2018 NPDES MS4 Annual Report Submittal
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Annual NPDES MS4 ReportThis page is intentionally left blank. Prepared for: Maryland Department of the Environment Water Management Administration 1800 Washington Boulevard Baltimore, Maryland 21230 Prince George’s County, Department of the Environment 1801 McCormick Drive, Suite 500, Largo, MD 20774 Phone: (301) 883 - 5943 Fax: (301) 883 - 9 2 1 8 6 / 3 0 / 2 0 1 8 This page is intentionally left blank. National Pollutant Discharge Elimination System Municipal Separate Storm Sewer Systems 2018 Annual Report This page is intentionally left blank. Prepared for Maryland Department of the Environment Water Management Administration 1800 Washington Boulevard Baltimore, Maryland 21230 Prepared by Prince George’s County Government Department of the Environment Stormwater Management Division 1801 McCormick Drive, Suite 500 Largo, Maryland 20774 This page is intentionally left blank. Annual NPDES MS4 Report 2018 EXECUTIVE SUMMARY This report summarizes the activities carried out by various departments and agencies within Prince George’s County in accordance with the National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) permit during fiscal year (FY) 2018, the period of July 2017 through June 2018. This year’s report is a continuation of the major revisions initiated in previous reports. On July 6, 2018, the Maryland Department of the Environment (MDE) provided comments on the County’s 2017 NPDES MS4 annual report. In that transmittal, MDE requested that the responses be provided with the 2018 NPDES MS4 annual report submittal. Accordingly, the County has prepared a list of responses which can be found in Table 1 in the “Responses to MDE Comments” section of this report. Where appropriate, the response in the comment table directs the reader to additional details found in the FY 2018 report. In FY 2018, the County vigorously continued its efforts to reduce pollutants entering its waterways as targeted by the MS4 permit. These efforts cut across a wide swath of agencies and programs. In FY 2018, the County’s notable accomplishments toward meeting the MS4 goals included: Restoration Accomplishments This page is intentionally left blank. To date, 2,215 acres of impervious area have been restored and another 2,860 acres were in active planning, design, or construction in FY 2018, for a total of 5,075 acres. The County saw a 90 percent increase in water quality improvement projects in either the planning phase, under construction, or completed (from 492 in FY 2017 to 949 in FY 2018). Through its Rain Check Rebate Program, 266 BMPs were installed in FY 2018 on private properties, treating 2.3 acres. This program provides great incentives for property owners to minimize stormwater runoff and prevent stormwater pollution in the County waterways, while at the same time providing a great educational tool for the neighborhood residents. Under its Stormwater Stewardship Grant Program, the County funded a total of 15 projects at a total cost of $1,388,080 in FY 2018. These projects include on-the-ground efforts such as tree planting, trash removal, rain gardens, and bio-retention practices, as well as outreach campaigns to engage citizens in schools, faith-based organizations, and their neighborhoods. While the total impervious acres restoration is not quantifiable at this time, over 7.5 impervious acres are expected to be restored though these projects. Illicit Discharge Detection and Elimination Inspections (MS4 Regulated Land) . County inspectors evaluated 150 outfalls in winter 2018 to ascertain the presence of illicit discharges. Of these outfalls, 79 received chemical testing with 6 sites recording parameters above pollutant thresholds. Property owners took action to resolve these discharge problems such that all issues were resolved satisfactorily by the end of the reporting period. i Prince George’s County, Department of the Environment | 1801 McCormick Drive, Suite 500, Largo, MD 20774 Annual NPDES MS4 Report 2018 . Regular inspection of 58 commercial and industrial sources identified 33 water quality concerns which the County staff then investigated and worked with property owners to satisfactorily resolve. Litter Control . Trash reduction in the Anacostia watershed included more than 2,100 bags and an estimated 130 tons of trash collected. The overall Anacostia trash reduction program was estimated to reduce the annual trash load by more than 87 tons. The County continued to conduct a number of countywide trash reduction, litter reduction, and recycling programs. Specifically, the County undertook several measures, including continuing its Adopt-A-Stream program, using the PGCLitterTRAK mobile app tracking tool, involving communities and municipalities in the Clean Sweep Initiative in the Anacostia watershed, collaborating with the University of Maryland on a litter source reduction study specifically for Prince George’s County, and continuing the County’s first trash trap project. The County’s litter control efforts through comprehensive community cleanup, litter control, and Clean Up, Green Up programs removed more than 2,000 tons of trash and debris. Outreach and Education . The County hosted moreThis pagethan 500 is intentionallyenvironmental lefteducation blank. and outreach events with the help of approximately 800 volunteers to promote environmental awareness, green initiatives, and community involvement in reducing pollutants to its waterways during which nearly 28,000 participants took part. Through the Stormwater Stewardship grants 138 outreach events were held reaching a total of 6,175 people with a total impact of 25,261 hours dedicated to citizen awareness and engagement around clean water solutions. The County’s Tree Planting Program removed 2,000 high-risk or dying trees and planted 4,800 new trees, under its Right Tree, Right Place Program. This provides a net increase of 2,800 new trees planted. Monitoring and Assessment . The County continued its chemical, physical, and biological monitoring and assessment of the Bear Branch watershed. Slight improvements in water quality were noted, this information can be found in Prince George’s County, Maryland—Long-Term Stormwater Monitoring Program —Bear Branch Annual Report 2018, included on the DVD. The County continued in FY 2017 its physical monitoring of the Black Branch watershed to determine the effectiveness of stormwater management practices for stream channel protection. ii Prince George’s County, Department of the Environment | 1801 McCormick Drive, Suite 500, Largo, MD 20774 Land Development and SWM Controls . In FY 2018, 170 concept plans for stormwater control were approved. Land Development Inspection Enforcement . The County staff performed 10,241 stormwater construction inspections and 14,934 sediment control inspections. These achievements are further described in this report, with supporting details provided in the MS4 database and the additional documents on the accompanying DVD to this report. This page is intentionally left blank. iii Prince George’s County, Department of the Environment | 1801 McCormick Drive, Suite 500, Largo, MD 20774 This page is intentionally left blank. Annual NPDES MS4 Report 2018 TABLE OF CONTENTS Executive Summary ................................................................................................................................. i Abbreviations .......................................................................................................................................xiii Acknowledgements ............................................................................................................................. xvii Introduction ............................................................................................................................................ 1 Response to MDE comments ................................................................................................................. 3 Part I: Identification .............................................................................................................................. 25 Part II: Definitions ................................................................................................................................. 27 Part III: Water Quality ........................................................................................................................... 29 Part IV: Standard Permit Conditions .................................................................................................... 31 A. Permit Administration ............................................................................................................. 31 B. Legal Authority ........................................................................................................................ 50 C. Source Identification ............................................................................................................... 51 1. Storm Drain SystemThis ............................................................................................................ page is intentionally left blank. 51 2. Industrial and Commercial Sources .................................................................................... 51 3. Urban Best Management Practices (BMPs) ........................................................................ 51 4. Impervious Surfaces ............................................................................................................ 52 5. Monitoring