NCS000584_DRAFT COL Storm Drainage System & Parking Lot Maintenance Plan 2019_20200720

7RAF
CITY OF LEXINGTON
STORM DRAINAGE SYSTEM &
PARKING LOT MAINTENANCE
PLAN
LEINTN
NORTH CAROL INA
WATER Rr•.souRcEs
QUALITY FIAST
IFY
2020
Rev. 10/19

Street Department
Organizational Chart
Public Senices
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Table 1. Street Department Equipment Inventory
Unit
Number
Year
Make
Model
Description
Table 2. City Departments Equipment Inventory
Available for Storm Drainage & Parking Lot Maintenance
Dept.
Unit
Number
Year
Make
Model
Description
Table 3. Storm Drainage Maintenance Budget: (includes materials, tipping fees & system
cleaning costs, storm drain equipment purchases/leasing, fuel, contracted work)
FY
Storm Drainage Maintenance & Repair
Spending, $
% increase/decrease
from previous budget
2017-18
2018-19
2019-20
2

Table 4. Department Work Divisions
Major storm drainage system assignments (storm drainage construction, side ditch grading, structure &
pipe repair, outfall ditch & culvert maintenance, street & parking lot sweeping, structure
cleaning/vacuum operation, curb & gutter repair, ESC measure installations, establishing vegetation,
etc...)
Crew #
Training & Proficiencies
Routine Project
Assignments
1
2
3
4
Storm Drainage System Maintenance
Standard Operating Procedures
Stormwater System Inspection and Maintenance
Stormwater system shall be maintained for structural integrity and observed for evidence of illicit discharges and
verification of areas prone to fast sediment accumulation or contamination.
• Stormwater system (including inlets, lines, manholes, ditches, and other structures) are cleaned and maintained
according to the established schedule. The current drainage system maintenance schedule is included in Table 5
below.
• Storm drain catch basins are cleaned on average _ times per year. Storm drain structure cleaning occurs from
to each year.
• To ensure that water from jetting and flushing inlets and lines is not discharged into the storm system; a vac
truck is used to vacuum up flush water downstream while jetting and flushing inlets and lines upstream.
• Street sweeping to collect materials and debris from catch basin grates, roadway gutters and pavement is
completed according to an established annual schedule provided in Table 6 below.
• Any areas needing attention are documented and scheduled for prompt repair. The storm drainage maintenance
schedule is revised as needed for these repairs.
• Records are made of "hot spot" areas (areas prone to excessive sediment accumulation). Known hot spot
locations are included in the storm drainage system route map.
• Any suspected illegal connections, unusual stormwater discharges and dumping are documented and reported
to the Stormwater Administrator, Roger Jones. Phone: [phone]

Disposal of Wastewater from Vac Trucks
• Wastewater from vac trucks is discharged for treatment at: WWTP Compost Facility, 500 Glendale Rd, Lexington.
Debris Disposal and Storage
• The daily permanent debris disposal site is located at: Davidson County Landfill, 1160 Old Hwy 29, Thomasville.
• A covered temporary storage bay or covered leak proof container may be used for debris storage in case of
documented circumstances necessitating storage. The temporary storage area is located at:
• Uncontaminated stored debris must be removed and taken to the permanent disposal site within 20 workdays.
• If debris is suspected to be contaminated, it should be tested immediately to determine if additional soil
removal is required and to establish the proper disposal method. Contaminated soil and debris must be stored
in a covered location in water tight dumpster while awaiting disposal.
• The hazardous waste testing and disposal company is: Phone:
Hazardous waste must be documented, hauled and disposed according to protocols specified by the waste
testing company.
Ditches and open conveyances
• Inspect ditches for signs of erosion.
• Track ditches prone to erosion and apply erosion control materials & seed accordingly. Add to "Hot Spot"
maintenance schedule.
• Do not apply pesticides or fertilizers in drainage ditches, roadways, or curbs.
• Do not disturb creeks, wetlands, or wildlife habitat areas prior to verifying permit need from NC DEQ/Corps of
Engineers.
Contracts and Contractors
• City contracts include stormwater pollution prevention language and require compliance with the City
Stormwater Management Plan.
• City inspectors shall make inspections to ensure that contractors implement proper BMPs to prevent
stormwater pollution.
Record Keeping and Documentation
• The current Storm Drain System maintenance schedule & map are attached and copies are also kept in a binder
for employee access at:
• Street sweeping, storm drainage maintenance & debris removal activities are documented & logs are
maintained at:
• The inventory of hot spot areas where contamination has been confirmed and require frequent inspections is
recorded on the storm drainage maintenance logs and sites are included in the storm drain system map
attached.
• Records of all hazardous materials testing of debris removed from catch basins is located at:
Required training
Street Department employees must attend annual Good Housekeeping & Stormwater Pollution Prevention training,
which includes an Illicit Discharge Detection segment for operations department staff.
Stormwater O&M Equipment and Materials
Street Department employees are provided the following items to conduct proper storm drainage system maintenance
and inspections:
• Storm Drain Maintenance Schedule
• Storm drain system map with route boundaries identified
• Storm drain maintenance log
• Vacuum truck/jetting equipment (refer to equipment inventories in Tables 1 & 2 above)
• Cameras, flash lights, hand tools, PPE
4

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Table 7. Routine pre-rainfall/post-rainfall event inspections
Map Route
Location/Intersection
Structure
Description
Comments

Storm Drainage System Route Map
("Hot spot" erosion areas, major rainfall event inspection points, & City parking lots are identified)

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