FY 17-18 Hendersonville Stormwater Management Plan

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Stormwater management Plan

City of Hendersonville Engineering Department
305 Williams Street Hendersonville, NC 28792

NPDES PERMIT No.: NCS000489

Reporting Year: July 1, 2017 – June 30, 2018
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Table of Contents

Stormwater Management Plan Overview .................................................... 3
Status Of Implementation ........................................................................... 3
Water Quality .............................................................................................. 3
Current FY 18-19 Adopted Budget .............................................................. 5
Organizational Chart ................................................................................... 6
Capital Improvement Projects ..................................................................... 7
Yearly Maintenance Activities ..................................................................... 8
Minimum Control Measures ........................................................................ 9
Public Education and Outreach .............................................................................................. 9
Public Involvement and Participation .....................................................................................15
Illicit Discharge Detection and Elimination (IDDE) .................................................................17
Construction Site Runoff Controls ..........................................................................................24
Post-Construction Site Runoff Control ...................................................................................25
Pollution Prevention And Good Housekeeping ......................................................................33
Total Maximum Daily Loads (TMDL’s) ...................................................... 40

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Stormwater Management Plan Overview

The City of Hendersonville is a federally designated National Pollutant Discharge
Elimination System (NPDES) Phase II community and operates under the authority of the
Stormwater Management Program which operates as a division of the Engineering
Department. The North Carolina Division of Water Quality renewed NPDES Phase II
Permit NCS000489 to the City of Hendersonville November 30, 2016 – November 10,
2022. The Stormwater Management Plan is the City of Hendersonville’s program to
comply with NDPES Permit NCS000489 authorization to discharge Stormwater from the
Municipal Separate Storm Sewer System (MS4s) located within the City of Hendersonville
Jurisdictional Area.
The plan is a guidance document used by City staff and the general public.
Status Of Implementation

The City of Hendersonville is pleased to report progress for year 12 compliance with
requirements of NPDES Phase II permit in the following six minimum control measures
in the plan:
• Public Education and Outreach
• Public Participation and Involvement
• Illicit Discharge Detection and Elimination
• Construction Site Runoff Control
• Post-Construction Site Runoff Control
• Pollution Prevention and Good Housekeeping for Municipal Operations
On April 7, 2011 the City of Hendersonville Council approved Stormwater Ordinance No.
11-0419 Article III
Water Quality

The City of Hendersonville is delegated by the state to enforce the Stormwater and Illicit
Discharge regulations within our jurisdictional area. The city has adopted and enforces a
stormwater ordinance. (Chapter 24 Article III of the Code of Ordinances)
The city reviews and approves all development plans associated with grading,
stormwater, and erosion control. For projects that cumulatively disturb more than one
acre a formal plan is required. All formal plans are required to be prepared by a qualified
registered NC professional engineer or landscape architect.
For projects that disturb less than an acre and are not part of a larger development are
exempt from the stormwater ordinance. For all other projects, stormwater controls must

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be designed by a licensed professional and installed. The city requires 85% removal of
Total Suspended Solids and also requires that the post construction discharge not exceed
pre-development discharge for the 2-year and 10-year storm event with the ability to pass
the 25-year event.
Budget
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Current FY 18-19 Adopted Budget

*Note: There is 1 Full-Time Equivalent (FTE) employee in the Stormwater Fund;
however, a portion of wages for other City employees is accounted for via the
Stormwater Fund
REVENUES FY 18-19
Utility Charges $326,500.00
Other Financing Sources $10,774.00
Total $337,274.00
Expenditures FY 18-19
Personnel $154,040.00
Operating $153,234.00
Capital $30,000.00
Total $337,274.00
Organization Chart for Engineering Department (17/18 FY)
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Organizational Chart

City Engineer
Stormwater
Administrator
GIS
Administrator
Civil Engineer
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Develpment
Review
Engineer
Engieering
Technician 3
Construction
Manager
Construction
Inspector
Capital Improvement Projects
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Capital Improvement Projects

Wash Creek Master Plan $100,000.00
Hendersonville Elementary Headwall Replacement $30,000.00
Operation and Maintenance
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Yearly Maintenance Activities

Maintenance activities include pipe repair, storm drain cleaning, grate replacement,
catch basin repair, culvert repair, shoulder repair and ditching.

Cleaned drain work order 6
Pipe repair work order N/A
Ditching work order N/A
Catch basin repair N/A
Missing grate repair N/A
Streambank repair 300 lf

Total Work Orders
Sweeping Miles 80
Catch Basins/Storm Drains Cleaned N/A
New or replaced storm drains installed 9
New pipe installed in LF

Yearly Operation Activities Total Number

Inspections
Stormwater 96
Notice of Violations 0

Plan Reviews Total Number
Received
Reviewed
Approved
Disapproved
Total Disturbed Acres Permitted

Public Education and Outreach
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Minimum Control Measures

Public Education and Outreach

1. Objectives for Public Education and Outreach
Distribute educational materials to the community or conduct equivalent outreach
activities about the impacts of stormwater discharges on water bodies and the
steps the public can take to reduce pollutants in stormwater runoff.

2. BMPs for Public Education and Outreach
The permittee shall implement the following BMPs to meet the objectives of the
Public Education and Outreach Program and shall notify the Division prior to
modification of any goals.
BMP Measurable Goals
a. Goals and Objectives Defined goals and objectives of the Local
Public Education and Outreach Program
based on community wide issues

17-18 Accomplishment
The City of Hendersonville performs a public education and outreach program currently
through community meetings and events. Currently the program includes providing basic
messages regarding clean water and the steps people can take at home to reduce
polluted stormwater runoff.
Flyers were mailed to all water/sewer customers with information related to water quality
and conservation and highlighting the City’s 2nd annual rain barrel program.
Drain stenciling events were held with 3 community groups: Mountain True
(Environmental Non-Profit), Boys and Girls Club of Hendersonville (Community Non-
Profit), and the Girl Scouts of America. A total of 68 people participated in stenciling
events. Over 150 drains were stenciled through this program.
The Stormwater Administrator participates in the Hendersonville Environmental
Sustainability Board. Educational events were held at local community centers and
schools. Educational material is also provided on the City’s website.
18-19 Objectives
The City will continue to search for public education and outreach opportunities.

Public Education and Outreach
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BMP Measurable Goals
b. Describe target pollutants and/or
stressors
The permittee shall maintain a description
of the target pollutants and/or likely
stressors and likely sources.

17-18 Accomplishment
The City of Hendersonville participates in chemical and biological stream monitoring with
Mountain True for the testing of five stream sites within the city. Mountain True has been
developing an on-going quality database of Western North Carolina watersheds. The
purpose of this research is to continue and expand the long-term monitoring of stream
sites within Henderson County. The cost was being shared by the Henderson County
Board of Commissioners and MountainTrue. The major focus of the monitoring is to
identify problem areas as well as areas with high water quality that need to be maintained
and to monitor areas where water quality improvement projects will be taking place. (The
Mountain True contract with EQI offers technical assistance through laboratory analysis
of samples and statistical data analysis of monitoring results.)
The overall goal of the proposed research is to assess the present water quality of
representative streams and rivers within the City of Hendersonville. Specific objectives
include:
• Analyze water samples from five sites in Hendersonville for eight chemical
parameters monthly, with this contract it brings the total number of monitoring sites
in Henderson County to 37.
• Analyze data statistically for trends between sites (spatial) and trends within sites
over time (temporal);and
• Use the results of the analyses to assess the ability of the streams to support their
various current, intended, and potential uses.
EQI laboratory analyzes all samples for the following parameters: pH, ammonia-nitrogen,
nitrate-nitrogen, orthophosphate, total suspended solids, alkalinity, turbidity, and
conductivity.
18-19 Objectives
The City will continue to assist Mountain True in their VWIN and SMIE monitoring
programs.
BMP Measurable Goals
c. Describe target audiences The permittee shall identify, assess
annually and update the description of the
target audiences likely to have significant
Public Education and Outreach
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stormwater impacts and why they were
selected.

17-18 Accomplishment
The City of Hendersonville target audiences are youth groups, residential property owners
/homeowner’s associations, contractors, auto shops and restaurants/food stores. Youth
groups were chosen in order to educate them early as they can help educate their
parents. Property owners and homeowner’s associations were selected because of the
large impact they can have on the stormwater in the community. Contractors were
selected because of the impact they can have on sediment pollution. Auto shops were
chosen because of the issue of untreated car wash runoff in the community. Restaurants
and food stores were chosen in order to reduce contaminated stormwater runoff from
dumpsters and trash compactors.

18-19 Objectives
Continue our educational outreach to youth groups, community members, non-profits,
contractors, auto shops and restaurants/grocers.
BMP Measurable Goals
d. Describe residential and
industrial/commercial issues
The permittee shall describe issues, such
as pollutants, the likely sources of those
pollutants, potential impacts, and the
physical attributes of stormwater runoff, in
their education/outreach program.

17-18 Accomplishment
The city’s education/outreach program for residential property owners, contractors, auto
shops, restaurants and food stores has focused on the following pollutants:
• Sediment
• Streambank stability
• Pets waste
• Car wash runoff
• Use of lawn and garden products
• Leaking dumpsters/trash compactors
These pollutants were selected because they can harm fish and wildlife population, foul
drinking water supplies, kill native vegetation, and make recreational areas unsafe.
Public Education and Outreach
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18-19 Objectives
Continue to educate youth groups and property owners on the dangers of these
pollutants.
BMP Measurable Goals
e. Informational Website The permittee shall promote and maintain
an internet website designed to convey
the program’s message.

17-18 Accomplishments
The Engineering Department continues to maintain an educational stormwater website:
http://www.hendersonvillenc.gov/stormwater-management. The website provides
information about the program and also the importance of clean water to the citizens of
Hendersonville. It provides links to regional and national stormwater resources and
contact information for the City’s stormwater hotline number.
18-19 Objectives
Continue to maintain and update our current website with stormwater projects and
activities. Addition of maps that detail the city’s stormwater outfalls and infrastructure.
BMP Measurable Goals
f. Distribute public education
materials to identified target
audiences and user groups.
The permittee shall distribute stormwater
educational material to appropriate target
groups. Instead of developing its own
material the permittee may rely on Public
Education and Outreach materials
supplied by state, and/or other entities
through a cooperative agreement, as
available, when implementing its own
program.

17-18 Accomplishment
The City distributed stormwater education flyers via mail. The flyer included:
• Benefits of rain barrels and rain gardens
• Water conservation techniques
Public Education and Outreach
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18-19 Objectives
Continue distributing stormwater educational material to target audiences.
BMP Measurable Goals
g. Maintain Hotline/Help line The permittee shall promote and maintain
a stormwater hotline/helpline for the
purpose of public education and outreach

17-18 Accomplishments
The City provides a stormwater hotline [phone] for citizens to report illicit discharge,
accidental discharge, spills, erosion/sediment problems, and other stormwater related
issues. This number is promoted on the city website and flyers/brochures mailed to
citizens.
18-19 Objectives
Continue to maintain and promote the stormwater hotline/helpline.

BMP Measurable Goals
h. Implement a Public Education and
Outreach Program
The permittee outreach program,
including those elements implemented
locally or through a cooperative
agreement, shall include a combination of
approaches designed to reach the target
audiences. For each media, event or
activity, including those implemented
locally or through a cooperative
agreement the permittee shall estimate
and record the extent of exposure.

17-18 Accomplishments
Activity Estimated Number of Exposure
Educational Flyers 27,000
Classroom/Outdoor lessons 800
Storm Drain Marking 70
Public Education and Outreach
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Trash Trout Volunteers 40
River Clean ups 25
Radio Events 1200
Rain Barrel Program 300

18-19 Objectives
Continue to:
• Search for public education and outreach opportunities
• Maintain and update website
• Mail informational brochures in utility bills
Work with other City departments and local non-profits to provide stormwater education
and outreach.

Public Involvement and Participation
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Public Involvement and Participation

1. Objectives for Public Involvement and Participation

Comply with State and Local public notice requirements when implementing a
public involvement and participation program

2. BMP’s for Public Involvement and Participation
The permittee shall implement the following BMP’s to meet the objectives of the
Public Involvement and Participation program and shall notify the Division prior to
any modifications of any goals

BMP Measurable Goals
a. Volunteer community
involvement program
The permittee shall include and promote
volunteer opportunities designed to
promote ongoing citizen participation

17-18 Accomplishment
The City of Hendersonville partners with Mountain True to provide an Adopt-a-park
program. Groups and organizers are encouraged to help reduce litter by participating in
Hendersonville’s Adopt-a-Park program. Participants agree to pick up litter from local
parks and streams at least 4 times a year. The City provides groups with bags, vests,
gloves, and grabbers. The City of Hendersonville provides garbage pickup and signs to
recognize litter reduction efforts.
The City of Hendersonville partnered with Asheville GreenWorks to install a litter
reduction device named the “Trash Trout” in a local river. The device catches floating
trash that is then collected by volunteers. The City stormwater specialist participates in
clean ups and helps with trash pickup. The device collected over 2,000 lbs. of trash
from June 2017- June 2018. Additionally, over 40 volunteers have participated in
maintaining the device and in water quality monitoring associated with the device.
The City of Hendersonville created a drain stenciling program in which volunteers can
stencil drains with a message that aims to prevent illegal dumping into storm drains.
The City provides stencils, paints, gloves, and other necessary items for the events and
the stormwater administrator participates in all drain stenciling events.
The City of Hendersonville promotes and participates in NC Big Sweep river clean up
every year. This event encourages community members to participate in a one-day river
Public Involvement and Participation
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cleanup project. This past year the City hosted a team of 6 people who cleaned a 3-mile
section of Mud Creek and removed approximately 550 lbs. of trash. Other teams
throughout the City also participated but were organized by various community groups.
The City of Hendersonville recently began participating in a volunteer-based water
quality monitoring program sponsored by local non-profit Mountain True. The project is
monitoring 30 locations within the watershed for Fecal Coliform and E. Coli in order to
prioritize streams where illicit connections or discharges may be occurring.
The City of Hendersonville participated in a live staking event with local non-profit
Mountain True to educate residents about erosion prevention methods.
The City hosted a rain garden design and installation workshop in partnership with NC
Cooperative Extension in March 2018, 25 people attended ranging from homeowners to
landscape professionals and contractors.
The City installed a 2nd rain garden at a local elementary school. As part of the installation
3rd and 5th grade students were asked to participate in the planning and design of the rain
garden. A lessons was given at the school focused on watershed education and
stormwater runoff management. Approximately 120 students were engaged in this event.

18-19 Objectives
The City will continue to look for partnership opportunities to perform various stormwater
activities

ILLICIT DISCHARGE DETECTION AND ELIMINATION (IDDE)
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Illicit Discharge Detection and Elimination (IDDE)

1. Objectives for Illicit Discharge Detection and Elimination

a. Implement and enforce a program to detect and eliminate illicit discharges into
the MS4;
b. Maintain a storm sewer system map, showing the location of major outfalls and
the names and locations of waters of the United States that receive discharges
from those outfalls;
c. Prohibit, through ordinance, or other regulatory mechanism, non-stormwater
discharges except as allowed in this permit and implement appropriate
enforcement procedures and actions;
d. Implement a plan to detect and address non-stormwater discharges, including
illegal dumping into the MS4;
e. Inform public employees, businesses, and the general public of hazards
associated with illegal discharges and improper disposal of waste; and
f. Address the following categories of non-stormwater discharges or flows (i.e.,
illicit discharges) only if you identify them as significant contributors of
pollutants to the MS4: waterline flushing, landscape irrigation, diverted stream
flows, rising ground waters, uncontaminated ground water infiltration,
uncontaminated pumped ground water, discharges from potable water
sources, foundation drains, air conditioning condensation, irrigation water,
springs, water from crawl space pumps, footing drains, lawn watering,
individual residential car washing, flows from riparian habitat and wetlands,
dechlorinated swimming pool discharges, and street wash water (discharges
or flows from firefighting activities are excluded from the effective prohibition
against non-stormwater and need only be addressed where they are identified
as significant sources of pollutants to waters of the United States)

2. BMPs for Illicit Discharge Detection and Elimination

The permittee shall implement the following BMPs to meet the objectives of the
Illicit Discharge Detection and Elimination Program and shall notify the Division
prior to modification of any goals.
BMP Measurable Goals
a. Maintain adequate legal authorities The permittee shall annually review the
IDDE ordinances or other regulatory
mechanisms, or adopt any new
ordinances or other regulatory
mechanisms that provide the permittee
with adequate legal authority to prohibit
ILLICIT DISCHARGE DETECTION AND ELIMINATION (IDDE)
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illicit connections and discharges and
enforce the approved IDDE Program

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17-18 Accomplishment
The City of Hendersonville Council approved and adopted ordinance No. 11-0419 Article
III on April 7, 2011. This ordinance addresses stormwater and illicit discharge.
17-18 Objective
Continue to follow the ordinance and update annually as necessary.
BMP Measurable Goals
b. Maintain a Storm Sewer System
Base Map of Major Outfalls
The permittee shall maintain a current
map showing major outfalls and receiving
waters.

17-18 Accomplishment
The City maintains and updates maps of the stormwater system throughout the city in
ArcGIS, a GIS based system. The maps are updated annually to show new storm
drainage systems that have been installed. This mapping system shows locations of
streams, rivers, ponds, lakes, SCM’s, storm drains, outfalls, and drainage networks.

18-19 Objectives
Continue to maintain and update maps of the stormwater system in ArcGIS. Publish
stormwater system map online for general public to access.

BMP Measurable Goals
c. Detect dry weather flows The permittee shall develop and
implement a program for conducting dry
weather flow field observations in
accordance with a written procedure for
detecting and removing sources of illicit
discharge.

17-18 Accomplishment
The City of Hendersonville stormwater staff performs annual stream walks of all named
receiving streams in the City’s jurisdiction to survey outfalls for dry weather flows. If a flow
is detected a sample is collected and screened using the LaMotte MS4 stormwater
screening kit to determine if the discharge contains pollutants. The stormwater
administrator is familiar with the stormwater system and conducts annual inspection of
publicly maintained storm drain systems throughout the city.

If a suspected illicit discharge is discovered, or a resident of the city reports a questionable
discharge, the stormwater administrator is notified and visits the site to investigate the
report. In the event the City is unable to identify the discharge, the NC Division of Water

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Quality is contacted for testing purposes. Assuming there is evidence of an illicit
discharge, the property owner is notified in person (if possible) or by letter about what has
been found, the amount of time to take corrective action and enforcement procedures
should they choose not to comply in accordance with section 24-163 of the stormwater
ordinance which covers civil penalties.

18-19 Objectives
Stormwater administrator will continue to perform routine inspections. Additionally,
municipal staff will be trained in illicit discharge detection procedures.

BMP Measurable Goals
d. Investigation into the sources of all
identified illicit discharges.
The permittee shall maintain and evaluate
annually written procedures for
conducting investigations of identified
illicit discharges.

17-18 Accomplishment
City of Hendersonville Stormwater Administrator responds to illicit discharge concerns
which include identifying the source and working with the property owner to resolve the
issue.

Provide residents a 24/7 hotline number to report illicit discharge, off-site sedimentation
and other stormwater related issues.

18-19 Objectives
Develop a formal written standard operating procedure (SOP) for identifying illicit
discharges and connections. Develop a formal SOP for investigating, reporting and
documenting IDDE reports from the community. Continue to perform the duties listed.

BMP Measurable Goals
e. Track investigations and document
illicit discharges
The permittee shall track all investigations
and document the dates the illicit
discharge was observed; the results of
investigation; any follow-up of the
investigation; and the date the
investigation was close.

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17-18 Accomplishment
The City of Hendersonville investigates all discharge complaints. All complaints are
documented with pictures and the date the investigation was closed, as well as any follow-
up needed.

17-18 Objective
Continue to track all illicit discharge complaints.

BMP Measurable Goals
f. Employee Training The permittee shall implement and
document a training program for
appropriate municipal staff, which, as part
of their normal jobs responsibilities, may
come into contact with or otherwise
observe an illicit discharge or illicit
connection to the storm sewer system.

17-18 Accomplishment
Conducted Municipal stormwater pollution prevention training for the following
departments:

Division Number of Employees Date of Training
Public Works 19 3/23/17
Water and Sewer 28 1/26/18

18-19 Objectives
Hold training for other departments within the organization that may come in contact with
or otherwise observe and illicit discharge to the storm sewers system.

BMP Measurable Goals
g. Provide Public Education The permittee shall inform public
employees, businesses, and the general
public of the hazards associated with
illegal discharges and improper disposal
of waste.

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17-18 Accomplishment
Educational brochures were included in combined utility bills sent to businesses and the
general public. The brochure included information associated with illicit discharges and
improper disposal of waste.

18-19 Objectives
Continue mailing brochures to businesses and the public informing them of the hazards
associated with illicit discharges and improper disposal of waste.

BMP Measurable Goals
h. Public reporting mechanism The permittee shall promote, publicize,
and facilitate a reporting mechanism for
the public and staff to report illicit
discharges and establish and implement
citizen request response procedures.

17-18 Accomplishment
The City operates a telephone number in which residents or staff members can report
issues related to illicit discharges, off-site sedimentation and other stormwater issues.
This telephone number is located on the City of Hendersonville website and on
educational brochures mailed annually to the public.

18-19 Objectives
Continue to provide a telephone hotline to report issues related to illicit discharge, off-site
sedimentation and other stormwater issues. Develop an online reporting tool for Illicit
discharges.

BMP Measurable Goals
i. Enforcement The permittee shall implement a
mechanism to track the issuance of
notices of violation and enforcement
actions administered by the permittee.
This mechanism shall include the ability
to identify chronic violators for initiation of
actions to reduce noncompliance.

17-18 Accomplishment
City of Hendersonville Stormwater ordinance No. 11-0419 allows the enforcement of
notices of violations for illicit discharges.

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18-19 Objectives
Develop a database for NOV’s and enforcement actions. Continue to enforce the City’s
stormwater ordinance.
CONSTRUCTION SITE RUNOFF CONTROLS
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Construction Site Runoff Controls

The City of Hendersonville has delegated the Local Erosion and Sediment Control
program to Henderson County

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Post-Construction Site Runoff Control

Objectives for Post-Construction Site Runoff Controls
a. Implement and enforce a program to address stormwater runoff from new and
redevelopment projects, including public transportation maintained by the
permittee, that disturb greater than or equal to one acre, including projects less
than one acre that are part of a larger common plan of development or sale,
which would discharge into the small MS4. The program shall ensure that
controls are in place that would prevent or minimize water quality impacts. The
program shall apply to private development sites and sites developed by the
permittee, including public transportation maintained by the permittee.
b. Implement strategies which include a combination of structural and/or non-
structural best management practices (BMPs) appropriate for the community.
c. Enforce an ordinance to address post-construction runoff from new and
redevelopment projects.
d. Ensure adequate long-term operation and maintenance of BMPs through an
inspection and maintenance program.

1. BMPs for Post-Construction Site Runoff Controls
The permittee shall implement the following BMPs to meet the objectives of the
Post-Construction Stormwater management program. To the extent there is any
conflict between the permittee and post-construction ordinances adopted by the
N.C. Division of Water Quality, the post-construction ordinances shall apply with
regard to permit compliance.
BMP Measurable Goals
a. Adequate legal authorities Maintain through ordinance, or other
regulatory mechanism, adequate legal
authorities to meet the objectives of the
post-construction site runoff control
stormwater management program.
The permittee shall have the authority to
review designs and proposals for new
development and redevelopment to
determine whether adequate stormwater
control measures will be installed,
implemented, and maintained.
The permittee shall have the authority to
request information such as stormwater
plans, inspection reports, monitoring

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results, and other information deemed
necessary to evaluate compliance with
the post-construction stormwater
management program.
The permittee shall have the authority to
enter private property for the purpose of
inspecting at reasonable times any
facilities, equipment, practices, or
operations related to stormwater
discharges to determine whether there is
compliance with the post-construction
stormwater management program.

17-18 Accomplishment
The primary regulatory mechanism for the City of Hendersonville is the Stormwater
Ordinance. Specifically Article III Section 24 deals with stormwater and illicit discharges
and connections.
Section 24-148(a) calls for all development and redevelopment to which this subsection
applies shall comply with the standards herein. The design of facilities to comply with
these standards shall be based on procedures contained in DEQ’s Stormwater BMP
Manual or as approved by the Stormwater Administrator guided by the purpose and intent
of this section.
Section 24-147 (b) (1) calls for all treatment measures to treat either the runoff from the
disturbed area volume calculated utilizing the one-year, one-hour design storm rainfall
depth; or the difference in stormwater runoff volume between the pre- and post-
development conditions for the one-year, 24-hour storm; whichever is greater. Section
24-147 (c) calls for stormwater quality control that discharges stormwater at a rate equal
to or less than the pre-development discharge rate for both the two-year, 24-hour storm
and the ten-year, 24-hour storm with the ability to pass the 25-year, 24-hour storm.
Section 24-147 (b) (2) calls for the Runoff volume drawdown time to be a minimum of 48
hours, but not more than 120 hours. Section 24-147 (b) (3) calls for all structural
stormwater treatment systems used shall be designed to have a minimum of 85 percent
average annual removal for total suspended solids (TSS). Section 24-147 (e) calls for
approval of the stormwater permit to require an enforceable restriction on property usage
that runs with the land, such as recorded deed restrictions or protective covenants, to
ensure that future development and redevelopment maintains the site consistent
with the approved project plans. Every structural BMP installed pursuant to this ordinance
shall be made accessible for adequate maintenance and repair by a maintenance

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easement. The easement shall be recorded, and its terms shall specify who may make
use of the easement and for what purposes.
17-18 Objective
Continue to operate our program.
BMP Measurable Goals
b. Strategies which include BMPs
appropriate for the MS4
The permittee shall adopt the DWQ MDC
for Stormwater Control Measures

17-18 Accomplishment
The City of Hendersonville requires that all projects that involve a structural stormwater
BMP have an Operation and Maintenance Agreement filed with the city and recorded in
the Henderson County Register of Deeds office before a final plan approval and
Certificate of Occupancy are granted. The agreement binds the owner and any future
owners. The agreement requires the owner to maintain, repair and if necessary
reconstruct the structural BMP and shall state the terms, conditions, and schedule of
maintenance for the structural BMP. It shall also grant the city a right of entry in the event
that the Stormwater Administrator has reason to believe that it has become necessary to
inspect, monitor, maintain, repair or reconstruct the structural BMP. The agreement shall
state that if the Stormwater Administrator has deemed an order directing the correction,
repair, replacement, or maintenance of the facility has not been satisfactorily compiled
within a reasonable period of time the city may, after notice to the owner enter the land
and perform any necessary work to place the facility in proper working condition.
Section 24-154 (b) established special requirements for homeowner’s and other
associations within the City’s jurisdiction. For all structural BMPs required pursuant to the
article and that are to be or are owned and maintained by a homeowners' association,
property owners' association, or similar entity establishment of an escrow account, which
can be spent solely for sediment removal, structural, biological or vegetative replacement,
major repair, or reconstruction of the structural BMPs. If structural BMPs are not
performing adequately or as intended or are not properly maintained, the city, in its sole
discretion, may remedy the situation, and in such instances the City of Hendersonville
shall be fully reimbursed from the escrow account. Escrowed funds may be spent by the
association for sediment removal, structural, biological or vegetative replacement, major
repair, and reconstruction of the structural BMPs, provided that the city shall first consent
to the expenditure. Allowing the city to recover from the association and its member’s any
and all costs the city expends to maintain or repair the structural BMPs or to correct any
operational deficiencies. Failure to pay the city all of its expended costs, after 45 days'
written notice, shall constitute a breach of the agreement. In case of a deficiency, the city
shall thereafter be entitled to bring an action against the association and its members
to pay, or foreclose upon the lien hereby authorized by the agreement against the

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property, or both. Interest, collection costs, and attorney fees shall be added to the
recovery.
The City of Hendersonville Public Works Department operates a vacuum truck that cleans
out storm drainage pipes and structures. The city operates the truck on a cycle and cleans
drains on an as-needed basis. The city also operates a street sweeper to assist in
preventing any materials from entering into the storm drainage system. The City of
Hendersonville’s Public Works staff will also respond to complaints on storm drains and
other drainage structures as needed.
18-19 Objectives
Continue to require that all projects that involve a stormwater BMP have an Operation
and Maintenance Agreement filed with the city and recorded in the Henderson County
Register of Deeds office before plan approval and Certificate of Occupancy are granted.
BMP Measurable Goals
c. Plan reviews The permittee shall conduct site plan
reviews for all new development and
redeveloped sites that disturb equal to or
greater than one acre (including sites that
disturb less than one acre that are part of
a large common plan of development or
sale). The site plan review shall address
how the project applicant meets the
performance standards and how the
project will ensure long-term maintenance.

17-18 Accomplishment
The Stormwater ordinance provides the mechanism for the City of Hendersonville to
review plans.
18-19 Objectives
Continue to enforce the stormwater ordinance.
BMP Measurable Goals
d. Inventory of projects with post-
construction structural stormwater
control measures
The permittee shall maintain an inventory
of projects with post-construction
structural stormwater control measures
installed and implemented at new
development and redeveloped sites,
including both public and private sector

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sites located within the permittee’s
jurisdiction that are covered by its post-
construction ordinance requirements.

17-18 Accomplishment
Every SCM constructed within the City of Hendersonville is required to have an operation
and maintenance agreement written that describes the location of the structure, list the
owner, describes the structure proper, and describes the function and required
maintenance. The owner of the SCM is required to have the structure inspected by a
certified professional every year and provide the results of the inspection to the City of
Hendersonville Stormwater Administrator. The City of Hendersonville inspected all public
and private sector SCM’s that have filed Operation and Maintenance agreements and are
located within the city’s jurisdiction
18-19 Objectives
The City of Hendersonville plans to continue the inspection of all public and private sector
SCM’s that have filed Operation and Maintenance agreements and are located within the
city’s jurisdiction.
BMP Measurable Goals
e. Deed Restrictions and
Protective Covenants or
Recorded Operation and
Maintenance Agreements
The permittee provides mechanism such as
recorded deed restrictions and protective
covenants or recorded operation and
maintenance agreements that ensure
development activities will maintain the project
consistent with approved plans.

17-18 Accomplishment
The Operation and Maintenance Agreement is recorded with Henderson County Register
of Deeds. The City also maintains a hard copy of the agreement and electronic listing of
each BMP which included the location, owner and running list of inspection dates.
18-19 Objectives
Continue to require a recorded Operation and Maintenance Agreement for BMPs.

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BMP Measurable Goals
f. Provide a mechanism to
require long-term operation
and maintenance of
structural BMPs
The permittee shall implement or require an
operation and maintenance plan for the long-term
operation of the structural BMPs required by the
program. The operation and maintenance plan
shall require the owner of each structural BMP to
perform and maintain a record of annual
inspections of each structural BMP. Annual
inspection of permitted structural BMPs shall be
performed by qualified professional.

17-18 Accomplishment
City of Hendersonville ordinance requires that an annual inspection of permitted structural
BMPs shall be performed by a qualified professional and a copy sent to the city.
The City performs annual inspections of all public and privately owned SCM’s within the
city’s ETJ
18-19 Objectives
The City of Hendersonville’s Stormwater Administrator will continue the annual
inspections of all SCM’s operated in the city ETJ
BMP Measurable Goals
g. Inspections To ensure that all stormwater control measures
are being maintained pursuant to its maintenance
agreement, the permittee shall conduct and
document inspections of each project site
covered under performance standards, at least
one time during the permit term. Before issuing a
certificate of occupancy or temporary certificate
of occupancy, the permittee shall conduct a post-
construction inspection to verify that the
permittee’s performance standards have been
met or a bond is in place to guarantee completion.
The permittee shall document and maintain
records of inspection findings and enforcement

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actions make them available for reviewing by the
permitting authority.

17-18 Accomplishment
To ensure that all stormwater control measures are being maintained pursuant to
maintenance agreements, the City of Hendersonville conducts random inspections at
each project site covered under the performance standards, at least one time during the
permit term. Before issuing a certificate of occupancy or temporary certificate of
occupancy a post-construction inspection is performed.
18-19 Objectives
Continue inspections for all stormwater control measures within the city ETJ
BMP Measurable Goals
h. Educational materials and
training for developers
The permittee shall make available through paper
of electronic means, ordinances, post-
construction requirements, design standards
checklist, and other materials appropriate for
developers. New materials may be developed by
the permittee, or the permittee may use materials
adopted from other programs and adapted to the
permittee’s new development and redevelopment
program.

17-18 Accomplishments
Ordinances, post-construction requirements, design standards checklist, and other
materials appropriate for developers are available electronically on our website
(http://www.hendersonvillenc.gov/stormwater-management). All close out documents are
given to developers during the pre-con meetings and are available upon request.

18-19 Objectives
Continue to maintain the website and provide documents to developers during pre-con
meetings.
BMP Measurable Goals

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i. Enforcement The permittee shall track all issuances of notices
of violation and enforcement actions. This
mechanism shall include the ability to identify
chronic violators for initiation of actions to reduce
noncompliance.

17-18 Accomplishment
A digital file is created for all notices of violation that contains all information pertinent to
the project including owner information, contractor information, project address, any
permit numbers attached to the project, a copy of the written notice of violation and any
photos that were taken. These digital files are broken down by year. Every time a new
violation is discovered, the inspector reviews digital files containing previous notices of
violation to discover if a pattern of repeat violations is beginning to occur with a particular
contractor or owner prior to the new notice of violation being written.
18-19 Objectives
Continue to track the issuance of notices of violation and enforcement actions.
POLLUTION PREVENTION AND GOOD HOUSEKEEPING
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Pollution Prevention And Good Housekeeping

1. Objectives for Pollution Prevention and Good Housekeeping for Municipal
Operations.

a. Implement an operation and maintenance program that includes a training
component and has the ultimate goal of preventing or reducing pollutant runoff
from municipal operations.

b. Provide employee training to prevent and reduce stormwater pollution from
activities such as park and open space maintenance, fleet and building
maintenance, new construction and land disturbances, and stormwater system
maintenance.

2. BMPs for the Pollution Prevention and Good Housekeeping for Municipal
Operations.

The permittee shall implement the following BMPs to meet the objectives of the
Pollution Prevention and Good Housekeeping Program and shall notify the
Division prior to modification of any goals.

BMP Measurable Goals
a. Inventory of municipally
owned or operated facilities
The permittee shall maintain current inventory of
facilities and operations owned and operated by
the permittee with the potential for generating
polluted stormwater runoff.

17-18 Accomplishment
The Stormwater Administrator with the City of Hendersonville maintains a current
inventory of facilities and operations owned and operated by the City.

18-19 Objectives
Continue to work with the Stormwater Administrator to maintain a current inventory of
facilities.

BMP Measurable Goals
POLLUTION PREVENTION AND GOOD HOUSEKEEPING
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b. Operation and Maintenance
(O&M) for municipally
owned or operated facilities.
The permittee shall maintain and implement,
evaluate, annually and update as necessary an
Operation and Maintenance (O&M) program for
municipally owned and operated facilities with the
potential for generating polluted stormwater
runoff. The O&M program shall specify the
frequency of inspections and routine
maintenance requirements.

17-18 Accomplishment
Stormwater staff is in the process of working with each individual facility within the City of
Hendersonville to formalize and implement an Operation and Maintenance program for
each facility. The O&M will specify the frequency of inspections and routine maintenance
requirements.

18-19 Objectives
Finalize the O&M program for each City of Hendersonville facility.

BMP Measurable Goals
c. Spill Response Procedures
for municipally owned and
operated facilities
The permittee shall have written spill response
procedures for municipal operations.

17-18 Accomplishment
As part of the O&M program for each City facility, a written spill response procedure will
be included

18-19 Objectives
Finalize spill response procedures for all City facilities as part of the O&M program. Supply
Spill kits and Good Housekeeping posters to City facilities.

BMP Measurable Goals
d. Streets, road, and public
parking lot maintenance
The permittee shall evaluate BMPs to reduce
polluted stormwater runoff from municipally
owned streets, roads, and public parking lots
within their corporate limits. Within 12 months the
permittee must update the Stormwater Plan to
include the BMPs selected.

POLLUTION PREVENTION AND GOOD HOUSEKEEPING
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17-18 Accomplishment
The City of Hendersonville reduced polluted stormwater runoff from streets, road, and
public parking lots within our corporate limits by street sweeping and the use of a vacuum
truck. During this fiscal year we swept approximately 80 miles of curb and gutter.

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18-19 Objectives
Continue our street sweeping program.

BMP Measurable Goals
e. Streets, road, and public
parking lot maintenance
Within 24 months, the permittee must implement
BMPs selected to reduce polluted stormwater
runoff from municipally-owned streets, road, and
public parking lots. The permittee must evaluate
the effectiveness of these BMPs based on the
cost and the estimated quantity of pollutants
removed.

17-18 Accomplishment
The City’s street sweeping program deposits its collected material at the waste water
treatment facility and weight is not recorded.

18-19 Objectives
Continue our street sweeping program

BMP Measurable Goals
f. Operation and Maintenance
(O&M) for municipally-
owned or maintained catch
basins and conveyance
systems
Within 12 months, the permittee shall develop,
and implement, an O&M program for the
stormwater sewer system including catch basin
and conveyance systems that it owns and
maintains.

17-18 Accomplishments
The City of Hendersonville’s maintenance program consists of leaf and garbage pickup,
yard waste and brush removal, street sweeping, and storm-drain cleaning and
maintenance within the City’s right of way.

The City of Hendersonville’s Engineering Department currently maintains one full time
equivalent position for operations. This position is responsible for inspections of the storm
drain system maintained by the City.

The City of Hendersonville’s Public Works staff periodically cleans catch basins when
necessary in our maintained system. The Public Works Department upgrades or
rehabilitates existing structures when warranted. Public Works staff also street sweeps
approximately 80 miles of curb on an annual basis, our target is 4-6 times per year

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The City of Hendersonville’s Public Works Department operates a vacuum truck cleans
out storm drainage infrastructure when necessary. The city also operates a street
sweeper to assist with preventing any material from entering into the storm drainage
system. The City of Hendersonville’s Stormwater Administrator also responds to
complaints on storm drains and other structures as needed. The City of Hendersonville’s
Public Works staff cleans storm drainage system on an average of once per year or as
otherwise needed with the vacuum truck.

18-19 Objectives
Public Works and Stormwater staff will continue to clean and inspect all catch basins in
our system. The goal is to continue to operate vacuum trucks cleaning out storm drainage
pipes on a periodic basis, continue to clean the storm drainage system on an annual basis
and the City of Hendersonville plans to continue to perform street sweeping operations.

BMP Measurable Goals
g. Identify municipally owned
and maintained structural
stormwater controls
The permittee shall maintain a current inventory of
municipally-owned or operated structural
stormwater controls installed for compliance with
the permittee’s post-construction ordinance.

17-18 Accomplishments
The City of Hendersonville began developing and inventory of municipally owned and
operated stormwater control structures

18-19 Objectives
Continue to update and maintain the database.

BMP Measurable Goals
h. (O&M) for municipally-
owned or maintained
structural stormwater
controls
The permittee shall maintain and implement an
O&M program for municipally-owned or
maintained structural stormwater controls
installed for compliance with the permittee’s post-
construction ordinance.
The O&M program shall specify the frequency of
inspections and routine maintenance
requirements.
The permittee shall inspect and maintain all
municipally-owned or maintained structural
stormwater controls in accordance with the

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schedule developed by permittee. The permittee
shall document inspection and maintenance of all
municipally-owned or maintained structural
stormwater controls.

17-18 Accomplishments
Maintenance takes place on an as needed basis, mainly with City crews or volunteers.
Structural stormwater controls are inspected routinely by the Stormwater Administrator.

18-19 Objectives
Continue maintenance when needed.

BMP Measurable Goals
i. Pesticide, Herbicide and
Fertilizer Application
Management
The permittee shall ensure municipal employees
and contractors are properly trained and all
permits, certifications, and other measures for
applicators are followed.

17-18 Accomplishments
The City of Hendersonville Public Works and Parks departments ensures that municipal
employees and contractors are properly trained on application of pesticide, herbicide, and
fertilizer.

18-19 Objectives
Public Works and Parks departments will continue to require this training.

BMP Measurable Goals
j. Staff training The permittee shall implement an employee
training program for employees involved in
implementing pollution prevention and good
housekeeping practices

17-18 Accomplishments
Stormwater staff conducted Municipal Stormwater Pollution Prevention training to the
following divisions: Public Works/ Water and Sewer

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18-19 Objectives
Conduct Municipal Stormwater Pollution Prevention training for the remaining
departments within the city.

BMP Measurable Goals
k. Prevent or Minimize
Contamination of
Stormwater Runoff from all
areas used for Vehicle and
Equipment Cleaning
The permittee shall describe measures that
prevent or minimize contamination of the
stormwater runoff from all areas used for vehicle
and equipment cleaning.

17-18 Accomplishments
The City has a wash bay with an oil water separator where vehicles and equipment are
cleaned.

18-19 Objectives
Continue to require vehicles and equipment be washed at the city’s wash bay.
TOTAL MAXIMUM DAILY LOADS (TMDL’s)
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Total Maximum Daily Loads (TMDL’s)

NO TOTAL MAXIMUM DAILY LOADS HAVE BEEN ESTABLISHED IN THE MS4