 1605 Park Drive 3/14/2021 3/15/2021 Cross connection between sewer line and storm line Investigated and found not to be a water quality concern; no further action taken 19 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Address Date Received Date Responded Description Action Taken 3600 Capital Boulevard 3/12/2021 3/15/2021 Complaint of wash runoff from car wash going into the storm inlet NOV issued 3314 Turnbridge Drive 3/16/2021 3/16/2021 Complaint of paint spilling out of dumpster at property NOV issued 601 W Peace Street 3/23/2021 3/23/2021 Wash runoff from cleaning kitchen mats entering storm inlet NOV issued 6413 Lakeway Drive 4/5/2021 4/5/2021 Private SS service discharging onto sidewalk Warning letter issued 3125 Julian Drive 4/12/2021 4/13/2021 Complaint of brownish water behind property Investigated and found not to be a water quality concern; no further action taken 3711 Jamestown Circle 4/20/2021 4/20/2021 COR staff noticed private sewer service discharging at apartment complex Investigated and found not to be a water quality concern; no further action taken 4800 Walenda Drive 4/20/2021 4/20/2021 Complaint of trash and debris in and around lake on property Investigated and found not to be a water quality concern; no further action taken 5217 Poole Road 4/20/2021 4/20/2021 COR staff noticed possible sewer smell in storm inlet Forwarded to Wake County 7703 Marsh Oak Drive 4/18/2021 4/18/2021 SSO PUD reported spill to NCDWR 400 Woods of North Bend Drive 4/13/2021 4/13/2021 SSO PUD reported spill to NCDWR 2712 Discovery Drive 4/1/2021 4/1/2021 SSO PUD reported spill to NCDWR 510 Cleveland Street 5/5/2021 5/5/2021 Complaint of possible hydraulic fluid spill in street Investigated and found not to be a water quality concern; no further action taken 1101 Milburnie Road 5/3/2021 5/3/2021 Sodium hydroxide leaked out of container onto City park property Warning letter issued 6708 Spencer Court 5/6/2021 5/6/2021 Private sewer service discharging into tributary NOV issued 9531 Waterwood Court 5/20/2021 5/20/2021 Private sewer service discharging into ditch NOV issued 707 S State Street 5/17/2021 5/17/2021 SSO PUD reported spill to NCDWR 5536 Neuse View Drive 5/19/2021 5/19/2021 SSO PUD reported spill to NCDWR 3800 Hillsborough Street 5/24/2021 5/24/2021 SSO PUD reported spill to NCDWR 5000 Windy Hill Drive 5/24/2021 5/24/2021 SSO PUD reported spill to NCDWR 11310 Involute Place 6/22/2021 6/22/2021 Complaint of paint spill near storm inlet Investigated and found not to be a water quality concern; no further action taken 20 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Address Date Received Date Responded Description Action Taken 4023 Gregory Lane 6/16/2021 6/16/2021 Complaint of sewer discharge on property Investigated and found not to be a water quality concern; no further action taken 2108 E Millbrook Road 6/7/2021 6/7/2021 Complaint of wash runoff from car wash Investigated and found not to be a water quality concern; no further action taken Glenwood Ave @ Harvey Street 6/3/2021 6/3/2021 Fuel spill from vehicle accident during rain event Investigated and found not to be a water quality concern; no further action taken 2708 South Saunders Street 6/23/2021 6/28/2021 Complaint of runoff from car wash entering storm inlet Warning letter issued 4325 Glenwood Avenue 6/7/2021 6/8/2021 Grease trap overflowing into storm inlet NOV issued 8816 Gulf Court 6/14/2021 6/14/2021 Complaint of beer waste leaking into storm inlet NOV issued 5301 Old Poole Road 6/22/2021 6/23/2021 Complaint of stone cutting dust carried by runoff into storm inlet NOV issued 6601 Times Drive 6/29/2021 6/29/2021 SSO PUD reported spill to NCDWR 10210 Sablewood Drive 7/5/2021 7/6/2021 White substance in parking lot Warning letter issued 10536 Swerling Way 7/19/2021 7/19/2021 Trash in storm drain Referred to TFS 521 Brent Road 7/19/2021 7/19/2021 Overflowing cleanouts maintained by Public Utilities Forwarded to PUD 5041 Six Forks Road 7/29/2021 7/29/2021 Broken glass in storm drain Referred to TFS 9211 Calabria Drive, #110 7/29/2021 7/29/2021 Trash in storm drain Refereed to TFS 2001 Poole Road 7/14/2021 7/15/2021 Evidence of past wastewater and washing near storm drain Warning letter issued 2540 Westinghouse Boulevard 7/7/2021 7/7/2021 Fuel spill into catch basins and constructed wetland Summary Memorandum Issued 3316 Alleghany Drive 7/8/2021 7/8/2021 SSO PUD reported spill to NCDWR 2739 Rothgeb Drive 7/8/2021 7/8/2021 SSO PUD reported spill to NCDWR 2220 Grantland Avenue 7/8/2021 7/8/2021 SSO PUD reported spill to NCDWR 5532 Neuse View Drive 7/8/2021 7/8/2021 SSO PUD reported spill to NCDWR 556 Dacian Road 7/8/2021 7/8/2021 SSO PUD reported spill to NCDWR 1020 Sage Green Court 8/9/2021 8/9/2021 Grass clippings in catch basin Referred to TFS 21 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Address Date Received Date Responded Description Action Taken Lewis Farm Road & Banbury Road 8/9/2021 8/9/2021 Natural channel erosion Investigated and found not to be a water quality concern; no further action taken Martin Street & Salisbury Street 8/17/2021 8/17/2021 Gel tablets and marbles in catch basin Investigated and found not to be a water quality concern; no further action taken 3500 Rock Creek Drive 8/30/2021 8/30/2021 SS tap not connected to main SS line Forwarded to PUD 1301 Mordecai Drive 8/10/2021 8/10/2021 Styrofoam waste from construction in curb line Warning letter issued 3700 New Bern Avenue 8/17/2021 8/17/2021 Possible fuel spill Warning letter issued 300 Acorn Street 8/30/2021 8/30/2021 Hydraulic spill residue in curb line Warning letter issued 10532 Swerling Way 8/30/2021 8/30/2021 Trash in catch basin Warning letter issued 5101 Glenwood Avenue 8/4/2021 8/4/2021 SSO PUD reported spill to NCDWR 720 Pershing Road 8/10/2021 8/10/2021 Concrete slurry entering adjacent property and stormwater pipe NOV issued 5621 Louisburg Road 8/12/2021 8/12/2021 Grease and SS overflow into parking lot NOV issued 2518 Clark Avenue 8/16/2021 8/17/2021 Paint residue in curb line NOV issued 8471 Garvey Drive 8/20/2021 8/20/2021 Grease trap overflow into ditch NOV issued 14307 Foxcroft Road 8/24/2021 8/24/2021 Private SS tap overflow into curb line NOV issued 7900 Audubon Drive 8/25/2021 8/25/2021 Hydraulic fluid spill on neighborhood streets Summary Memorandum issued 105 Idlewild Avenue 8/30/2021 8/30/2021 Septic tank overflowing into yard NOV issued 1510 Graduate Lane 9/16/2021 9/16/2021 SSO PUD reported spill to NCDWR 741 Bishops Park Drive 9/7/2021 9/8/2021 Report of pressure washer water and paint being discharged into storm drain Warning letter issued 917 Willow Run South Drive 9/23/2021 9/23/2021 SSO PUD reported spill to NCDWR 2113 Ridge Road 9/27/2021 9/27/2021 Possible de-watering of chlorinated pool water Investigated and found not to be a water quality concern; no further action taken 6615 Falls of Neuse Road 9/14/2021 9/14/2021 Overflowing grease trap into parking lot Warning letter issued 411 W Morgan Street 9/20/2021 9/20/2021 Grease trap spill onto parking lot Warning letter issued 1113 Temple Street 9/28/2021 9/28/2021 Turbidity in creek Investigated and found not to be a water quality concern; no further action taken 22 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Address Date Received Date Responded Description Action Taken 4200 Glenwood Avenue 9/29/2021 9/29/2021 Possible <5 gallons of oil had left NCDOT ROW but did not have potential to impact surface waters Investigated and found not to be a water quality concern; no further action taken 15267 Tryon Road 9/30/2021 9/30/2021 Possible wash water from the golf carts washing draining to road Investigated and found not to be a water quality concern; no further action taken NCDWR = North Carolina Division of Water Resources NOV = Notice of Violation PUD = Public Utilities Department SWS = Solid Waste Services SSO = Sanitary Sewer Overflow UST = Underground Storage Tank RFD = Raleigh Fire Department TFS = Transportation Field Services RPD = Raleigh Police Department NCDOT = NC Dept. of Transportation ROW = Right-Of-Way SS = Sanitary Sewer Section E: Construction Site Runoff Controls E.1 Program Narrative The City has had active construction site runoff control efforts (sedimentation and erosion control) since the 1970s. This program is delegated and overseen by the North Carolina Department of Environmental Quality (NCDEQ). This program includes ordinances, plan review, permitting, inspection, education, and enforcement activities. The City receives and responds to calls and concerns from citizens on a regular basis. All related ordinance changes are noticed and subject to public hearing prior to adoption. For all projects that disturb greater than one acre, a permit condition is applied which states that a NPDES construction permit is required, and that application should be made to NCDEQ for coverage. In addition, all publicly funded projects that disturb greater than one acre are required to obtain Erosion and Sediment Control plan approval through NCDEQ. E.2 Best Management Practices Permit Reference/BMP Reporting Metric(s) 2020-2021 Part II Section E.2 (a) The permittee has a delegated or authorized Sediment and Erosion Control Program. As such, to the extent authorized by law, the permittee is responsible for compliance with the Sediment Pollution Control Act of 1973 and Chapter 4 of Title 15A of the North Carolina Administrative Code. The delegated or authorized Sediment and Erosion Control Program effectively meets the MEP standard for Construction Site Runoff Controls by permitting and controlling development activities disturbing one or more acres of land surface and those activities less than one acre that are part of a larger common plan of development as authorized under the Sediment Pollution Control Act of 1973 and Chapter 4 of Title 15A of the North Carolina Administrative Code. Report number of inspections and enforcement activities conducted Inspections: 17,868 NOVs: 18 Civil Penalties: 2 23 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Section F: Post-construction Site Runoff Controls F.1 Program Narrative The City’s post-construction site runoff controls remain in compliance with the City’s MS4 permit through the Neuse Nutrient Sensitive Waters Management Strategy and Water Supply Watershed programs. The City implements the Neuse Nutrient Sensitive Waters Management Strategy (15A NCAC 2B .0251) throughout the planning jurisdiction of Raleigh. Water Supply Watershed IV (WS-IV) Programs (15A NCAC 2H .0216) are implemented within the Falls Lake watershed, Swift Creek watershed, and Richland Creek watershed. The City’s post-construction site runoff controls are deemed compliant with the implementation of the above-mentioned program measures. The City has set up a private maintenance policy for owners of private properties with post-construction stormwater control measures (SCMs). Every year, the private property owner must have a licensed professional engineer or landscape architect certify that the SCM is functioning properly and must send that certification to the City. If these inspections and certifications are not made, then notification and enforcement actions, including issuance of civil penalties, are taken. Permit Reference/BMP Reporting Metric(s) 2020-2021 Part II Section E.2 (b) The NCG010000 permit establishes requirements for construction site operators to control waste such as discarded building materials, concrete truck washout, chemicals, litter, and sanitary waste at the construction site that may cause adverse impacts to water quality. N/A, see reporting metrics in Part II Section E.2.a and Part II Section D N/A Part II Section E.2 (c) The permittee shall provide and promote a means for the public to notify the appropriate authorities of observed erosion and sedimentation problems. The permittee may implement a plan promoting the existence of the DEQ “Stop Mud” hotline (1-866- STOPMUD) to meet the requirements of this paragraph. N/A, see reporting metrics in Part II Section B N/A Part II Section E.2 (d) For new development and redevelopment projects to be built within the permittee’s planning jurisdiction by entities with eminent domain authority, the permittee shall, to the maximum extent practicable, coordinate the approval of the construction site runoff control with the NCDEQ/DEMLR. Report number of site plans that required NCDEQ coordination The City issued 105 land disturbance permits that required NPDES construction permit coverage through NCDEQ/DEMLR 24 Stormwater MS4 Permit Annual Report Permit No. NCS000245 F.3 Best Management Practices Permit Reference/BMP Reporting Metric(s) 2020-2021 Part II Section F.2 (a) Post- construction stormwater management program N/A, see reporting metrics documented in Part II Section A N/A Part II Section F.2 (b) Strategies which include SCMs appropriate for the MS4 Report number of sites with SCMs 1,155 Report number of sites where SCM inspections have been received 1,029 Report SCM enforcement activities 38 NOVs issued; $10,000 in civil penalties Part II Section F.2 (c) Deed restriction and protective covenants Verify that mechanisms such as recorded deed restrictions, plats, and/or protective covenants are provided so that development activities maintain the project consistent with approved plans Plat maps and maintenance easements are mechanisms utilized to ensure SCMs are maintained and consistent with the approved plans Part II Section F.2 (d) Operation and maintenance plan Report number of sites with newly approved operation and maintenance plans 76 Part II Section F.2 (e) Educational materials and training for developers Report types of fact sheets/educational brochures developed and/or maintained Web-based; Annual Inspection requirements, As- Built requirements, Outreach centered around Stormwater Design Manual Update Report training events held for developers and number of participants Quarterly Development Stakeholder Meetings held. At these meetings, updates and stormwater training given for all in attendance. These were held virtually this past year and averaged about 12 developer representatives attending. Section G: Pollution Prevention and Good Housekeeping for Municipal Operations G.1 Program Narrative During this reporting period, the City’s Stormwater Management Division contracted with a consultant to assist with the further development of the pollution prevention and good housekeeping program. Currently the Stormwater Management Division has developed and implemented a facility inventory, 25 Stormwater MS4 Permit Annual Report Permit No. NCS000245 inspection program, Site Pollution Prevention Plans (SPPPs) and Stormwater Pollution Prevention Plans (SWPPPs), spill response guidance, and staff training. G.2 Best Management Practices Permit Reference/BMP Reporting Metric(s) 2020-2021 Part II Section G.2 (a) Inventory of municipal facilities and operations Report inventory of facilities determined to have significant potential for generating polluted stormwater runoff 38 facilities; see Table G-1 below Report number of municipal SCMs by type 94 Total: Wet Pond: 8 UG Detention: 6 Swale: 1 Sand Filter: 3 Cistern: 10 Permeable Pavement: 3 Level Spreader w/ Filter Strip: 3 Green Roof: 3 Filterra: 14 Dry Pond: 10 Wetland: 8 Bioretention: 25 Part II Section G.2 (b) Inspection and maintenance program for municipal facilities and operations Report number of facilities inspected 62 facilities were inspected Report corrective actions taken at municipal facilities or operations SPPPs and SWPPPs have been developed for 17 facilities during this reporting year and are in final draft form Part II Section G.2 (c) SPPPs for municipal facilities Report number of facilities with SPPPs/SWPPPs. 38 facilities have SWPPPs/SPPPs in either complete or draft form Part II Section G.2 (d) Spill response procedures for municipal facilities and operations Report number of spill response procedures developed/maintained A city-wide spill response document is in final draft stage with a consultant Part II Section G.2 (e) Prevent or minimize contamination of stormwater runoff from all areas used for vehicle and equipment cleaning Report number of facilities performing vehicle and equipment cleaning operations 10 Report actions taken to prevent or minimize stormwater runoff from vehicle and equipment cleaning Stormwater staff have inspected all facilities where vehicle and equipment cleaning occur. Several facilities have and maintain oil/water separators, and SPPPs or SWPPPs have been completed or are in final draft form for these facilities. Part II Section G.2 (f) Streets, roads, and public parking lots maintenance Report schedule of maintenance activities All streets are scheduled to be swept twice per year. Adherence to this schedule is contingent on weather. 26 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Permit Reference/BMP Reporting Metric(s) 2020-2021 Part II Section G.2 (g) Inspection and Maintenance (I&M) for municipally-owned or maintained stormwater control measures (SCMs) and the storm sewer system. Report number of municipal SCMs inspected 94; all City-owned regulatory compliance SCMs installed prior to this reporting period have been inspected and certified reports have been submitted. Report length or number of storm sewer conveyance system components inspected Number of bridges inspected: 0 Number of crossline conveyances (culverts) inspected: 1,374 Linear footage of drainage system that has had CCTV inspection: 105,365 lf Linear footage of drainage system that has pole camera inspection: 112,366 lf Number of catch basins inspected: 1,652 Number of junctions inspected: 40 Report maintenance and repair actions Number of storm assets flushed and/or vacuumed: 771 Linear feet of stormwater pipe flushed and/or vacuumed: 22,326 lf Number of crossline conveyances (culverts) maintained: 930 Number of inlet/junction tops reset: 496 Number of inlets/junctions maintained: 1,296 Number of pipes repaired/replaced: 96 Linear feet or channels redefined: 10,705 lf Number of bridges repaired: 2 Number of culverts repaired: 4 Number of catch basins repaired: 542 Number of junctions repaired: 16 Replacement: 27 pipes, 24 inlets, 3 junctions Report schedule of maintenance activities Inlets and accessible junctions are inspected on a 3-year rotation. Pole camera and CCTV inspection are performed based on need and as required to support the asset management and paving programs. Repairs and other maintenance are made on an as-needed basis Part II Section G.2 (h) Staff training Report types of training provided and number of staff who completed PPGH training 686 City staff completed the PPGH training module via the City’s iLearn portal 27 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Table G-1: PPGH inventory of facilities that have high potential to generate polluted stormwater runoff Facility Name City Department Lake Woodard (PUD) Public Utilities Northeast Remote Operations (Burwell St) VFS/Parks COR Paratransit Operations Facility Transportation Downtown Remote Operations Engineering Services/Transportation Raleigh Transit Operations Facility Go Raleigh New Bern Avenue Maintenance Facility Raleigh Fire Department/Engineering Services Solid Waste-Wilders Grove Service Center Solid Waste Services Yard Waste Facility Solid Waste, Yard Waste Facility Smith Creek WWTP Public Utilities Little Creek WWTP Public Utilities Buffaloe Road Athletic Park Parks, Recreation and Cultural Resources Walnut Creek Park North Parks, Recreation and Cultural Resources Ridge Road Pool Parks, Recreation and Cultural Resources Raleigh Fire Department Facility #1 Raleigh Fire Department Mt. Herman Rd Operation Facility Transportation Biltmore Hills Park Parks, Recreation and Cultural Resources Millbrook-Exchange Park Parks, Recreation and Cultural Resources Pullen Park Parks, Recreation and Cultural Resources Optimist Park Parks, Recreation and Cultural Resources Longview Pool Parks, Recreation and Cultural Resources Neuse River Resource Recovery Facility Public Utilities Dempsey E. Benton Water Treatment Plant Public Utilities E. M. Johnson Water Treatment Plant Public Utilities Raleigh Union Station Transportation Bain Odor Control Station Public Utilities Lake Johnson Parks, Recreation and Cultural Resources Dorothea Dix Park Parks, Recreation and Cultural Resources Keeter Training Center Raleigh Fire Department Marsh Creek Facility Parks, Recreation and Cultural Resources North Raleigh Operations Facility Public Utilities South Raleigh Operations Facility Public Utilities East Raleigh Operations Facility Public Utilities E.M. Johnson Water Raw Water Intake Public Utilities Walnut Creek Odor Control and Pump Station Public Utilities Crabtree Creek Odor Control & Pump Station Public Utilities Marsh Creek Odor Control Station Public Utilities Buffaloe Road Odor Control Station Public Utilities Hwy 50 Odor Control Station Public Utilities 28 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Section H: Program to Monitor and Evaluate Stormwater Discharges to Municipal Systems H.1 Program Narrative The City maintains an inventory of permitted hazardous waste treatment, disposal, and recovery facilities, industrial facilities that are subject to Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 (SARA), and industrial facilities identified with an industrial activity permitted to discharge stormwater to the permittee’s MS4. The City’s program prioritizes and inspects City-owned facilities with Stormwater NPDES Industrial Permits annually and privately-owned facilities with Stormwater NPDES Industrial Permits at least once every three years. Non-exposure sites permitted through the NCDEQ are inspected once every permit cycle. H.2 Best Management Practices Permit Reference/BMP Reporting Metric(s) 2020-2021 Part II Section H.2 (a) Maintain an inventory of industrial facilities Report number of industrial facilities identified within the City’s corporate limits 75 Part II Section H.2 (b) Inspection program Report number of facility inspections conducted 31 Identify program priorities City-owned facilities – inspected annually Privately-owned facilities – inspected once every three years Non-exposure sites – inspected once every permit cycle Part II Section H.2 (c) Evaluate industrial facilities discharging stormwater to the City’s MS4 Report number of deficiencies identified and forwarded to enforcement authority (NCDEQ) 2; NCG240012 and NCG200335 Section I: Water Quality Assessment and Monitoring I.1 Program Narrative The City has developed and implemented a Water Quality Assessment and Monitoring Program that identifies monitoring locations, a monitoring schedule, monitoring parameters, sample data analysis, and data evaluation and assessment. I.2 Best Management Practices Permit Reference/BMP Reporting Metric(s) 2020-2021 Part II Section I.2 (a) Water Quality Report updates and revisions to the monitoring plan Updated sampling map for NPDES sites, laboratory methods for 29 Stormwater MS4 Permit Annual Report Permit No. NCS000245 Permit Reference/BMP Reporting Metric(s) 2020-2021 Assessment and Monitoring Plan sample constituents, and SOP information Part II Section I.2 (b) Water quality monitoring Report number of stream sites monitored 18 Report number of samples collected 1,080 Report parameters analyzed Total suspended solids, ammonia, total Kjeldahl nitrogen, nitrate/nitrite, total nitrogen (sum of TKN and NO3/NO2, not collected in the field), calcium, copper, magnesium, total phosphorus, zinc, total hardness, turbidity, E. coli Report trends in data from stream sites monitored For the resulting dataset, several constituents reported high rates of non-detect values: zinc (91%, reporting limit .010 mg/L), ammonia (97%, reporting limit 0.10 mg/L), and copper (96%, reporting limit 0.0020 mg/L). Notably total phosphorus also reported non- detect values at a high rate (63%, reporting limit 0.050 mg/L). Section J: Total Maximum Daily Loads J.1 Program Narrative The following TMDLs within Raleigh’s MS4 (corporate limits of the City of Raleigh) are noted in Section 2.5 and Table 2 of the SWMP: • Falls Lake • Neuse River Estuary • Pigeon House Branch • Perry Creek The Falls Lake and Neuse River Estuary TMDLs are regional TMDLs. The City is addressing the Falls Lake TMDL through its participation in the ongoing 4B Nutrient Management Strategy in collaboration with other municipalities through the Upper Neuse River Basin Association. The City is addressing the Neuse River Estuary TMDL through its implementation of the Nutrient Sensitiv e Waters Management Strategy and City ordinances adopted as required by State of North Carolina Neuse Nutrient Strategy Rules. The Pigeon House Branch and Perry Creek TMDLs are local TMDLs. A portion of the Perry Creek watershed is within Raleigh's MS4, and all of the Pigeon House Branch watershed is within Raleigh's MS4. Because NCDEQ has not established numerical Waste Load Allocations (WLAs) for these TMDLs between the City of Raleigh and other entities identified in the TMDL documents, the City has not developed TMDL plans for these watersheds. In late 2021 the City will contract for consulting services to begin TMDL planning for these watersheds in accordance with Part II.J.4 of the City's MS4 permit, which calls for the City to evaluate strategies and implement best management practices to address pollutants of concern in these watersheds within Raleigh's MS4. 30 Stormwater MS4 Permit Annual Report Permit No. NCS000245 J.2 Best Management Practices Permit Reference/BMP Reporting Metric(s) 2020-2021 Part II Section J.3 (a) Identify, describe, and map watershed, outfalls, and streams Report TMDLs with WLAs within the MS4 N/A Report changes in outfall inventory that may be contributing to impairment of identified streams N/A based on current data. Part II Section J.3 (b) Evaluate existing measures N/A, Report pollutants of concern and measures taken for reduction N/A Part II Section J.3 (c) Assessment of available monitoring data N/A, Report monitoring data summary and data trends N/A Part II Section J.3 (d) Monitoring Plan N/A, Report updates to monitoring plan N/A Part II Section J.3 (e) Additional Measures N/A, Report additional measures taken N/A Part II Section J.3 (f) Implementation Plan N/A, Report achievement of schedule milestones N/A Part II Section J.3 (g) Incremental Success N/A, Report successes N/A Part II Section J.3 (h) Reporting N/A Report annual assessment outcomes N/A