(Draft 1/22/03)
X. Narrative Application Supplement:
Stormwater Management Program Report
1. STORM SEWER SYSTEM
1.1. Population: 51,598, permanent
Basis of Population statistic: State Planning Office, Demographics Unit estimate. Population estimates are made July 1 of each year.
1.2. Growth rate: 2.3% / year
1.3 Jurisdictional Area: 25.04 mi2
1.4. Describe your system, in narrative, identifying use of pipe, open channels, to give a general feel for how the system performs and the general condition of the streams and other water bodies receiving runoff.
The majority of the Town’s watershed areas are built out. The predominant land uses are suburban and urban development. The storm sewer system in Chapel Hill feeds four main receiving streams (Little, Bolin, Booker and Morgan Creeks). Stormwater is conveyed to the streams by a combination of overland flow (approximately 20%), swales/open channels (approximately 35%) and pipes/culverts (approximately 45%) Culverts or span bridges are used to route streams under streets and other infrastructure.
Stormwater conveyance infrastructure has been field located using Global Positioning equipment and mapped using the Town’s Geographic System.
Under average conditions, the Town’s stormwater management systems perform adequately in containing and conveying stormwater runoff. Localized drainage problems periodically occur in some locations under certain conditions due to inadequate or deteriorated conveyance facilities. During large storm events, culverts and streams in the lower segments of the Town’s watersheds periodically flood as a result of high volumes of runoff in conjunction with low flow velocity (gradient) in these areas of Town.
Some reaches of the Town’s perennial and intermittent streams have been degraded, incised, or otherwise affected by stormwater runoff that has increased in response to expanding impervious surface area as the Town continues to develop. Two reaches of the receiving streams are listed as non-supporting and four are listed as partially supporting on North Carolina’s 2000 §303(d) list. Most pollution in Chapel Hill streams is a result of sedimentation and non-specific pollution from urban runoff and storm sewers.
Water chemistry is tested monthly in Chapel Hill streams. Generally, parameters tested are within State standards, with periodic problems regarding Dissolved Oxygen and Fecal Coliform levels. Levels of heavy metals and nutrients are consistently within acceptable State standards.
1.4(a) Describe the maintenance activities.
The Town’s storm sewer system is generally maintained with a scheduled program. The Town Public Works Department employs a Drainage Maintenance Supervisor and a three member crew to maintain drainage facilities in public rights-of-way. In addition there is a full-time street sweeping program and other resources within the Public Works Department that perform drainage maintenance on a periodic basis. It is anticipated that the current maintenance program will be supplemented using revenues from a Town Stormwater Utility scheduled for implementation in 2004. Town and State owned bridges are inspected biennially and repairs and maintenance are completed as identified by the inspections.
1.4(b) How many full time equivalent positions are used to provide maintenance services, annually?
Seven full time equivalent positions.
1.4(c) How often is the system inspected for maintenance problems?
Bridges and road crossings are inspected biennially and after significant storm events. Other drainage system components are inspected on a routine basis. On-going maintenance operations are limited by resources and are deferred due to response to complaints and/or observed problems.
1.4(d) Do you clean catch basins, pipes, and other man-made structures? Yes
1.4(e) What is the frequency of cleaning and the method used?
Scheduled drainage maintenance and street sweeping is performed routinely however, other required activities may defer these operations periodically. A combination of hand-tools and small power equipment, pressure-flushing, and/or jet-vacuuming, street sweepers and excavating equipment is used as appropriate.
1.4(f) What is the annual budget for maintenance activities? $700,000/year, not including emergency work. (Estimated by Town of Chapel Hill Public Works Department.)
1.5. Estimated percentage of jurisdictional area containing the following four land use activities:
Residential: 53.1 %
Commercial: 3.7 %
Industrial: 0.3 %
Open Space: 18.2 %
1.6. Describe the methodology used to calculate land use percentages:
Land use percentage calculations were taken from the 2002 Chapel Hill Data Book. Residential is the sum of low density residential (41.9%), medium density residential (4.5%), and high density residential (6.7%). Commercial is the sum of commercial (2.0%) and office (1.7%). Industrial is industrial. Open Space is the sum of parks/open space (9.7%) and undeveloped land (8.5%).
1.7. Does your MS4 discharge into a TMDL-controlled water body or stream? No
2. RECEIVING STREAMS
1. Receiving Stream Name: Little Creek
Stream Segment: #16-41-1-15-(05), Source to downstream of Durham County
SR 1110
Water Quality Classification: WS-IV, NSW
Use Support Rating: Non-Supporting
Water Quality Issues: Habitat degradation from urban runoff/storm sewers
2. Receiving Stream Name: Bolin Creek
Stream Segment: #16-41-1-15-1-(4), from US Hwy 501 business to Little Creek
Water Quality Classification: WS-IV, NSW
Use Support Rating: Partially Supporting
Water Quality Issues: Historical listing for sediment based on biological impairment from urban runoff/storm sewers
3. Receiving Stream Name: Booker Creek (Eastwood Lake)
Stream Segment: #16-41-1-15-2-(1), Source to the dam at Eastwood Lake
Water Quality Classification: BNSW
Use Support Rating: Partially supporting
Water Quality Issues: Cause unknown; pollution from urban runoff/storm sewers
4. Receiving Stream Name: Booker Creek
Stream Segment: #16-41-1-15-2-(5), Dam at Eastwood Lake to US Hwy 15-501
Water Quality Classification: C NSW
Use Support Rating: Partially Supporting
Water Quality Issues: Cause unknown; pollution from urban runoff/storm sewers
5. Receiving Stream Name: Booker Creek
Stream Segment: #16-41-1-15-2-(5), US Hwy 15-501 to Little Creek
Water Quality Classification: WS-IV NSW
Use Support Rating: Partially Supporting
Water Quality Issues: Cause unknown; pollution from urban runoff/storm sewers
6. Receiving Stream Name: Morgan Creek
Stream Segment: #16-41-2-(5.5)b
Water Quality Classification: WS-IV NSW
Use Support Rating: Partially Supporting
Water Quality Issues: Historical listing for sediment based on biological impairment from urban runoff/storm sewers
7. Receiving Stream Name: Meeting of the Waters
Stream Segment: #16-41-2-7, Source to Morgan Creek
Water Quality Classification: WS-IV NSW
Use Support Rating: Non-Supporting
Water Quality Issues: Historical listing for sediment based on biological impairment from urban runoff/storm sewers.
8. Receiving Stream Name: Morgan Creek
Stream Segment: #16-41-2-(9.5), Upstream of Meeting of the Waters Creek
Water Quality Classification: WS-IV NSW CA
Use Support Rating: Partially Supporting
Water Quality Issues: Historical listing for sediment based on biological impairment from urban runoff/storm sewers.
9. Receiving Stream Name: Cedar Fork Creek
Stream Segment: Source to Booker Creek
Water Quality Classification: None
Use Support Rating: Fully Supporting
Water Quality Issues: Urbanization
10. Receiving Stream Name: Wilson Creek
Stream Segment: Town limits to Morgan Creek
Water Quality Classification: None
Use Support Rating: Fully Supporting
Water Quality Issues: Urbanization
11. Receiving Stream Name: Fan Branch Creek
Stream Segment: Source to Morgan Creek
Water Quality Classification: None
Use Support Rating: Fully Supporting
Water Quality Issues: Urbanization
12. Receiving Stream Name: Crow Branch Creek
Stream Segment: Source to Booker Creek
Water Quality Classification: None
Use Support Rating: Fully Supporting
Water Quality Issues: Urbanization
13. Receiving Stream Name: Battle Branch Creek
Stream Segment: Source to Bolin Creek
Water Quality Classification: None
Use Support Rating: Fully Supporting
Water Quality Issues: Fully developed watershed, urbanization
3. EXISTING WATER QUALITY PROGRAMS
3.1 Local Programs
Local: Water Supply Watershed Protection Program
The Town of Chapel Hill Land Use Management Ordinance §3.6.4 establishes the Watershed Protection District, with the intention of long term water quality protection of the watershed that drains into Jordan Lake Reservoir, a drinking water source. The area of the Watershed Protection District extends five miles from the normal pool elevation of Jordan Lake Reservoir or the ridgeline of the watershed, whichever is less.
Local: Water Quality Testing Program
The Town of Chapel Hill's Local Water Quality Testing Program was established in 1993 to monitor baseflow surface water quality in Chapel Hill, locate pollution problems, and track water quality changes over time. Sampling is done on a monthly basis, using grab samples and a testing probe. Samples are taken at eleven locations (as shown on the attached map, attachment #3):
1- Morgan Creek at Ashe Avenue
2- Meeting of the Waters at Laurel Hills Drive
3- Bolin Creek at Village Drive
4- Bolin at Estes Drive
5- Little Creek at Pinehurst Drive
6- Morgan Creek at Hwy 54
7- Booker Creek at Piney Mountain Road
8- Morgan Creek at Smith Level Road
9- Booker Creek at Hwy 86
10- Booker Creek at Willow Drive
11- Morgan at the Ford
Parameters are tested on a monthly, quarterly, and biannual basis. Monthly parameters include: Total Suspended Solids, Fecal Coliform, Turbidity, Temperature, pH, Dissolved Oxygen, Dissolved Oxygen %, Specific Conductivity, and Total Dissolved Solids. Quarterly parameters include: Total Kehjal Nitrogen, NO3 plus NO2, Total Nitrogen, Ammonia, Phosphorus. Biannual parameters include: Copper, Zinc, and Lead.
Any irregularities in samples are noted. Urgent water quality concerns (such as fecal coliform spikes) are reported immediately to the appropriate agency. Other irregularities and trends are discussed in quarterly and annual water quality reports.
3.2 State/County Programs
County: Delegated Erosion and Sedimentation Control Program
Chapel Hill’s delegated erosion and sedimentation control program is described in the Town’s Soil Erosion and Sedimentation Control Ordinance 92-2-22/0-1, §1 and in the Chapel Hill Town Code §5-73 through §5-106. Orange County has been designated as the enforcing agency. Chapel Hill Town Code §5-97 states that, "No person shall undertake any land-disturbing activity which would require the uncovering of 2000ft2 of land without first obtaining the required approvals and permits from the erosion control officer." Chapel Hill Town Code §5-66 states that, "Requirements, standards, and specification for erosion control plans and erosion control techniques, measures, and devices are contained in the Orange County Soil Erosion and Sediment Control Manual." The Town of Chapel Hill requires more stringent erosion and sedimentation control design standards than the State of North Carolina. The Sediment and Erosion Control Ordinance is attached, see Attachment #2.
4. PERMITTING INFORMATION
4.1 Responsible Party Contact List
The following contacts are responsible for each minimum measure as listed in this permit application:
Public Education and Outreach, Public Participation and Involvement, Illicit Discharge Detection and Elimination, and Post-Construction Runoff Control are the responsibility of:
Engineering Director
Engineering Department
Town of Chapel Hill
306 N. Columbia Street
Chapel Hill, NC 27516
Phone - 919/968-2833
Fax – 919/932-2954
Pollution Prevention and Good Housekeeping is the responsibility of:
Public Works Director
Public Works Department
Town of Chapel Hill
1099 Airport Road
Chapel Hill, NC 27516
Phone – 919/968-2796
Fax – 919/969-2003
And
Transportation Director
Transportation Department
Town of Chapel Hill
1089 Airport Road
Chapel Hill, NC 27516
Phone – 919-968-2755
Fax – 919/968-2840
The Town of Chapel Hill will rely on Orange County for the for the Construction Site Runoff Control minimum as noted in Section V. The Town Stormwater Engineer will be the local contact on this minimum measure.
4.2 Organizational Chart
A departmental organizational chart that shows where the responsible parties listed above fit into the structure of the Town organization is attached. (See #4).
4.3 Signing Official
The signing official statement is included in Section VII of this document.
4.4 Responsible Parties
Responsible parties are listed in section X.4.1 of this document.
5. CO-PERMITTING INFORMATION
5.1 Co-Permittees:
None
5.2 Legal Agreements
Not Applicable
5.3 Responsible Parties
Not Applicable
6. RELIANCE ON ANOTHER GOVERNMENT ENTITY
6.1. Name of entity:
County of Orange
6.2. Measure Implemented:
Construction Site Stormwater Runoff Controls
6.3 Contact Information
Contact Person: Reynolds Ivins, Erosion Control Supervisor
Contact Address: Planning and Inspections Department
306F Revere Road, PO Box 8181
Hillsborough, NC 27278
Contact Telephone Number: 919/245-2586
6.4 Legal Agreements
Yes, legal agreements are in place to establish responsibilities.
7. STORMWATER MANAGEMENT PROGRAM PLAN
7.1 Public Education and Outreach on Storm Water Impacts
7.1.1. BMP Summary Table: Public Education
(a) BMP: Prepare an education plan
Measurable Goals: Prepare education plan in the first two years of the permit.
Include in Plan the BMPs, schedule, targeted audiences, and measurable goals. Summarize plan and implementation progress in each annual report.
Years Committed: Years 3, 4, 5
Responsible Party: Engineering Director
Target Audiences: Elementary School Children, Households, Business and industry, Gas station owners, “Do-it-yourself" community, Elderly
The reason for these selection(s) of your Target Audience: These target audiences have been selected because they make up the majority of our residents. Education of these target audiences may achieve significant improvements in surface water quality.
_______________________________________________________________
(b) BMP: School programs
Measurable Goals: Develop education program for school children in Year three and implement. Focus on basic messages regarding clean water and the things they can do at home to help. Track the number of children reached and the subject covered and report annually.
Years Committed: Years 3, 4, 5
Responsible Party: Engineering Director
Target Audience: Elementary School Children
The reason for these selection(s) of your Target Audience: The school education program will help instill responsible habits in our young community. This program can be coordinated through the Science Coordinator at each elementary school.
_______________________________________________________________
(c) BMP: Mailers, brochures, inserts.
Measurable Goals: Develop mailer for insert in Stormwater Utility bills and implement in Year two. Target homeowners and businesses with messages about how they can reduce pollution picked up by stormwater. Track number of homes and businesses reached by mailer and report annually. This component will be dependent upon the inception date of the Town's Stormwater Utility, expected to be in Year two.
Years Committed: Year 2
Responsible Party: Engineering Director
Target Audience: Households, Business and industry
The reason for these selection(s) of your Target Audience: This audience will be affected by the stormwater utility, and thus can be readily contacted via mailers, inserts, and brochures. We believe that this audience will be the most receptive to mailers, brochures, and inserts.
_____________________________________________________________
(d) BMP: Coordination with other in-house communication tools
Measurable Goals: Provide education material for Chapel Hill employees in The Communicator (intra-agency news letter) starting in Year One using existing distribution methods. Focus on importance of carrying out duties without adding unnecessary sediment or other pollutants to the stormwater system. Track number of employees reached and number of education materials distributed and report annually.
Years Committed: Years 1, 2, 3
Responsible Party: Engineering Director
Target Audience: Town employees
The reason for these selection(s) of your Target Audience: This is a diverse audience including both Chapel Hill residents and residents living outside of Town, all of whom can be reached and educated via the Town newsletter
_______________________________________________________________
(e) BMP: Internet Hotline and education webpage
Measurable Goals: Establish an email or internet hotline and educational webpage in Year Two with the Stormwater Utility for communication with the public and publicize the Stormwater Utility. Track type of citizen issues. Report annually on data gathered and issues addressed.
Years Committed: Year 2
Responsible Party: Engineering Director
Target Audience: Households, Business and Industry
The reason for these selection(s) of your Target Audience: This audience will be affected by the stormwater utility, and can receive information from and provide input to the utility managers via the internet.
_______________________________________________________________
(f) BMP: Participate and promote NC Big Sweep
Measurable Goals: Continue to assist the community in NC Big Sweep and track activities within community beginning in Year One. Focus on cleaning up the streams and other receiving waters. Report annually on activities within our community such as number of participants and amount of waste collected.
Years Committed: Years 1, 2, 3, 4, 5
Responsible Party: Engineering Director
Target Audiences: School programs, Stream-watch groups, households, business and industry
The reason for these selection(s) of your Target Audience: This audience has a history of participation in NC Big Sweep.
7.1.2. Target Audience. Explain the target audiences for your education program.
Target audiences are listed in section 7.1.1, above.
7.1.3. Target Pollutant Sources
Target pollutant sources are: trash, floatables, sediment, household chemicals and used petroleum and automotive wastes.
7.1.4 Write a narrative description of the approach you are going to take in your outreach program.
The Education Program will consist of school programs; mailers, brochures, and posters; coordination with in-house communication tools; a stormwater webpage and internet hotline, participation in NC Big Sweep stream clean-up; and through structural BMPs such as cast curb inlets and manhole covers. It will be accomplished through coordination with local groups including: Morgan Creek Alliance, Bolin Creek Alliance, and other grassroots level organizations; the Upper New Hope Arm of Jordan Lake Local Watershed Planning Initiative; the multi-jurisdictional stormwater work group; and the Stormwater Utility Policy Review Committee. All groups are working on a combination of environmental and water quality projects, including education measures. We will also work to coordinate our efforts with the NC Wetlands Restoration Program and the University of North Carolina at Chapel Hill.
Leaflets and brochures will be mailed to residents and businesses as a part of the stormwater utility. These will also include pollution prevention information, educate the public about why certain pollutants are harmful, and help them identify ways to reduce pollution in their homes and businesses. This media will be in the form of individual brochures and stormwater utility bills/information inserts. The Town of Chapel Hill website and the Stormwater Utility website will be used to spread educational information about non-point source pollution and water quality issues.
Coordination with other in-house communication tools will be carried out by writing a periodic stormwater pollution prevention column in the employee newsletter, the Communicator. This column will detail ways that town employees can reduce pollution in their work and in their daily lives, and provide factual information. The column will also be used to better educate town employees on pollution control and environmental concerns so that they can better represent Town policies and procedures to the community.
An internet hotline will be instated in Year Two as a part of the stormwater utility. Citizens will be provided an email address to which they can report illicit discharges, drainage problems, surface water pollution, and other stormwater concerns.
The Town will help coordinate NC Big Sweep. The Town will also assist in locating reaches of Chapel Hill streams to be cleaned. Stenciling that reads, "Don't Dump, Drains to Creek" in blue letters has been completed on most Town storm drains; un-stenciled drains will be stenciled. In areas of new development, steel storm drain hoods cast with the "don't dump" message and a fish graphic will be installed. An illustration of the cast hoods is attached (Attachment #5).
7.1.5 Decision Process:
The education program will be created by utilizing and enhancing pre-existing programs and creating new ones in necessary areas. Creation of the Town Stormwater Utility will help the development of the education program, as education will be a component of the Utility itself, but will also be necessary for community understanding of the Utility fees that will be imposed.
Mailers and brochures will be necessary as the stormwater utility is created. Combining them with pollution prevention education provides and efficient and cost effective means of public education. Quarterly columns in the Communicator are a simple means of communicating with Town employees. This education measure is also particularly effective because Town employees may be asked questions about stormwater, drainage, and pollution by residents.
An internet hotline is planned to be a part of the stormwater utility; it will be utilized to address stormwater pollution, flooding, infrastructure, and other concerns. NC Big Sweep, storm drain stenciling, and cast hoods are continuing programs. New BMPs will include structural elements that are to be developed into a new Design Manual for the development community.
7.1.6. Evaluation
Evaluation of this program will be done by assessing achievements and progress toward reaching each of the measurable goals listed in section 5.1.1. This will be reported each year in the annual report.
5.2 PUBLIC INVOLVEMENT PROGRAM
7.2.1. Are you going to comply with the public hearing requirement to meet this minimum control measure? Yes
7.2.2. Target Audience for the Public Involvement Program: General Public
7.2.3. Describe the public notice process followed in your community, providing the name and title of the person responsible for compliance with Legal Notices:
The Town Clerk creates and submits and advertises legal notices through local level media (newspapers) for any public hearings held by Town Council. Contact information:
Joyce Smith, Town Clerk
Town of Chapel Hill
306 N Columbia Street
Chapel Hill, NC 27516
919/968-2743 x340
.
Notice dates: Sunday, January 12, 2003.
Hearing date: January 22nd, 2003
(Attachment #6 is a copy of the Notice of Public Hearing that was published in local newspapers)
7.2.4. Decision process for the development of a stormwater public involvement/ participation program.
This program was developed by following the Town of Chapel Hill standard procedures for holding a public hearing.
7.2.5. Evaluation. Explain how you will evaluate the success of this minimum measure.
This success of this minimum measure will be evaluated by the public interest shown in the permit application, the number of people who attend the public hearing, and the number of comments received.
7.3. ILLICIT DISCHARGE DETECTION AND ELIMINATION
7.3.1. BMP Summary Table: Illicit Discharge Detection and Elimination
(a) BMP: Develop ordinance/amend existing ordinance to define and include illicit detection, right of entry, prohibition of certain discharges, enforcement actions and penalties for dumping, spills, and willful illicit connections in year three.
Measurable Goals: Amend and/or adopt ordinance by end of year three. Note date of adoption and include a copy of ordinance in annual report record.
Years Committed: Year 3
Responsible Party: Engineering Director
_______________________________________________________
(b) BMP: Develop system map showing outfalls and the receiving body of water. Complete one quarter of the community each year, updating any system changes within already mapped areas as they occur.
Measurable Goals: Creation of a storm sewer system map began in 2000. Expected completion date of the system map is in 2005. The map currently notes inlets and outfalls. The completed map will show how stormwater moves through the system and will note the receiving body of water for each outfall. The map will be routinely updated as new development occurs. The Town will report annually on progress.
Years Committed: Year 3, 4, 5
Responsible Party: Engineering Director
_________________________________________________________
(c) BMP: Develop fact sheets for public education program on illicit connections and spill management. Place in public library and provide to appropriate Town departments for distribution to the public.
Measurable Goals: Prepare fact sheets and distribute copies to the public for distribution. Complete by end of Year Three and provide samples in annual report. Note date completed and number of copies placed for distribution.
Years Committed: Year 3, 4, 5
Responsible Party: Engineering Director
________________________________________________________
(d) BMP: Educate employees on how to inspect for illicit connections and establish a tracking system for managing reported problem areas.
Measurable Goals: Provide materials to all employees regarding illicit connections and how to recognize them. Materials will be developed by end of Year Three. This will be summarized in the annual report.
Years Committed: Years 3, 4, 5
Responsible Party: Engineering Director
________________________________________________________
(e) BMP: Utilize local internet/email hotline set up under Public Involvement Program for public reporting of illicit connections.
Measurable Goals: Maintain website and internet hotline for reporting of illicit connections/dumpings. Set up in Year Four and report general activities annually.
Years Committed: Year 4, 5
Responsible Party: Engineering Director
________________________________________________________
(f) BMP: On-going coordination with local wastewater authority (Orange Water and Sewer Authority) on identification of potential cross connections between sanitary sewer and storm sewers.
Measurable Goals: As sites are identified, the Town will coordinate with OWASA or the property owner for investigation and elimination.
Years Committed: Year 3
Responsible Party: Engineering Director
_________________________________________________________
(g) BMP: Develop means and methods for follow-up and enforcement actions regarding identified pollution sources.
Measurable Goals: Establish standing operating procedures for enforcement in Year Three and report on enforcement actions in each annual report thereafter. Present SOP in third annual report.
Years Committed: Year 3
Responsible Party: Engineering Director
_______________________________________________________
7.3.2. Storm sewer system map: Describe how you are going to complete a storm sewer system map of outfall locations. (What sources of information will you use? What form will the map take (digital, paper map)? What method will you use to verify the accuracy of the locations? Will you do field verification and if so, will you use any specific technology? How will you update the map, once data collection begins? Who will keep the map current? Where will the map be located within the organization for the public to view or review if desired?
Creation of a Chapel Hill storm sewer system map began in the summer of 2000. During 2000, 2001, and 2002, a Trimble Pathfinder TSC1 GPS (accuracy greater than 1 meter) was used to field locate storm sewer inlets and outfalls which were subsequently mapped on the Town’s Geographic Information System. Approximately 85% of the mapping is completed. At each inlet and outfall location, information about the structure was recorded, including condition, maintenance needs, style, and a digital photo. The transfer of the digital photos and inlet and outfall locations onto a GIS map have been completed for most locations. A database identifying inlets and outfalls that require maintenance has been completed.
Once all inlets and outfalls are mapped, storm sewer routing will be created to show how stormwater runoff moves through the system. This will be done using a combination of topographic data, information from developers, and field verification. The drainage routing phase of the storm sewer system mapping project is expected to be completed by year five. The Town GIS Specialist will be responsible for updates to the map, which will occur with each new development. The map will be available for viewing in the Engineering Department and on the Town’s website.
7.3.3. Do you have an ordinance in place that prohibits non-stormwater from your drainage system? No
Describe your process for developing a regulatory mechanism and when you plan on doing so.
The Town will develop a regulatory mechanism that defines and prohibits illicit discharges entering into stormwater systems, including right of entry provisions, penalties, and due process procedures. The regulatory mechanism will be developed in Year 3 for adoption in Year 4.
7.3.4 Describe the methodology you will use to take enforcement actions needed when you find an illicit connection. Include process you will follow if different from the method of adopting or amending your current ordinance.
Enforcement actions will follow standard Town of Chapel Hill due process procedures for Town Code violations. This will include letters of violation, reinspections, and penalties. Details of enforcement actions for illicit discharges will be established as part of the regulatory mechanism in Year 3.
7.3.5. Describe the plan you are going to follow to find and eliminate illicit connections. Address spills and illegal dumping controls as well. Include procedures for locating high priority areas in the community; procedures for tracing the source of an illicit connection; procedures for removing the discharge and procedures for program evaluation and assessment.
How will you find illicit connections?
Illicit connections will be found through the Stormwater Hotline, the Water Quality Testing Program, and/or visual field inspections. Locating these connections will be aided by the use of the Storm Sewer System map, to be completed by Year 5.
How will you address spills within your own operation and within the community?
Spills will be addressed by notifying the responsible party and/or the appropriate agency. Some spills and illicit discharges will be managed and mitigated by the hazardous materials unit of the Fire Department or by the Orange Water and Sewer Authority, depending on the type of spill or discharge.
How will you eliminate an illicit connection or discharge?
Identified illicit connections and/or pollution discharges will be removed by the responsible party or appropriate authority, as a violation of the Town Ordinance. Engineering Department staff will perform follow-up surveys as necessary to ensure that illicit connections, spills, discharges, and dumped pollutants are eliminated/mitigated.
How will you evaluate your program and make changes over time?
Comprehensive program evaluation will be conducted annually as the annual report is completed. Successes and achievements will be quantified through the annual change in number of illicit connections, discharges, and other pollution incidents identified and mitigated. Procedural changes may occur depending upon experience and knowledge gained.
7.3.6 Illicit or Allowable
1. Water line flushing: Allowable
2. Landscape irrigation: Allowable
3. Diverted stream flows: Allowable
4. Rising ground waters: Allowable5.
5. Uncontaminated ground water infiltration (as defined at 40 CFR §35.2005(20)): Allowable
6. Uncontaminated pumped ground water: Allowable
7. Discharges from potable water sources: Allowable
8. Foundation drains: Allowable (unless found to exceed State standards)
9. Air conditioning condensation: Allowable (unless found to exceed State standards)
10. Irrigation water: Allowable
11. Springs: Allowable
12. Water from crawl space pumps: Allowable (unless found to exceed State standards)
13. Footing drains: Allowable
14. Lawn watering: Allowable
15. Individual residential car washing: Allowable
16. Flows from riparian habitats and wetlands: Allowable
17. Dechlorinated swimming pool discharges: Allowable
18. Street wash water: Allowable
Are there other incidental discharges that you will define as NON-STORMWATER and ILLICIT for purposes within your community? Yes
If yes, describe them and how you will address them in your community:
Oil and other hazardous materials including petroleum products and chemicals, as defined by the State of North Carolina Division of Water Quality, are illicit We will address these through public education via printed information and stencils on storm drain inlets and manhole covers throughout the Town. (See Attachment #5).
7.3.7. How will you inform the public and your employees about the hazards of illicit connections and illegal dumping? This activity should be coordinated with your Public Education Program and your Good Housing Keeping Program.
The public and Town employees will be informed about the hazards of illicit connections and illegal dumping through the Public Education and Good Housekeeping components of this permit. Public outreach about these issues will also be an important component of the Stormwater Utility. This will be achieved through utility bill inserts, mailers, and brochures; periodic columns in the Communicator employee newsletter; and through the Town website. Through the Good Housekeeping Component, employees will be educated on hazardous pollutants and understanding methods to keep them out of stormwater flows. The Good Housekeeping Component will also train Town employees in identifying and eliminating illicit connections and discharges.
7.3.8 Describe how you developed your program approach to illicit discharge elimination. How did you choose your BMPs and your measurable goals?
This program was developed by capitalizing on existing programs and expanding illicit discharge detection and elimination capacities where needed. The strategy of capitalizing of existing programs allows us to craft the most extensive illicit discharge detection and elimination program possible. The new programs will include development/amendment of ordinances to address illicit connections, right of entry, prohibition of certain discharges, and enforcement actions and penalties. The Town will develop a drainage system map showing inlets, outfalls, and receiving waters to aid in tracking pollution locations and system impacts.
BMPs (e), (f), and (g) are already planned as a part of the stormwater utility. The educational BMPs will be accomplished in conjunction with the Public Education and Outreach and the Good Housekeeping Components of this permit through the Education Plan. Measurable goals were chosen by defining our goals and a timeline for reaching them.
7.3.9 Explain how you will evaluate the success of your program. What are the measurable goals for each BMP?
The program will be evaluated through the annual report and analysis of measurable goals. These measurable goals are detailed under each BMP in section 7.3.1, above.
7.4. CONSTRUCTION SITE STORMWATER RUNOFF CONTROLS
7.4.1 Are you going to use the State Sediment and Erosion Control program to comply with this minimum control measure? Yes.
We are using the Chapel Hill Soil and Erosion Control Ordinance, Town Code, Article 5, §5-73 through §5-106 (See Attachment 2). This is based upon, but is more stringent than, State standards. The program is administered for the Town by Orange County.
If yes, who is responsible for the program in your community?
Reynolds Ivins, Orange County Erosion Control Supervisor
Provide contact information on the local program if it is delegated. If another local jurisdiction provides this program for your community, attach the interagency agreement that delineates responsibilities.
Reynolds Ivins
Erosion Control Supervisor
County of Orange, NC
Planning and Inspections Department
306F Revere Road
PO Box 8181
Hillsborough, NC 27278
919/245-2586
7.4.2 Describe the methodology that you will use to control sediment and erosion practices within your community and explain why you choose that particular method for control. Provide a copy in an Appendix to this application. If this mechanism is not yet developed, describe how you will develop it and what your schedule is. Include in your mechanism requirements for BMPs for on site controls for sediment and erosion by construction site operators and on site controls for other types of waste generated on each impact construction area.
The methodology used in the Town of Chapel Hill to control sediment and erosion practices is contained in the Chapel Hill Erosion and Sedimentation Control Ordinance, Town Code, Article 5, §5-73 through §5-106. This Ordinance provides that Erosion Control Plans must be submitted to and approved by the County for any activity that disturbs more than 20,000 feet2 of land. The plan must be approved and a grading permit must be obtained prior to the start of the disturbance. In order to be accepted, the Erosion Control Plan must:
1- Identify critical areas
2- Plan for erosion control
3- Limit exposed areas
4- Limit time of exposure
5- Control surface water
6- Control sedimentation
7- Manage storm water runoff
A performance bond must also be posted with the Town.
7.4.3 Do you have plan review procedures in place for sediment and erosion controls? If you do, describe them. Estimate the number of site plans you will be reviewing. If you do not have your procedures in place for plan review, describe how you are going to get a plan in place and your schedule for doing so.
There are plan review procedures in place for sediment and erosion control plans. They are described in the Chapel Hill Town Code, § 5-98. The following is taken from that section of the Town Code:
Plan reviews are conducted by the Orange or Durham County Soil and Water Conservation Districts. Reviews are required within twenty (20) days of receipt of any plan and notification of a response is required within thirty (30) days unless additional time is allowed by the Chapel Hill Town Council.
Examples of conditions of approval include: channel stabilization must be successful or another type of lining must be used; delineating certain areas to be stabilized and graded within a specified number of days to reduce the potential for erosion and protect critical areas; providing a performance security to provide permanent ground cover; and requiring the person financially responsible to retain the services of a professional engineer or architect to supervise implementation of the approved erosion control plan.
Failure to approve or disapprove a complete erosion and sedimentation control plans within thirty (30) days of receipt of the complete plan shall be deemed approval. Denial of a plan must specifically state in writing the reasons of denial. The county must approve or deny a revised plan within fifteen (15) days of receipt, or it is deemed to be approved.
The plan must contain such architectural and engineering drawings, maps, assumptions, calculations, and narrative statements as are needed to adequately describe the proposed development of the tract and the measures planned to comply with the requirements of this division. Application for amendments of an erosion control plan in written or graphic form may be made at any time under the same conditions as the original application.
Erosion control plans may be disapproved unless accompanied by an authorized “Statement of Ownership and Financial Responsibility.” Any plan submitted for a land disturbing activity for which either an environmental assessment or an environmental impact statement is required by the North Carolina Environmental Policy Act (GS §113A-1) shall be deemed incomplete until a complete environmental document is available for review.
7.4.4 Describe your plan for enforcement actions. Include what enforcement actions you use and how often you use them. If you do not have your plan in place, describe how you will develop it and when and what enforcement actions you are considering in your plan.
The plan for enforcement actions is described in the Chapel Hill Town Code, §5-102 (f) through §5-104.1. The following has been taken from the Town Code; (Full text can be found in Attachment #2.)
Whenever any person is violating the Erosion and Sedimentation Control Ordinance, the Town Manager or his designee may issue a stop work order for the site on which the violation has occurred. Upon issuance of such an order and the posting of same on the site of the violation, all work on the site of the violation shall cease, except those activities necessary to bring the site into compliance with this ordinance. The person conducting the land-disturbing activity may appeal a notice of violation or stop work order to the town board of adjustment within a period of thirty (30) days after the order is issued.
Penalties are described in the Town Code §5-103. A civil penalty of five thousand dollars ($5000.00) may be imposed on any person who violates any of the provisions of this division or rules or orders adopted or issued pursuant to this ordinance. Each day of a continuing violation will constitute a separate violation. Any person who fails to submit an erosion control plan for approval pursuant to this ordinance shall be subject to a single, non-continuing civil penalty of one thousand dollars ($1000.00). Violators of this ordinance are also subject to criminal penalties. Violators shall be guilty of a misdemeanor punishable by imprisonment not to exceed ninety (90) days or by a fine not to exceed five thousand dollars ($5000.00), or by both, at the discretion of the court. The governing body of the town or county may also file for injunctive relief if they have reasonable cause to believe that any person is violating or threatening to violate this ordinance.
Town Code §5-104.1 states that if the parties engaged in a land-disturbing activity comprising more than one acre fail to retain sediment generated by the activity, they shall restore the waters and/or land affected by the failure so as to minimize the detrimental effects of the resulting sediment pollution. The institution of an action to restore areas affected by failure to comply shall not relieve any party to such action from any civil or criminal penalty prescribed for violation of this ordinance.
7.4.5 Describe your procedures for site inspections and how you prioritize sites. If your plan has not been developed, cover inspections procedures in your plan and the process you will use to prioritize the inspections.
Procedures for site inspections are detailed in the Chapel Hill Town Code, §5-102. The following is taken from that section.
Agents, officials, or other qualified persons authorized by the Town will periodically inspect the sites of land-disturbing activity to determine:
1- Compliance with the Sedimentation and Erosion Control Ordinance,
2- Whether the activity is being conducted in accordance with an approved plan,
3- Whether the measures required in the plan are effective in controlling erosion and sediment resulting from land-disturbing activity,
4- Whether restoration measures are necessary due to the failure to control erosion or sedimentation.
Notice of the right to inspection shall be included in the notification of all plan approvals.
7.4.6 How do you manage the receipt of information from the public on sediment and erosion issues within your community? Is this part of your public education program? If so, how will you target the appropriate community sector?
Information received from the public on sediment and erosion control issues within the community is routed to the appropriate person or agency. Pre- and during-construction concerns are the responsibility of Orange County. The Town Engineering and Building Inspections departments follow up on citizen comments about erosion and sedimentation control problems and notify Orange County when necessary.
7.4.7 Describe the process you used (will use) in making decisions about the program for construction site runoff management.
Within the Town corporate limits, construction site stormwater runoff management is administered by Orange County on behalf of the Town.
7.4.8 Explain how you will evaluate the success of this minimum measure, including the measurable goals for each BMP.
The success of this minimum measure will be evaluated by the number of permit applications received, the number of site inspections completed, the number of sites found in compliance or in violation, and the number of successful mitigations completed.
7.5 POST CONSTRUCTION SITE MANAGEMENT FOR NEW AND REDEVELOPMENT ACTIVITIES
7.5 Post Construction Site Management for New and Re-development activities BMP Summary Table
(a) BMP: Update existing ordinance to include new strategies to address both structural and non-structural water quality controls. Include enforcement strategies as appropriate as well as requirements for long-term maintenance as needed. Consider the following BMPs in development of the controls.
a. Policies and ordinances that provide requirements and standards to direct growth to identified areas
b. Policies that protect sensitive areas such as wetlands and riparian areas
c. Policies or standards that maintain and/or increase open space (including a dedicated funding source for open space acquisition)
d. Policies or standards that provide buffers along sensitive water bodies
e. Policies or standards that minimize impervious surfaces,
f. Policies or standards that minimize disturbance of soils and vegetation
g. Policies or ordinances that encourage infill development in higher density urban areas, and areas with existing storm sewer infrastructure;
h. Education programs for developers and the public about project designs that minimize water quality impacts (coordinate with Public Education minimum control measure)
i. Source control measures often thought of as good housekeeping, preventive maintenance and spill prevention for new development as part of the regulatory controls;
j. Storage practices such as wet ponds and extended detention outlet structures;
k. Filtration practices such as grassed swales, bioretention cells, sand filters and filter strips
l. Infiltration practices such as infiltration basins and infiltration trenches.
m. Design and control standards to address on site treatment for total suspended solids removal of 85%
n. Standards for density of development limitations to reduce impervious coverage.
Measurable Goals: The Town has already developed some select standards and practices for post-construction controls for water quality, and will develop additional practices by Year One. An example practice is included in Attachment #7.
Years Committed: On-going
Responsible Party: Engineering Director
________________________________________________________
(b) BMP: Implement long-term maintenance program for on-site controls at time of ordinance update.
Measurable Goals: The Town has already adopted an ordinance (Land Use Management Ordinance) that requires the long-term maintenance of structural controls for new and redevelopment projects. In annual report, identify date of adoption, controls and procedures to be followed. The Town will report annually on program status.
Years Committed: On-going
Responsible Party: Engineering Director
_________________________________________________________
(c) BMP: Evaluate plan review process to ensure that appropriate reviews and inspections during construction occur for water quality controls established in development ordinance.
Measurable Goals: This process is ongoing with the recent revisions of the Land Use Management Ordinance. More details will be developed with the upcoming revision of the Design Manual.
Years Committed: On-going
Responsible Party: Engineering Director
7.5.2 Do you currently have development standards that address stormwater management on new or redevelopment projects that disturb more than one acre of property?
Yes. The Town’s development standards are more stringent than State standards. We require stormwater management and runoff control on projects that disturb 5000 ft2 of land area. Performance standards listed in the Land Use Management Ordinance §5.4.6 are the following:
“(a) Stormwater treatment shall be designed to achieve average annual 85% Total Suspended Solids (TSS) removal and must apply to the volume of post-development runoff resulting from the first 1-inch of precipitation. Alternative methods to achieve 85% average annual TSS removal may be acceptable.
(b) The stormwater runoff volume leaving the site post-development shall not exceed the stormwater runoff volume leaving the site pre-development (existing conditions) for the local 2-year frequency, 24-hour duration storm event for all development except single family and two family dwellings on lots existing as of January 27, 2003, or on lots pursuant to a Preliminary Plat that was approved by the Town Council prior to January 27, 2003. This may be achieved by hydrologic abstraction, recycling and/or reuse, or any other accepted scientific method.
(c) The stormwater runoff rate leaving the site post-development shall not exceed the stormwater runoff rate leaving the site pre-development (existing conditions) for the local 1-year, 2-year, and 25-year 24-hour storm events.
(d) Land disturbance within the stream channel of any ephemeral stream shall be minimized, and prohibited unless explicitly authorized by issuance of a Zoning Compliance Permit after demonstration of the necessity of the disturbance.”
7.5.3 Are your standards in an ordinance or other regulatory format that requires plan reviews, long-term maintenance and use of BMPs for water quality controls?
Yes. Our standards are detailed in the 2003 Land Use Management Ordinance, §5.4. (See Ordinance, Attachment #7)
7.5.4 Describe current program and how it meets the requirements of the Permit. How does it address non-structural controls?
The current program is a comprehensive stormwater management program designed to regulate water quality, volume, and discharge rate for new development. The current program is described in the Land Use Management Ordinance, § 5.4 (See Ordinance, Attachment #7)
Land Use Management Ordinance §5.4.1 states that, “The purpose of this section is to establish minimum stormwater management requirements and controls to protect and safeguard the general health, safety, and welfare of the public residing in watersheds within this jurisdiction.”
Objectives cited in the ordinance include:
§5.4.1(a): “minimize increases in stormwater runoff from any development in order to reduce flooding, siltation, and stream bank erosion and maintain the integrity of stream channels.”
§5.4.1(b): “minimize increases in non-point source pollution caused by stormwater runoff from development which would otherwise degrade local water quality.”
§5.4.1(c): “minimize the total volume of surface water runoff which flows away from any specific site during and following development in order to replicate the pre-development hydrology to the maximum extent practicable.”
§5.4.1(e): “meet the requirements of the National Pollutant Discharge Elimination System (NPDES Phase 2) regulations as established by the Clean Water Act and administered by the North Carolina Department of Natural Resources, or its successor agency.
7.5.5 How does it address structural controls?
The current program addresses structural control by requiring structural BMPs to meet performance standards. These are discussed in the goals of this section of the Land Use Management Ordinance, §5.4.1(d). This section states that one objective is to, “reduce stormwater runoff rates and volumes, soil erosion and nonpoint source pollution, wherever possible, through stormwater management controls and to ensure that these management controls are properly maintained and pose no threat to public safety.”
Structural controls are further addressed in §5.4.3, which cites the approved Design Manual and Standard Details, and §5.4.7, which encourages the use of Integrated Management Practices wherever possible. (Full text of these sections can be found in Attachment #7)
7.5.6 Describe your maintenance program, including enforcement mechanism.
Maintenance of stormwater management facilities is described in the Land Use Management Ordinance §5.4.8. This section states that, “Stormwater management facilities that are constructed on privately owned land and that are not within a public easement shall be maintained by the owner of the subject property. Stormwater Management Facilities that are constructed on public land, within the public rights-of-way, and/or within public easements shall be maintained by the public body with ownership/jurisdiction.
Land Use Management Ordinance §5.4.8 requires that all stormwater management facilities constructed on private property shall have a maintenance easement, maintenance covenant, records of installation and maintenance activities, and punishments for failure to maintain maintenance facilities. Land Use Management Ordinance § 5.4.9 provides for inspection and right-of-entry for inspection of stormwater facilities on privately-owned property.
7.5.7 Describe your plan review process.
All land development permit applications require submittal of detailed background information, as listed in Attachment #8, Description of Required Information. All applicants for developments or subdivisions which create four or more lots and all Special Use Permit Applications, and all developments resulting in 5000ft2 of land-clearing activity must file a Stormwater Impact Statement. The Stormwater Impact Statement shall include the following:
-Site Analysis and Narrative
-Impact Statement Analysis (including: scope of impacted area, stormwater modeling, nutrient loading, stormwater BMP (integrated management practices) criteria, erosion and sediment management, mitigation measures, maintenance and operations plan, and reserved storm drainage way easement.)
(The Stormwater Impact Statement guidelines are detailed in Attachment #9)
7.5.8 Of all your current practices and strategies, list the ones that will be used as on-going BMPs under this permit.
Practices and strategies that will be used as on-going BMPs under this permit are listed in Attachment #7. Development of additional practices and strategies will take place by Year One in the revised Design Manual.
7.5.9 Do you have requirements for structural BMPs to control stormwater on site for new or redevelopment activities to control water quality? Yes.
7.5.10 Describe the regulatory mechanism, those controls and how they were selected to control water quality?
For structural BMPs, under purpose of the Land Use Management Ordinance §5.4.1 states that the purpose of these rules is to manage stormwater rate, volume and quality will be managed through structural and un-structural engineering controls.
The Town of Chapel Hill Design Manual will be completed in Year One, and will indicate all best management practices accepted by the town for these controls. Low impact design methodology is encouraged by the Land Use Management Ordinance §5.4.7. BMPs listed in the Design Manual will be selected by applicability and feasibility and effectiveness in our area; some will be taken from DWQ stormwater manual.
7.5.11 Do you have a regulatory mechanism to address post-construction controls for water quality? Yes.
7.5.12 Describe the regulatory mechanism and why you choose that process.
Post-construction stormwater controls are required in Land Use Management Ordinance §5.4. The procedure for failure to maintain stormwater control practices is described in Land Use Management Ordinance §5.4.8(e), which states, “If a responsible party fails or refuses to meet the requirements of the maintenance covenant, the Town, after reasonable notice, may correct a violation of the design standards or maintenance needs by performing all necessary work to place the facility in proper working condition. In the event that the stormwater management facility becomes a danger to public safety or public health, or it is otherwise not functioning as designed, the Town shall notify the party responsible for maintenance of the stormwater management facility in writing. Upon receipt of that notice, the responsible person shall have 30 days to effect maintenance and repair of the facility in an approved manner. After proper notice, the Town may assess the owner(s) of the facility for the cost of repair work and any penalties; and the cost of the work shall be a lien on the property, or prorated against the beneficial users of the property, and may be placed on the tax bill and collected as ordinary taxes.”
7.5.13 If yes you have standards to control water quality, is long-term maintenance required and how is it regulated? If no, describe how you will incorporate maintenance requirements. If no long-term maintenance strategy is included in your program, describe the process you will use to establish a long-term maintenance strategy and the schedule you will follow.
Long-term maintenance is required and is regulated as described above in 5.5.6 of this permit. There is a maintenance easement and a maintenance covenant attached to the deed. Land Use Management Ordinance §5.4.8(d) provides that parties responsible for inspection, operation, and maintenance are required to keep records of all work and repairs for a period of five years.
7.5.14 Describe the process you followed in determining your plan of action for this minimum control measure.
The requirements of this minimum control measure were met through the most recent revision of the Land Use Management Ordinance. More specific details will be described in the upcoming revision of the Design Manual.
7.5.15 What are your priority areas?
Priority areas are: 85% TSS removal from the first inch of precipitation, volume controls, integrated management practices, and use of structural and non-structural controls.
7.5.16 What conditions exist in your community that are unique or require tailored BMPs?
Steep slopes, riparian corridors, special natural areas, and the Water Supply Watershed District are unique and may require tailored BMPs.
7.5.17 Describe your measurable goals and evaluation process.
Our measurable goals are to ensure that all new development is in compliance with section 5.4 of the Land Use Management Ordinance. Success will be measured by the number of violations of these rules found, maintenance records, and overall longevity of post-construction stormwater controls. The Town will not know specific successes and failures for several years, as new developments become established.
________________________________________________________
7.6 POLLUTION PREVENTION/GOOD HOUSEKEEPING FOR MUNICIPAL OPERATIONS
7.6.1 BMP Summary Table: Pollution Prevention/Good Housekeeping for Municipal Operations
(a) BMP: Complete an inventory of facilities that will be evaluated through an environmental audit to determine potential pollution contributions as required by the Municipal Industrial Activities Permit.
Measurable Goals: As a part of the Industrial Activities permit application, we will assess municipal facilities owned by the Town for potential pollutant contributors. A stormwater pollution prevention plan will be established for each facility that has been identified as a potential pollution contributor. Each plan will include BMPs that target the identified pollutant. All other requirements under the Municipal Industrial Activities Permit will be met for each identified Town facility.
Years Committed: Years 1, 2, 3, 4, 5
Responsible Position/Party: Public Works Director and Transportation Director (or as dictated by the MIAP)
_____________________________________________________
(b) BMP: Develop training materials on pollution prevention for public facilities, using existing materials gathered from other organizations or creating new tools as needed. Educate all employees annually on the need for controls to protect stormwater from exposure to potential pollutants.
Measurable Goals: This will be done as a part of the industrial activities permit and under the Education Plan.
Years Committed: Years 1, 2, 3, 4, 5
Responsible Position/Party: Public Works Director and Transportation Director (or as determined by the Municipal Industrial Activities Permit)
_________________________________________________________
(c) BMP: Provide training for those employees that maintain the drainage system with the focus on disposal of floatables, grit, sediment, and other pollutants removed from the system.
Measurable Goals: All employees and contractors are trained to dispose of waste properly. All new employees will be trained. Procedures will be reviewed with the start of regular maintenance with the stormwater utility program. Beginning in Year Two, provide training to all employees who maintain the drainage system with a focus on floatable, grit, sediment, disposal of pollutants, and practices to ensure a stable site condition. Report annually on types of training and subjects covered.
Years Committed: Years 1, 2, 3, 4, 5
Responsible Position/Party: Engineering Director
_________________________________________________________
(e) BMP: Inspect all materials storage facilities to determine priority for reducing exposure to stormwater.
Measurable Goals: These will be determined with the completion of the Municipal Industrial Activities Permit.
Years Committed: Years 1, 2, 3, 4, 5
Responsible Position/Party: Public Works Director (or as determined by Municipal Industrial Activities Permit)
7.6.2. List the municipal operations that will be impacted by this measure.
Various Town of Chapel Hill departments will be impacted by this measure, including the Public Works Department and the Transportation Department. The Town of Chapel Hill operates or maintains the following municipal operations that will be impacted by this measure:
-Maintenance yard
-Parks maintenance
-Vehicle and equipment maintenance
-Drainage system maintenance
-Materials storage yard
-Equipment storage
-Parking garage maintenance
-Street sweeping
-Ground maintenance and chemical application
7.6.3 Describe any government employee training program you will use to prevent and reduce storm water pollution from activities such as park and open space maintenance, fleet and building maintenance, new construction and land disturbances, and storm water system maintenance.
Employee training programs will be developed with the Municipal Industrial Activities Permit. Some training programs are also listed in the BMPs above, see 5.6.1(b) and 5.6.1(c).
7.6.4 Drainage system maintenance: describe your procedures for controlling floatable and other pollutants from the drainage system. If you do not have a plan, how will you address this in your permit?
We have an existing drainage maintenance program that is designed to remove floatables and sediment from the storm sewer system. The stormwater utility will further develop this drainage and maintenance program.
7.6.5 Describe controls for reducing pollutants from parking lots, storage yards, waste transfer stations, outdoor storage areas at vehicle maintenance shops, salt storage and snow disposal areas. If you do not have a plan, how will you address this in your permit? This will be addressed in the Municipal Industrial Activities Permit.
7.6.6 Describe your procedures for the proper disposal of waste removed from your drainage system? If you do not have a plan, how will you address this in your permit?
Collected waste is deposited at the Orange County Landfill.
7.6.7 What are your procedures to incorporate water quality controls within flood management projects? If you do not currently consider this in your program of flood management, how will you address this in your permit?
For all Town projects, BMPs will be utilized according to site conditions. This may include structural or non-structural practices designed to reduce pollutant loading into the streams.
7.6.8 Describe how you developed your pollution prevention plan for this permit. What important factors did you consider?
The pollution prevention plan was developed by utilizing existing programs and expanding their scope where necessary. As the pollution prevention plan will be a part of the Municipal Industrial Activities Permit, the details of the pollution prevention plan will be further developed with the writing of that permit.
7.6.9 What are your measurable goals and how will you evaluate them?
Measurable goals are listed in the BMP table, section 5.6.1. These will be evaluated in an annual report.
1. Watershed Protection District Ordinance
2. Sediment and Erosion Control Ordinance
3. Map of Water Quality Testing Sites
5. Cast hood and manhole graphic
7. Land Use Management Ordinance §5.4