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NCS000444_Lowell MS4 AUDIT REPORT_20191030
MUNICIPAL SEPARATE STORM SEWER SYSTEM (MS4) PROGRAM AUDIT REPORT NPDES PERMIT NO. NCS000444 Lowell, NORTH CAROLINA 101 W. 1St Street Audit Date: October 30, 2019 Report Date: January 6, 2020 North Carolina Department of Environmental Quality Division of Energy, Mineral & Land Resources Stormwater Program 512 N. Salisbury Street, 9th floor 1612 Mail Service Center Raleigh, NC 27699-1612 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 (This page intentionally left blank) Audit Date: October 30, 2019 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 TABLE OF CONTENTS AuditDetails..................................................................................................................................................1 PermitteeInformation..................................................................................................................................2 SupportingDocuments..................................................................................................................................3 Program Implementation, Documentation & Assessment...........................................................................4 Public Education and Outreach.....................................................................................................................7 Public Involvement and Participation...........................................................................................................9 Illicit Discharge Detection and Elimination (IDDE)......................................................................................10 ConstructionSite Runoff Controls...............................................................................................................12 Post -Construction Site Runoff Controls......................................................................................................15 Pollution Prevention and Good Housekeeping for Municipal Operations..................................................19 Total Maximum Daily Loads(TMDLs)............................................................. Error! Bookmark not defined. Site Visit Evaluation: Municipal Facility No. 1.............................................................................................21 Site Visit Evaluation: Municipal Facility No. 2................................................ Error! Bookmark not defined. Site Visit Evaluation: MS4 Outfall No. 1......................................................................................................23 Site Visit Evaluation: MS4 Outfall No. 2......................................................................................................25 Site Visit Evaluation: Construction Site No. 1..............................................................................................27 Site Visit Evaluation: Construction Site No. 2..............................................................................................28 Site Visit Evaluation: Post -Construction Stormwater Control Measure No. 1............................................29 Site Visit Evaluation: Post -Construction Stormwater Control Measure No. 2............................................30 Appendix A: Supporting Documents Appendix B: Photograph Log DISCLAIMER This audit consists of an evaluation of program compliance with the issued permit and implementation of the approved Stormwater Management Plan. This audit report does not include a review of all program components, and program deficiencies in addition to those noted may be present. The permittee is required to assess program progress and permit compliance, and to implement the approved Stormwater Management Plan in accordance with the issued permit. Audit Date: October 30, 2019 ii MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 This page intentionally left blank Audit Date: October 30, 2019 iii MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Supporting Documents Item Plumber Document Title When Provided (Prior to/During/After) 1 Stormwater Ordinance Prior 2 Map of Phase II MS4 Outfalls Prior 3 MoU SW Interlocal Agreement Prior 4 Regional Stormwater Partnership FY 19 Yearly Report During 5 Gaston County Department of Natural Resources Educator Yearly Report During 6 Draft Stormwater Management Plan During 7 Water Pollution Flyer During 8 Leaf Collection Flyer During 9 2 Gaston County Post Construction Stormwater Inspection Reports During 10 2 Gaston County Construction Stormwater Inspection Reports During 11 Storm Water Response Forms — IDDE tracking During 12 Regional Stormwater Partnership Workshop Flyer During Audit Date(s): October 30, 2019 Page 3 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Audit Details Audit ID Number: Audit Date(s): NCS000444_Lowell MS4 Audit_20191030 October 30, 2019 Minimum Control Measures Evaluated: © Program Implementation, Documentation & Assessment © Public Education & Outreach 0 Public Involvement & Participation ❑X Illicit Discharge Detection & Elimination ❑ Construction Site Runoff Controls — No delegated Sediment and Erosion Control Program © Construction Site Runoff Controls — Delegated Sediment and Erosion Control Program © Post -Construction Site Runoff Controls ® Pollution Prevention and Good Housekeeping for Municipal Operations ❑ Total Maximum Daily Loads (TMDLs) Field Site Visits: ❑X Municipal Facilities. Number visited: 1 0 MS4 Outfalls. Number visited: 2 © Construction Sites. Number visited: 2 ❑X Post -Construction Stormwater Runoff Controls. Number visited: 2 ❑ Other: Number visited: Choose an item. ❑ Other: Number visited: Choose an item. Inspector(s) Conducting Audit Name, Title Oreani gVgn James Moore NC DEQ Lily Kay NC DEQ Audit Report Author: Date: Signature Audit Repor Autho • Date Signature L im Audit Date(s): October 30, 2019 Page 1 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Perrnittee Information MS4 Permittee Name: Town of Lowell Permit Effective Date: Permit Expiration Date: 02/20/2017 02/19/2022 City, State, ZIP: Lowell, NC 28098 Date of Last M54 Inspection/Audit: 09/26/2014 Co-permittee(s), if applicable: Permit Owner of Record: Kevin Krouse, City Manager Primary MS4 Representatives Participating in Audit Name, Title Organization Scott Attaway Lowell , Development Services Administrator John Boerger Gaston County, Sediment Inspector Jody Alm Gaston County, Stormwater Administrator Kevin Krouse Lowell, City Manager Thomas Shrewsberry Lowell, Public Works Director MS4 Receiving Waters Waterbody Classification Impairments South Fork Catawba River N/A Duharts Creek, UT N/A Audit Date(s): October 30, 2019 Page 2 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Supporting Documents Item When Provided NumberDocument Title 0jart®jEurinf/ma:€3o 1 Stormwater Ordinance Prior 2 Map of Phase II MS4 Outfalls Prior 3 MoU SW Interlocal Agreement Prior 4 Regional Stormwater Partnership FY 19 Yearly Report During 5 Gaston County Department of Natural Resources Educator Yearly Report During 6 Draft Stormwater Management Plan During 7 Water Pollution Flyer During 8 Leaf Collection Flyer During 9 2 Gaston County Post Construction Stormwater Inspection Reports During 10 2 Gaston County Construction Stormwater Inspection Reports During 11 Storm Water Response Forms — IDDE tracking During 12 Regional Stormwater Partnership Workshop Flyer During Audit Date(s): October 30, 2019 Page 3 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Program Implementation, Documentation & Assessment Staff Interviewed: Scott Attaway, Development Services Administrator — Office (Name, Title, Role) Thomas Shrewsberry, Public Works Director — Field i�er°railrtaS:if�rt I>rf}grf�rrj Requirement S#atus Supporting Doe No. II.A.3 The permittee maintained adequate funding and staffing to implement and manage Staffing and the provisions of the Stormwater Plan and meet all requirements of the permit. Yes --- Funding The Stormwater Plan identifies a specific position(s) responsible for the overall coordination, implementation, and revision to the Plan. Yes --- Responsibilities for all components of the Stormwater Plan are documented and position(s) assignments provided. Yes --- The permittee is current on payment of invoiced administering and compliance monitoring fees (see stormwater e-payments on DEMLR MS4 web page). Yes --- The Town pays for the program through the general funds. The draft SWMP does identify the responsible parties for implementing parts of the plan. The Town does not have, nor has it been operating under, an approved Stormwater Management Plan. II.A.2 Stormwater The permittee evaluated the performance and effectiveness of the program Plan components at least annually. No --- Implementation and Evaluation If yes, the permittee used the results of the evaluation to modify the program Not components as necessary to accomplish the intent of the Stormwater Program. Applicable Did the permitted MS4 discharges cause or contribute to non -attainment of an applicable water quality standard? No --- If yes, did the permittee expand or better tailor its BMPs accordingly to address Not the non -attainment? Applicable The Town has not documented annual evaluations. II.A.3 Keeping the The permittee kept the Stormwater Plan up to date. No --- Stormwater Plan Up to Date I The permittee notified DEMLR of any updates to the Stormwater Plan. I No --- Comments (Indicate the date of latest Stormwater Plan and describe the nature of any updates, if applicable). The Town does not have, nor has it been operating under, an approved Stormwater Management Plan. Audit Date(s): October 30, 2019 Page 4 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Program Implementation, Documentation & Assessment II.A.4 Availability The permittee kept an up-to-date version of its Stormwater Plan available to the of the Stormwater Division and the public online. No --- Plan The online materials included ordinances, or other regulatory mechanisms, or a list identifying the ordinances, or other regulatory mechanisms, providing the legal Yes --- authority necessary to implement and enforce the requirements of the permit. Comments (Note what materials are available on line) https://www.lowellnc.com/222/Code-of-Ordinances The Town does not have, nor has it been operating under, an approved Stormwater Management Plan. Ii.A.3 & II.A.5 Stormwater Plan Did DEMrequire a modification to the Stormwater Plan? NotLR Reviewed Modifications If yes, did the permittee complete the modifications in accordance with the Not established deadline? Applicable - The Town does not have, nor has it been operating under, an approved Stormwater Management Plan. II.A.6 Sharing Responsibility Are any control measures implemented by an entity other than the permittee? Yes 3 If yes, is there a written agreement in place? Yes 3 Gaston County and Regional Stormwater Partnership implement parts of the Public Education and Outreach minimum control measure. Gaston County Natural Resources Department implements the Construction and Post Construction Stormwater minimum control measures. IL.A.7 The permittee maintained written procedures for implementing the six minimum Written control measures. No -- Procedures Written procedures identified specific action steps, schedules, resources and responsibilities for implementing the six minimum measures. No --- The Town has not maintained any written procedures. 111_A The permittee maintained documentation of all program components including, but Program not limited to, inspections, maintenance activities, educational programs, Partial 3 Documentation implementation of BMPs, enforcement actions etc., on file for a period of five years. Comments (List the specific program components that do not have adequate documentation on file and why, if applicable) Public Education and Outreach - Gaston County Natural Resources Educator keeps a list of all the schools and how many children she educated, and the Regional Stormwater Partnership publishes a yearly report. Construction Stormwater and Post Construction Stormwater — Gaston County maintains all records of plan applications, reviews, approvals/disapprovals, inspections and enforcement actions taken in a database. IDDE —The Town has not had any complaints to document and uses work orders to document these instances for internally found issues. Public Involvement — No documentation was available, but storm drain stickering events have taken place and the stickers were observed by NC DEQ staff in the field. Good Housekeeping — No documentation has been maintained. 111.13 The permittee submitted annual reports to the Department within twelve months Annual Report from the effective date of the permit (See Section III.B. for the annual reporting No --- Submittal period specific to this MS4). Audit Date(s): October 30, 2019 Page 5 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Program Implementation, Documentation & Assessment The permittee submitted subsequent annual reports every twelve months from the scheduled date of the first annual report submittal. No --- The Annual Reports included appropriate information to accurately describe the progress, status, and results of the permittee's Stormwater Plan, including, but not limited the following: 1. A detailed description of the status of implementation of the Stormwater Plan as a whole. This will include information on development and implementation Not of each major component of the Stormwater Plan for the past year and Applicable --- schedules and plans for the year following each report. 2. An adequate description and justification of any proposed changes to the Stormwater Plan. This will include descriptions and supporting information for Not the proposed changes and how these changes will impact the Stormwater Applicable - Plan (results, effectiveness, implementation schedule, etc.). 3. Documentation of any necessary changes to programs or practices for assessment of management measures implemented through the Stormwater Not Applicable Plan. 4. A summary of data accumulated as part of the Stormwater Plan throughout the year along with an assessment of what the data indicates in light of the Not Applicable Stormwater Plan. 5. An assessment of compliance with the permit, information on the establishment of appropriate legal authorities, inspections, and enforcement Not --- Applicable actions. Comments (Note dates that annual reports cover undercurrent permit and generally describe report deficiencies, if any) The Permittee has not submitted any annual reports. IV.B Annual Reporting The Annual Reports document the following: 1. A summary of past year activities, including where applicable, specific Not quantities achieved and summaries of enforcement actions. Applicable --- 2. A description of the effectiveness of each program component. Not --- Applicable 3. Planned activities and changes for the next reporting period, for each Not program component or activity. Applicable 4. Fiscal analysis. Not Applicable Comments (Note dates that annual reports cover under current permit and generally describe report deficiencies, if any) Annual reports have not been submitted previously. Audit Date(s): October 30, 2019 Page 6 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Public Education and Outreach Staff Interviewed: Scott Attaway, Development Services Administrator — festival tents (Name, Title, Role) Regional Stormwater Partnership Gaston county —Erin Hines, Natural Resources Educator Permit Citation Program Requi ement Mattis � support ng r3or No. 11.6.2.a Goals The permittee defined goals and objectives of the Local Public Education and and Objectives Outreach Program based on community wide issues. Yes 4, 5, 6 The Town is targeting mechanics shops this year with mailer, training public works personnel — fire and police, contractor does stormwater page and newsletter development, residential neighborhoods — no dumping stickers, new customer handout, Freedom festival booth. The Regional Stormwater Partnership (RSP) and the Gaston County Natural Resources educator supplied annual reports. The County reported how many children were educated in Lowell and the RSP reported advertising goals and targeting efforts through media. 11.B.2.b The permittee maintained a description of the target pollutants and/or stressors and Target Pollutants likely sources. Partial 4,5 The Permittee has not maintained a description of target pollutants and/or stressors and likely sources. II.B.2.c The permittee identified, assessed annually and updated the description of the target Target Audiences audiences likely to have significant storm water impacts and why they were selected. Partial 4,5 The Permittee's contractors have target audiences where the RSP targets audiences through media and Gaston County targets the schools. The Town has distributed Water Pollution and Leaf Collection Fliers. II.B.2.d Residential The permittee described issues, such as pollutants, the likely sources of those and Industrial/ pollutants, potential impacts, and the physical attributes of stormwater runoff in Yes 7,8 Commercial Issues their education/outreach program. The Permittee's contractors discuss pollutants, potential sources and impacts with school children. The Town has distributed Water Pollution and Leaf Collection Fliers to businesses and residents. 11.6.2.e Informational The permittee promoted and maintained an internet web site designed to convey the Partial --- Web Site program's message. https://www.lowelima.gov/170/Stormwater II.B.2.f Public Education The permittee distributed stormwater educational material to appropriate target Yes 7,8 Materials groups. The Town has distributed Water Pollution and Leaf Collection Fliers to businesses and residents. II.B.2.g The permittee promoted and maintained a stormwater hotline/helpline for the Hotline/Help Line purpose of public education and outreach. Yes --- City Hall phone number, website II.B.2.h The permittee's outreach program, including those elements implemented locally or through a cooperative agreement, included a combination of approaches designed to Yes --- reach the target audiences. Audit Date(s): October 30, 2019 Page 7 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Public Education and Outreach Public Education and Outreach For each media, event or activity, including those elements implemented locally or Program through a cooperative agreement the permittee estimated and recorded the extent Yes 4,5 of exposure. A cooperative agreement with Gaston County was available and gives them the authority over their construction and post construction program elements and provides some education in the local schools. A contract with RSP has been established for the public education and outreach program element. Audit Date(s): October 30, 2019 Page 8 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Public Involvement and Participation Staff Interviewed: Scott Attaway, Development Services Administrator (Name, Title, Role) Permit Citation Program Requirement Status Supporting Doc No. II.C.2.a Volunteer Community The permittee included and promoted volunteer opportunities designed to promote Involvement ongoing citizen participation. No --- Program The Permittee has not included and promoted volunteer opportunities designed to promote citizen participation. II.C.2.b Mechanism for The permittee provided and promoted a mechanism for public involvement that Not Public provides for input on stormwater issues and the stormwater program. Applicable Involvement II.C.2.c The permittee promoted and maintained a hotline/helpline for the purpose of public Hotline/Help Line involvement and participation. Yes --- City Hall phone number, website Audit Date(s): October 30, 2019 Page 9 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Illicit Discharge Detection and Elimination (IDDE) Staff Interviewed: Thomas Shrewsberry, Public Works Director (Name, Title, Scott Attaway, Development Services Administrator Role) Permit Citition Program Requirement Status ng No. F II.D.2.a IDDE Program The permittee maintained a written IDDE Program. Partial11 If yes, the written program includes provisions for program assessment and evaluation and integrating program. No --- The Town investigates complaints and has a Storm Water Response form to fill out through the process. However, no illicit discharges have been reported to the Town and an example was not available. The permittee maintained an IDDE ordinance or other regulatory mechanism(s) that II.D.2.b provides the legal authority to prohibit illicit connections and discharges to the MS4. Yes 1 Legal Authorities If yes, the ordinance applies throughout the corporate limits of the permittee. [Permit Part I.D] Yes --- II.D.2.c The permittee maintained a current map showing major outfalls* and receiving Storm Sewer No --- System Map strea ms. Comments A 2004-2005 map was developed by Gaston county which had pinned discharges, but the inventory is missing. Public works also maintains books on outfalls. II.D.2.d The permittee maintained a program for conducting dry weather flow field Dry Weather Flow observations in accordance with written procedures. No --- Program Public works investigates water leaks due to cost, but also looks for illicit discharges during dry weather. The Town employees walk all ditches checking for leaks and testing for chlorine. II.D.2.e The permittee maintained written procedures for conducting investigations of Investigation identified illicit discharges. No --- Procedures II.D.2.f For each case of an illicit discharge or potential illicit discharge, the permittee documented and tracked the Track and following: Document Investigations 1. The dates) the illicit discharge was observed Yes 11 2. The results of the investigation Yes 11 3. Any follow-up of the investigation Yes 11 4. The date the investigation was closed Yes 11 Audit Date(s): October 30, 2019 Page 10 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Illicit Discharge Detection and Elimination (IDDE) II.D.2.e Employee Training The permittee implemented and documented a training p p g program for appropriate municipal staff who, as part of their normal job responsibilities, may come into Yes contact with or otherwise observe an illicit discharge or illicit connection. An in-house training video from Partnership about illegal dumping and illicit discharges and discussion by already trained employees. II.D.2.h The permittee informed public employees of hazards associated with illegal Public Education discharges and improper disposal of waste. Yes 7 The permittee informed businesses of hazards associated with illegal discharges and improper disposal of waste. Yes 7 The permittee informed the general public of hazards associated with illegal discharges and improper disposal of waste. Yes 7 Some employees have been trained on pesticide application and a few have had stormwater pollution training. II.D.2.i The permittee promoted, publicized, and facilitated a reporting mechanism for the Public Reporting public to report illicit discharges. Yes --- Mechanism The permittee promoted, publicized, and facilitated a reporting mechanism for staff to report illicit discharges. Yes --- The permittee established and implemented response procedures for citizen requests/reports. Yes --- Website II- D.2.i The permittee implemented a mechanism to track the issuance of notices of violation Enforcement and enforcement actions administered by the permittee. Yes --- If yes, the mechanism includes the ability to identify chronic violators for initiation of actions to reduce noncompliance. Yes --- The Town uses a spreadsheet, monthly report, work orders, and the receptionist keeps a log on resident accounts. Audit Date(s): October 30, 2019 Page 11 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Construction Site Runoff Controls Staff Interviewed: Jody Alm, Gaston County Stormwater Administrator (Name, Title, Role) John Boerger, Gaston County, Sediment Inspector Program Delegation Status: ❑X The permittee has a delegated Sediment and Erosion Control Program and implements the North Carolina Sedimentation Pollution Control Act (SPCA) of 1973 components of this minimum measure (complete the permit citation and SPCA citation sections). ❑ The permittee does not have a delegated Sediment and Erosion Control Program and relies on DEMLR to comply with the North Carolina Sedimentation Pollution Control Act (SPCA) of 1973 components of this minimum measure (complete only the permit citation section). Permit Citation Program Requirement Status Supporting' Doc No. II.E.3 Construction Site Runoff Controls The permittee provides and promotes a means for the public to notify the [NPDES Permit No. appropriate authorities of observed erosion and sedimentation problems (e.g., Yes 3 NCS000435] promoting the existence of the DEQ DEMLR "Stop Mud" hotline). SPCA Citation Delegated Program Requirement Status supporting Doc No. 113A-60 Local erosion and The permittee has adopted an ordinance or other regulatory mechanism to enforce Yes 1 sedimentation the erosion and sedimentation control program. control programs (a) If yes, the ordinance meets or exceeds the minimum requirements of the SPCA. Yes 1 If yes, the ordinance applies throughout the corporate limits of the permittee. [Permit Part I.D] Yes 1 § 113A-60 Local erosion and The permittee collects a fee paid by each person who submits an erosion and sedimentation sedimentation control plan. Yes 1 control programs (d) $300 non-refundable plan review processing fee for each acre of disturbed land or any part of an acre of disturbed land (including off -site borrow and waste areas). No processing fee will be charged for a revised plan unless the revised plan contains an increase in the number of acres to be disturbed. Audit Date(s): October 30, 2019 Page 12 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Construction Site Runoff Controls 113A-60 Local Has any person initiated a land -disturbing activity (within the permittee's erosion and jurisdiction) for which an erosion and sedimentation control plan is required in the No --- sedimentation absence of an approved plan? control programs (e) If yes, the permittee has notified the North Carolina Sedimentation Control Not Commission of all such cases. Applicable - Has the permittee determined that a person engaged in a land -disturbing activity has failed to comply with an approved erosion and sedimentation control plan? No - If yes, has the permittee referred any such matters to the North Carolina Not Sedimentation Control Commission for inspection and enforcement? Applicable 113A-61 Local The permittee reviews each erosion and sedimentation control plan submitted to approval of erosion them and notifies the person submitting the plan that it has been approved, Yes 3 and sedimentation approved with modification, or disapproved within 30 days of receipt. control plans The permittee only approves an erosion and sedimentation control plan upon determining that it complies with all applicable State and local regulations. Yes 3 The permittee has disapproved of an erosion and sedimentation control plan in order to protect riparian buffers along surface waters. No If yes, the permittee notified the Director of the Division of Energy, Not Mineral, and Land Resources within 10 days of the disapproval. Applicable --- § 113A-61.1 Inspection of land- The certificate of approval of each erosion and sedimentation control plan disturbing activity; approved by the permittee includes a notice of the right to inspect. Yes 3 notice of violation (a) The permittee provides for inspection of land -disturbing activities to ensure compliance with the SPCA and to determine whether the measures required in an Yes 10 erosion and sedimentation control plan are effective. § 113A-61.1 When the permittee determines that a person engaged in land -disturbing activity Inspection of land- has failed to comply with the SPCA, the Permittee immediately issues a notice of YeT 3 disturbing activity; violation upon that person. notice of violation (c) Each notice of violation issued by the permittee specifies the date by which the person must comply. Yes 3 Each notice of violation issued by the permittee informs the person of the actions that need to be taken to comply. Yes 3 Audit Date(s): October 30, 2019 Page 13 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Construction Site Runoff Controls 113A-64 Penalties Does the permittee issue civil penalties as part of the erosion and sedimentation Yes --- program? Audit Date(s): October 30, 2019 Page 14 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Post -Construction Site Runoff Controls Staff Interviewed: Jody Alm, Gaston County Stormwater Administrator (Name, Title, Rote) Implementation (check all that apply): ❑ The permittee implements the components of this minimum measure. © The permittee relies upon another entity to implement the components of this minimum measure: Gaston County Department of Natural Resources ❑ The permittee implements the following deemed -compliant program(s), which meet NPDES MS4 post -construction requirements for the areas where implemented and in compliance with the specific program requirements as provided in 15A NCAC and noted below (Complete Session Law 2006-246 section below): ❑ Water Supply Watershed I (WS-1) — 15A NCAC 2B .0212 ❑ Water Supply Watershed II (WS-II) — 15A NCAC 213.0214 ❑ Water Supply Watershed III (WS-III) — 15A NCAC 26 .0215 ❑ Water Supply Watershed IV (WS-IV) —15A NCAC 2B .0216 ❑ Freshwater High Quality Waters (HQW) —15A NCAC 2H .1006 ❑ Freshwater Outstanding Resource Waters (ORW) — 15A NCAC 2H .1007 ❑ Neuse River Basin Nutrient Sensitive (NSW) Management Strategy —15A NCAC 213 .0235 ❑ Tar -Pamlico River Basin Nutrient Sensitive (NSW) Management Strategy — 15A NCAC 213 .0258 ❑ Randleman Lake Water Supply Watershed Nutrient Management Strategy —15A NCAC 213 .0251 ❑ Universal Stormwater Management Program —15A NCAC 2H .1020 Ordinance(s) (check all that apply): The permittee utilizes the following ordinances and/or regulatory authority to fulfill post construction minimum measure program requirements throughout the MS4 permitted area (check all that apply): ❑ DEQ model ordinance ❑ MS4 designed post -construction practices that meet or exceed 15A NCAC 02H .1000. ❑ DEQ approved comprehensive watershed plan ❑ DEQ approved ordinance for a deemed -compliant Program (see list above) Inctriirflnnc- For MS4s not implementing a S.L. 2006-246 deemed -compliant program, complete only the Permit Citation section below. For MS4s implementing a S.L. 2006-246 deemed -compliant program, complete the Session Law 2006-246 section below. If the MS4 does not implement a deemed -compliant program throughout the entire MS4 permitted area, then complete the Permit Citation section below for the permitted area(s) not covered under the S.L. 2006-246 deemed -compliant program. Audit Date(s): October 30, 2019 Page 15 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Post -Construction Site Runoff Controls Deemed -Compliant The permittee implements deemed -compliant Program requirements in Program(s) accordance with the applicable 15A NCAC rules. Yes 3 The permittee implements deemed -compliant Program requirements throughout the entire MS4 area (If not, also complete the Permit Citation section below.) Yes 3 The permittee applies deemed -compliant Program requirements to all federal, state and local government projects within the permitted MS4 area who do not Not have their own NPDES stormwater permit. Applicable The permittee included deemed -compliant Program reporting in their MS4 Annual Reports. The permittee included deemed -compliant Program implementation in their Stormwater Management Plan. No --- Comments Permit Citation Program Requirement II.F.2.a The permittee maintained an ordinance or other regulatory mechanism designed Legal Authority to meet the objectives of the Post -Construction Site Runoff Controls Stormwater Yes 1 Management Program. If yes, the ordinance applies throughout the corporate limits of the permittee (Verify permit coverage area listed in Part I.D of permit and modify Yes 3 accordingly). The permittee has the authority to review designs and proposals for new development and redevelopment to determine whether adequate stormwater Yes 3 control measures will be installed, implemented, and maintained. The permittee has the authority to request information such as stormwater plans, inspection reports, monitoring results, and other information deemed necessary to evaluate compliance with the Post -Construction Stormwater Management Yes 3 Program. The permittee has the authority to enter private property for the purpose of inspecting at reasonable times any facilities, equipment, practices, or operations Yes 3 related to stormwater discharges. The Permittee's local program with Gaston County maintains the post construction stormwater minimum control measure. II.F.2.b Stormwater Control The permittee utilizes strategies which include SCMs appropriate for the MS4. Yes --- Measures (SCMs) SCMs comply with 15A NCAC 02H .1000. Yes --- Audit Date(s): October 30, 2019 Page 16 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Post -Construction Site Runoff Controls II.F.2.c The permittee conducted site plan reviews of all new development and Plan Reviews redeveloped sites that disturb greater than or equal to one acre (including sites that disturb less than one acre that are part of a larger common plan of Yes 3 development or sale). If yes, the site plan reviews addressed how the project applicant meets the performance standards. Yes 3 If yes, the site plan reviews addressed how the project will ensure long-term maintenance. Yes 3 II.F.2.d The permittee maintained an inventory of projects with post -construction Inventory of Projects structural stormwater control measures installed and implemented at new Yes 2 development and redeveloped sites. The inventory included both public and private sector sites located within the permittee's corporate limits that are covered by its post -construction ordinance Yes 2 requirements. ILF.2.e The permittee provided mechanisms such as recorded deed restrictions and Deed Restrictions and Protective protective covenants that ensure development activities will maintain the project Yes 3 consistent with approved plans. Covenants II.F.2.f The permittee implemented or required an operation and maintenance plan for Mechanism to the long-term operation of the SCMs required by the program. Yes 9 Require Long-term Operation and The operation and maintenance plan required the owner of each SCM to perform Maintenance and maintain a record of annual inspections of each SCM. Yes 9 Annual inspection of permitted structural SCMs are required to be performed by a qualified professional. Yes 9 II.F.2.g The permittee conducted and documented inspections of each project site covered Inspections of under performance standards, at least one time during the permit term (Verify this Yes 9 Structural is a permit condition in Part II.F.2.g of permit and modify accordingly). Stormwater Control Before issuing a certificate of occupancy or temporary certificate of occupancy, the Measures permittee conducted a post -construction inspection to verify that the permittee's performance standards have been met or a bond is in place to guarantee Yes 9 completion (Verify this is a permit condition in Part II.F.2.g of permit and modify accordingly. The permittee developed and implemented a written inspection program for SCMs installed pursuant to the post -construction program(Verify this is a permit Yes 9 condition in Part II.F.2.g of permit and modify accordingly. The permittee documented and maintained records of inspections. Yes 9 The permittee documented and maintained records of enforcement actions. Yes 9 Audit Date(s): October 30, 2019 Page 17 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Post -Construction Site Runoff Controls 11I.F.2.11h The permittee made available through paper or electronic means, ordinances, Educational post -construction requirements, design standards checklists, and other materials Materials and appropriate for developers. Training for Note: New materials may be developed by the permittee, or the permittee may use Partial --- Developers materials adopted from other programs and adapted to the permittee's new development and redevelopment program. Gaston County has all this information on their website and conducts an annual training for developers. https://www.gastongov.com/government/departments/natural resources/stormwater control.php II.F.2.11 Enforcement The permittee tracked the issuance of notices of violation and enforcement actions. Yes --- If yes, the tracking mechanism included the ability to identify chronic violators for initiation of actions to reduce noncompliance. Yes --- Gaston County uses an in-house Database named Cesco. II.F.3.b The permittee fully complies with post construction program requirements on its Not New Development own publicly funded construction projects. Applicable -- II.F.3.c Does the MS4 have areas draining to Nutrient Sensitive Waters (NSW) pursuant to Not Nutrient Sensitive 15A NCAC 02H .0150? Applicable _ Waters If yes, does the permittee use SCMs that reduce nutrient loading in order to Not meet local program requirements. Applicable --- If yes, does the permittee also still incorporate the stormwater controls Not required for the project's density level. Applicable --- If yes, does the permittee also require documentation where it is not feasible to Not use SCMs that reduce nutrient loading. Applicable Comments (Provide reference for local requirements) II.F.3.d The permittee ensured that the design volumes of SCMs take into account the Design Volume runoff at build out from all surfaces draining to the system. Yes --- Where "streets" convey stormwater, the permittee designed SCMs to be sized to treat and control stormwater runoff from all surfaces draining to the SCM including Yes --- streets, driveways, and other impervious surfaces. Comments The design volumes are verified in the application review process. Audit Date(s): October 30, 2019 Page 18 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Pollution Prevention and Good Housekeeping fdt Municipal Operations Staff Interviewed: Thomas Shrewsberry, Public Works Director (Name, Title, Rote) Scott Attaway, Development Services Administrator Permit CR atio6t Program CI���yEaar �r�etat II E�tn��1s r�����rE tiny, II G.2.a The permittee maintained a current inventory of facilities and operations owned Facility Inventory and operated by the permittee with the potential for generating polluted partial --- stormwater runoff. The Permittee was able to verbally list all the municipal owned facilities. II.G.2.b The permittee maintained and implemented an 0&M program for municipally Operation and owned and operated facilities with the potential for generating polluted No --- Maintenance (O&M) stormwater runoff. for Facilities If yes, the 0&M program specifies the frequency of inspections. No --- If yes, the 0&M program specifies the frequency of routine maintenance No --- requirements. If yes, the permittee evaluated the 0&M program annually and updated it as Not necessary. Applicable Comments The Town has BMPs and conducts employee training, has identified issues and eliminated or protected, keeps spill kits and spill response station with oil dry, booms, spill containment area to stop flow, hazardous materials are kept in a cabinet, (2) 50-gallon drums of oil and all hydraulic fluids kept on a containment pallet. The Town's consultant does a yearly compliance inspection and training — Debbie Rogers, monthly staff safety meeting. Starting internal inspections with a form and are going to conduct quarterly. II.G.2.c Spill Response The permittee had written spill response procedures for municipal operations. Partial --- Procedures No written spill response procedures were made available, but the Permittee designates containment areas and train employees about the cleanup process. II.G.2.d Streets, The permittee evaluated existing and new BMPs that reduce polluted stormwater Roads, and Public runoff from municipally -owned streets, roads, and public parking lots within its Yes --- Parking Lots corporate limits annually. Maintenance If yes, the permittee evaluated the effectiveness of existing and new BMPs based on cost and the estimated quantity of pollutants removed. No --- The Town has removed 500 cubic yard leaves and 570 cubic yards of brush, they walk creeks during the dry, conduct brush collection weekly, collect bagged leaf and cleaning weekly, run the leaf vac Mon-Thurs from October until February and every two weeks other than that. ILG.2.f The permittee maintained and implemented an O&M program for the stormwater O&M for Catch sewer system including catch basins and conveyance systems that it owns and No --- Basins and Conveyance Systems maintains. The Town cleans storm drain catch basins before rain events and runs the leaf vac — curb and gutter in the dry monthly. Audit Date(s): October 30, 2019 Page 19 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Pollution Preventionjaga& Hojj&eping for Municipal Operations II.G.2.e The permittee maintained a current inventory of municipally -owned or operated Structural structural stormwater controls installed for compliance with the permittee's post- Not - Stormwater Controls construction ordinance. Applicable No new municipally owned or operated have been built recently. II.G.2.h The permittee maintained and implemented an O&M program for municipally - O&M for Structural owned or maintained structural stormwater controls installed for compliance with Not Stormwater Controls the permittee's post -construction ordinance. If yes, then: Applicable The O&M program specified the frequency of inspections and routine Not maintenance requirements. Applicable The permittee documented inspections of all municipally -owned or maintained Not structural stormwater controls. Applicable - The permittee inspected all municipally -owned or maintained structural Not stormwater controls in accordance with the schedule developed by permittee. Applicable _ The permittee maintained all municipally -owned or maintained structural Not stormwater controls in accordance with the schedule developed by permittee. Applicable - The permittee documented maintenance of all municipally -owned or Not I maintained structural stormwater controls. Applicable --- II.G.2.i The permittee ensured municipal employees are properly trained in pesticide, Pesticide, Herbicide herbicide and fertilizer application management. Yes --- and Fertilizer Application The permittee ensured contractors are properly trained in pesticide, herbicide and Not Management fertilizer application management. Applicable The permittee ensured all permits, certifications, and other measures for applicators are followed. Yes --- II.G.2.j The permittee implemented an employee training program for employees involved Staff Training in implementing p g pollution prevention and good housekeeping practices. No --- II.G.2.k The permittee described and implemented measures that prevent or minimize Vehicle and contamination of stormwater runoff from all areas used for vehicle and equipment Yes --- Equipment Cleaning cleaning. Vehicles are washed at the maintenance facility where the interior bay discharges to the sewer and large vehicles are washed at the sewer plant. Audit Date(s): October 30, 2019 Page 20 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Site Visit Evaluation: Municipal Facility No. 1 Facility Name: Public Works Date and Time of Site Visit: 10/31/2019 2:00 pm Facility Address: 109 Railroad Street. Lowell Facility Type (Vehicle Maintenance, Landscaping, etc.): Office, vehicle storage, vehicle maintenance Name of MS4 inspector(s) evaluated: James Moore and Lily Kay Most Recent MS4 Inspection (List date and name of inspector): N/A Names) and Title(s) of Facility Representative(s) Present During the Site Visit: Name Title Thomas Shrewsberry Public Works Director ---777777 Observations` Facility Documentation/Training Does the facility have a Stormwater Pollution Prevention Plan (SWPPP) or similar document? Is it facility -specific? No What type of stormwater training do facility employees receive? How often? Monthly safety meetings and training videos Inspector Training/Knowledge What type of stormwater training does the MS4 inspector receive? How often? RSP Did the MS4 inspector appear knowledgeable about Permit requirements for pollution prevention and good housekeeping? Yes Did the MS4 inspector appear knowledgeable about stormwater pollution prevention and good housekeeping? Yes Inspection Procedures Does the MS4 inspector's process include the use of a checklist or other standardized form? No Does the MS4 inspector's process include taking photos? No Does the MS4 inspector's process include reviewing the facility's SWPPP (or similar document)? N/A Audit Date(s): October 30, 2019 Page 21 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Site Visit Evaluation: Municipal Facility No.1 Does the MS4 inspector's process include walking the entire facility and inspecting all points of discharge? Yes Did the MS4 inspector miss any obvious areas of concern? If so, explain: outside metal storage and tractor leaks, but under cover Does the MS4 inspector's process include presenting the inspection findings to the facility contact? Yes Inspection Results Did the facility inspection result in any corrective actions to be implemented? If so, for what issue(s)? No If compliance corrective actions were identified, what timeline for correction/follow-up was provided? N/A Audit Date(s): October 30, 2019 Page 22 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Site Visit Evaluation: MS4 Outfall No.1 Outfall ID Number: 001 Date and Time of Site Visit: 10/30/2019 Outfall Location: Catawba Run in River Falls subdivision. Outfall Description (Pipe Material/Diameter, Culvert, etc.): 48" corrugated metal pipe Receiving Water: South Fork Catawba River Is Flow Present? If So, Describe (Color, Approximate Flow Rate, Sheen, Odor, Floatables/Debris, etc.): Good flow approximately 20 gal/min, no sheen, floatables, debris, or odor Most Recent Outfall Inspection/Screening (Date): Days Since Last Rainfall: Raining at time of inspection Inches: Name of MS4 Inspector(s) evaluated: Thomas Shrewberry, Public Works Director Observations Inspector Training/Knowledge What type of stormwater training does the MS4 inspector receive? How often? Yes, Gaston County Annual Meeting Did the MS4 inspector appear knowledgeable about illicit discharge indicators and investigations? Yes Inspection Procedures Does the inspector's process include the use of a checklist or other standardized form? No Does the inspector's process include taking photos? No Did the MS4 inspector miss any obvious potential illicit discharge indicators or maintenance issues? If so, what were they? No Audit Date(s): October 30, 2019 Page 23 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Site Visit Evaluation: MS4 Outfall No.1 Inspection Results Did the outfall inspection result in any work orders or maintenance requests? If so, for what issue(s)? No Will a follow-up outfall inspection be conducted? If so, for what reason? Yes, periodic inspection Notes/Comments/Recommendations Audit Date(s): October 30, 2019 Page 24 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Site Visit Evaluation: MS4 Outfall No. 2 Outfall ID Number: Date and Time of Site Visit: 002 10/30/2019 Outfall Location: Outfall Description (Pipe Material/Diameter, Culvert, etc.): Gist Street Lowell (1) 36" concrete pipe, (1) 24" concrete pipe, and (1) 12" corrugated plastic pipe Receiving Water: Is Flow Present? If So, Describe (Color, Approximate Flow Rate, South Fork Catawba River Sheen, Odor, Floatables/Debris, etc.): Good flow approximately 50 gal/min, no sheen, floatables, Most Recent Outfall Inspection/Screening (Date): debris, or odor. Good clarity Days Since Last Rainfall: Raining at the time of inspection Name of MS4 Inspector(s): Thomas Shrewsberry, Public Works Director Inches: f Inspector Training/Knowledge What type of stormwater training does the MS4 inspector receive? How often? Yes, Gaston County Annual Meeting Did the MS4 inspector appear knowledgeable about illicit discharge indicators and investigations? Yes Inspection Procedures Does the inspector's process include the use of a checklist or other standardized form? Obtain copy. No Does the inspector's process include taking photos? No Did the MS4 inspector miss any obvious potential illicit discharge indicators or maintenance issues? If so, what were they? No Audit Date(s): October 30, 2019 Page 25 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Site Visit Evaluation: MS4 Outfall No. 2 1 Inspection Results Did the outfall inspection result in any work orders or maintenance requests? If so, for what issue(s)? No Will a follow-up outfall inspection be conducted? If so, for what reason? Yes, periodic inspection I Notes/Comments/Recommendations I Audit Date(s): October 30, 2019 Page 26 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Site Visit Evaluation: Construction Site No.1 Site/Project Name: Hillbilly's BBQ Date and Time of Site Visit: 10/30/2019 3:00 pm Site/Project Address: 305 South Main Street Lowell Operator: D and E Foods, Inc. Project Type (Commercial, Industrial, Residential, CIP, Roadway, etc.): Commercial NCG Permit ID Number: NCG01 Disturbed Acreage: 2.0 Recent Enforcement Actions (Include Date): , None Name of MS4 Inspector(s) evaluated: John Boerger, Gaston County Sediment Inspector Name(s) and Title(s) of Site Representative(s) Present During the Site Visit: Name Title None Observations Site Documentation/Training Does the site have a Stormwater Pollution Prevention Plan (SWPPP) or similar document? Is it site -specific? Yes Does the site have approved erosion and sedimentation control plans onsite? Are they representative of current site conditions? Yes What type of stormwater training do site employees receive? How often? RSP annual meeting. Inspector Training/Knowledge What type of stormwater training does the MS4 inspector receive? How often? NC State certification Did the MS4 inspector appear knowledgeable about MS4 and NCGO10000 requirements for construction sites? Yes Did the MS4 inspector appear knowledgeable about erosion and sedimentation control/stormwater pollution prevention BMPs? Yes Inspection Procedures Does the MS4 inspector's process include the use of a checklist? Yes Does the MS4 inspector's process include taking photos? Yes Does the MS4 inspector's process include reviewing approved plans (erosion and sedimentation control and/or SWPPP)? Yes Does the MS4 inspector's process include walking the entire site and inspecting all points of discharge? Yes Did the MS4 inspector miss any obvious violations? If so, explain: No Does the MS4 inspector's process include presenting the inspection findings to the site contact in writing? Yes Does the MS4 inspector's process include providing construction stormwater educational materials to the site contact? Yes, when necessary. Compliance/Enforcement What, if any, enforcement actions (verbal warnings, NOV, etc.) did the inspection result in? N/A If compliance issues were identified, what timeline for correction/follow-up was provided? N/A Audit Date(s): October 30, 2019 Page 27 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Site Visit Evaluation: Construction Site No. 2 Site/Project Name: River Falls Subdivision Phase II Date and Time of Site Visit: 10/30/2019 Site/Project Address: Off Main Street Lowell Operator: Dependable Development Project Type (Commercial, Industrial, Residential, CIP, Roadway, etc.): Residential NCG Permit ID Number: NCG01 Disturbed Acreage: 15.3 Recent Enforcement Actions (Include Date): NOV April, 2019 $2500 Name of MS4 Inspector(s) evaluated: John Boerger, Gaston County Sediment Inspector Name(s) and Title(s) of Site Representative(s) Present During the Site Visit. Name Title None Observations Site Documentation/Training Does the site have a Stormwater Pollution Prevention Plan (SWPPP) or similar document? Is it site -specific? Yes Does the site have approved erosion and sedimentation control plans onsite? Are they representative of current site conditions? Yes. What type of stormwater training do site employees receive? How often? Not determined. Inspector Training/Knowledge What type of stormwater training does the MS4 inspector receive? How often? RSP Annual meeting Did the MS4 inspector appear knowledgeable about MS4 and NCGO10000 requirements for construction sites? Yes Did the MS4 inspector appear knowledgeable about erosion and sedimentation control/stormwater pollution prevention BMPs? Yes. Inspection Procedures Does the MS4 inspector's process include the use of a checklist? Obtain copy. Yes Does the MS4 inspector's process include taking photos? Yes, when needed Does the MS4 inspector's process include reviewing approved plans (erosion and sedimentation control and/or SWPPP)? Yes Does the MS4 inspector's process include walking the entire site and inspecting all points of discharge? Yes Did the MS4 inspector miss any obvious violations? If so, explain: No Does the MS4 inspector's process include presenting the inspection findings to the site contact in writing? Yes Does the MS4 inspector's process include providing construction stormwater educational materials to the site contact? Yes, when necessary. Compliance/Enforcement What, if any, enforcement actions (verbal warnings, NOV, etc.) did the inspection result in? None Audit Date(s): October 30, 2019 Page 28 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Site Visit Evaluation: Post -Construction Stormwater Control Measure No.1 Site Name: Eco Park Date and Time of Site Visit: 10/30/2019 Site Address: 109 Kenworthy Avenue SCM Type: Sand filter Most Recent MS4 Inspection (Include Date and Entity): 9/25/2019 Name of MS4 Inspector(s) evaluated: Jody Alm, Gaston County Stormwater Administrator Most Recent MS4 Enforcement Activity (Include Date): N/A Name(s) and Title(s) of Site Representative(s) Present During the Site Visit: Name Title N/A Observations Site Documentation Does the site have an operation and maintenance plan? Yes Does the site have records of annual inspections? Are they performed by a qualified individual? Yes Inspector Training/Knowledge What type of stormwater training does the MS4 inspector receive? How often? RSP Annual Did the MS4 inspector appear knowledgeable about MS4 requirements for post -construction site runoff controls? Yes Did the MS4 inspector appear knowledgeable about post -construction BMPs (general purpose/function, components, 0&M requirements, etc.)? Yes Inspection Procedures Does the MS4 inspector's process include the use of a checklist or other standardized form? What format? Yes Does the MS4 inspector's process include taking photos? Yes Does the MS4 inspector's process include reviewing the site's operation and maintenance plan and records of annual inspections? Yes Does the MS4 inspector's process include walking the entire site and inspecting all points of discharge? Yes Did the MS4 inspector miss any obvious operation and maintenance deficiencies? If so, explain: No Does the MS4 inspector's process include presenting the inspection findings to the site contact in writing? Yes Compliance/Enforcement What, if any, enforcement actions (verbal warnings, NOV, etc.) did the inspection result in? None If compliance issues were identified, what timeline for correction/follow-up was provided? N/A Audit Date(s): October 30, 2019 Page 29 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Site Visit Evaluation: Post -Construction Stormwater Control Measure No. 2 Site Name: Enterprise Car Rental Date and Time of Site Visit: 10/30/2019 Site Address: 4820 Wilkinson Boulevard SCM Type: Sand filter Most Recent MS4 Inspection (Include Date and Entity): 10/1/2019 Name of MS4 Inspector(s) evaluated: Jody Alm, Gaston County Stormwater Administrator Most Recent M54 Enforcement Activity (Include Date): None Name(s) and Title(s) of Site Representative(s) Present During the Site Visit: Name Title None Observations Site Documentation Does the site have an operation and maintenance plan? Yes Does the site have records of annual inspections? Are they performed by a qualified individual? Yes Inspector Training/Knowledge What type of stormwater training does the MS4 inspector receive? How often? RSP Annual Did the MS4 inspector appear knowledgeable about MS4 requirements for post -construction site runoff controls? Yes Did the MS4 inspector appear knowledgeable about post -construction BMPs (general purpose/function, components, O&M requirements, etc.)? Yes Inspection Procedures Does the MS4 inspector's process include the use of a checklist or other standardized form? What format? Yes Does the MS4 inspector's process include taking photos? Yes Does the MS4 inspector's process include reviewing the site's operation and maintenance plan and records of annual inspections? Yes Does the MS4 inspector's process include walking the entire site and inspecting all points of discharge? Yes Did the MS4 inspector miss any obvious operation and maintenance deficiencies? If so, explain: No Does the MS4 inspector's process include presenting the inspection findings to the site contact in writing? Yes Compliance/Enforcement What, if any, enforcement actions (verbal warnings, NOV, etc.) did the inspection result in? None If compliance issues were identified, what timeline for correction/follow-up was provided? N/A Audit Date(s): October 30, 2019 Page 30 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 APPENDIX A: SUPPORTING DOCUMENTS Audit Date(s): October 30, 2019 Page 31 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 APPENDIX B: PHOTOGRAPH LOG Public Works facility Spill containment point at the Public Works facility with sheen on the stormwater and booms installed to mitigate the petroleum products. No spills were observed on the parking lot. Audit Date(s): October 30, 2019 Page 32 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Spill containment for liquids with a potential to travel outside. Used motor oil stored elevated to detect leaks and stored in the back of the facility to minimize any leak from getting outside. Audit Date(s): October 30, 2019 Page 33 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 An overview of the facility. The sand filter at Eco Park. Audit Date(s): October 30, 2019 Page 34 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 The discharge from the Eco Park sand filter. MS4 Outfall 001 at Gist Street. Audit Date(s): October 30, 2019 Page 35 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 A close up view of the discharge from MS4 Outfall An overview of the Enterprise Car Rental. Audit Date(s): October 30, 2019 Page 36 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 A view of the sand filter at the Enterprise Car Rental. A view of the discharge from the Enterprise Car Rental sand filter. Audit Date(s): October 30, 2019 Page 37 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 A view of the Hillbilly's BBQ construction site. The skimmer basin for the Hillbilly's BBQ construction site. Audit Date(s): October 30, 2019 Page 38 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 Another view of the Hillbilly's BBQ construction site. The rain gauge at Hillbilly's BBQ construction site. Audit Date(s): October 30, 2019 Page 39 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 The concrete washout at Hillbilly's BBQ construction site. A view of the MS4 outfall 002 with a "No Dumping" sticker. Audit Date(s): October 30, 2019 Page 40 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 A view of the discharge from MS4 outfall 002. A view of the South Fork Catawba River. Audit Date(s): October 30, 2019 Page 41 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 The basin at River Falls subdivision. River Falls subdivision Audit Date(s): October 30, 2019 Page 42 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 A view of one inlet into the basin at River Falls subdivision. The other inlet on the River Falls subdivision basin. Audit Date(s): October 30, 2019 Page 43 of 44 MS4 Permit Audit Report Lowell, NC: NPDES Permit No. NCS000444 A view of the discharge from the basin at the River Falls subdivision. Audit Date(s): October 30, 2019 Page 44 of 44