02_Stormwater O&M Plan

New Bern
North Carolina
Stormwater Infrastructure
Operation and Maintenance plan
October 8, 2021
Rk
NORTH CAROLI NA

Table of Content
Stormwater Infrastructure
Operation and Maintenance
1. Introduction---------------------------------------------------- 2
2. Catch Basins ---------------------------------------------------- 2
3. Streets and Parking Lots ------------------------------------- 3
4. Storage and Disposal of Collected Debris ---------------- 4
5. Municipal Stormwater Control Measures --------------- 4
Appendices
Appendix A
— Stormwater Infrastructure Map ----------------------- 5
Appendix B
— Stormwater Activity Form ------------------------------ 6
Appendix C
— Inventory of Municipal Stormwater Control
Measures---------------------------------------------------------------------- 7
Appendix D
— Structural Stormwater Control Measures
Maintenance
Report--------------------------------------------------------- 8
Appendix E —
Litter Pick-up Tracking Form --------------------------
Page 11 13

I Introduction
This Operation and Maintenance (O&M) Plan has been prepared by The City of New Bern to address
stormwater infrastructure O&M requirements' of the United States Environmental Protection
Agency's(USEPA's) National Pollutant Discharge Elimination System (NPDES) General Permit for
Stormwater Discharges from Municipal Separate Storm Sewer Systems (MS4) hereafter referred to as
the "MS4 Permit."
This O&M Plan addresses Minimum Control Measure 6, Good Housekeeping and Pollution Prevention
for the Permittee Owned Operations, by describing the activities and procedures the City of New Bern
will implement so that the MS4 infrastructure is maintained in a timely manner to reduce the discharge
of pollutants from the MS4. The O&M Plan outlines inspection and maintenance procedures for catch
basins, municipally owned streets and parking lots, structural Stormwater Control Measures (SCMs)
and litter pick-up.
The Stormwater Division of the Public Works Department is responsible for inspection and
maintenance of the stormwater infrastructure in New Bern. A map of the existing stormwater
infrastructure in New Bern is provided in Appendix A.
Catch Basins
The Stormwater Division of the Public Works Department performs routine inspections, cleaning,
and maintenance of the approximately 4000 catch basins that are located within the MS4 regulated
area. The City of New Bern will implement the following catch basin inspection and cleaning
procedures to reduce the discharge of pollutants from the MS4.
• Catch basins should be cleaned such that the basins are no more than 50 percent fu112 at any
time. The City of New Bern will initially inspect all catch basins within the regulated area
within two (2) years of the effective date of the permit to evaluate sediment or debris
accumulation and establish optimal inspection and maintenance frequencies to meet the "50
percent" goal. A Stormwater activity form is included in Appendix B.
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• If a catch basin sump is more than 50 percent full during two consecutive routine inspections
or cleaning events, the finding will be documented, the contributing drainage area will be
investigated for sources of excessive sediment loading, and to the extent practicable,
contributing sources will be addressed. If no contributing sources are found, the inspection
and cleaning frequency will be increased.
• Catch basins located near construction activities (roadway construction, residential,
commercial,or industrial development or redevelopment) will be inspected and cleaned
more frequently if inspection and maintenance activities indicate excessive sediment or
debris loadings (i.e., catch basins more than 50 percent full). Priority will also be given to
catch basins that discharge to impaired waters.
• The following information will be included in each annual report:
o Any action taken in response to excessive sediment or debris loadings
o Total number of catch basins
o Number of catch basins inspected
o Number of catch basins cleaned
o Total volume or mass of material removed from catch basins.
3 Streets and Parking Lots
Streets and municipally owned parking lots are swept on a one -month rotation. The City of New Bern will
implement the following street and parking lot sweeping procedures toreduce the discharge of pollutants
from the MS4:
• All streets with the exception of rural uncurbed roads with no catch basins or high-speed
limited access highways will be swept and/or cleaned a minimum of once per year.
• More frequent sweeping will be considered for targeted areas based on pollutant load
reduction potential, inspections, pollutant loads, catch basin cleaning or inspection results,
land use, impaired waters, or other factors.
• More frequent sweeping is required for municipally owned streets and parking lots in areas
that discharge to certain nutrient -impaired waters. Sweeping must be performed in these
areas a minimum of two times per year, once in the spring and at least once in the fall (Sept
1 — Dec 1; following leaf fall).
• For rural uncurbed roadways with no catch basins and limited access highways, the
City of New Bern will either meet the minimum frequencies above, or develop and
implement an inspection, documentation, and targeted sweeping plan outlining
reduced
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frequencies within two (2) year of the effective date of the permit and submit such plan with its
year one annual report.
• The following information will be included in each annual report:
o Number of miles cleaned, or the volume or mass of material removed.
4 Storage and Disposal of Collected Debris
Catch basin cleanings (i.e., solid materials such as leaves, sand and twigs removed from stormwater
collection systems during cleaning operations) and street sweepings will be managed at the city's solid
waste facility until it can be transported to the Craven County Government Landfill or suitable
materials are use at the wood burning power plant in Craven County.
5 Municipal Stormwater Control Measures
The City of New Bern has several facilities that were constructed after the implementation of the
stormwater rules. An inventory of these facilities is listed in Appendix C. We have since contracted
the maintenance of these SCMs. You find an example of the report provided by our contractor after
routine maintenance in Appendix D.
ll:
Litter Pick-up
The City of New Bern has a dedicated litter crew made up of a staff member and inmate labor. Their
daily routine consists of emptying of municipal trash receptacles and cleaning of city rights -of -way.
Progress is tracked using a simplistic track sheet, example in Appendix E
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Appendix A
Stormwater Infrastructure Map
For a detailed view of our map visit
https://www.newbemnc. ova/departments/public works/stormwater.php
5113

Appendix B
Stormwater Activity Form
Stormwater Daily Activity Log
Date Location Task Being Performed Am R m �aab`'s
Employee Name: Vehicle Type:
The form above gives staff a simplistic method to track the cleaning of catch basins and any
other maintenance activity that may arise throughout their daily routine.
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Appendix C
Inventory of Municipal SCMs
Name of Facility
Location
SCM Type
Fire Headquarters
1401 Neuse Blvd.
Wet Detention Basin and
Grass Swale
Fire Training Grounds
333 Glenburnie Drive
Wet Detention Basin
Public Utilities Facility
210 Kale Rd.
Wet Detention Basin and
Grass Swale
New Bern Swim Complex
1155 Laura Lane
Wet Detention Basin and
Grass Swale
Public Works Facility
1004 South Glenburnie
Road
Wet Detention and Bio-
retention Cell
Water Treatment Plant
521 HWY 55 West
Wet Detention Basin
West Thurman Road Fire
Station
800 West Thurman Road
Wet Detention Basin
Page 7 1 13

Appendix D
Stormwater Control Measure Maintenance Report
drat nflx
PON WORK
Ni (iwr f,rrr�J Spr..
PO Box 1089
Apex NC 27502
919-851-0033
Client Log - Coastal Date: 01/29/2020
PROJECT DETAILS
Dragonfly Maintenance Report
Propertv
NB FIRE HEADQUARTERS
Client Name
Avery Smith
Client Email Address
[e-mail]
Client Email Address 2
Client Email Address 3
Client Email Address 4
Number of Ponds & Pond Type
1 Wet Pond
Service Type
Standard
Mowinq Schedule
None
Mowinq Service
None
Special Instructions
Dye
Pond Locations
http://imageshack.com/...
MAINTENANCE LOG
Pond Name
Access Address
Service Date
Trash Pickup
Treat Invasives
Inlet service
Outlet Service
Uncloq Drain
Clean Riser/Trash rack
Add Dye?
Fountain/Aerator Condition
Mow/Weed eat
WPl (0.15ac)
1401 Neuse Blvd, New Bern, NC 28560
01/21/2020
SC= Service Completed
NN= Service Not Needed
NN= Service Not Needed
NN= Service Not Needed
NN= Service Not Needed
NN= Service Not Needed
SC= Service Completed
N/A= Not Applicable
NN= Service Not Needed
Submitted by Crew Leader at 01/29/2020 12:31 LTC Page. 1
Ca tured at 01/2912020 12:31 UTC aocanvas.com
Submission ID: 3B11897B-2162.435C•8098-A97C09AA2450
Page 8113

PO Box 1089
Apex NC 27502
dragonflx 919-851-0033
PON WORK
Client Log - Coastal Date: 01/29/2020
overview of the pond
Dam
Submitted by Crew Leader at 01/29/2020 12:31 UTC Page: 2
Captured at 01/29/2020 12:31 UTC aocanvas.com
Submission ID: 3B11897B-2162.435C-8098-A97C09AA2450
Page 9 1 13

PO Box 1089
Apex NC 27502
dragonflx 919-851-0033
P O N W O R K
Client Log - Coastal Date: 01/29/2020
Riser
Inlet
Submitted by Crew Leader at 01/29/2020 12:31 UTC Page: 3
Captured at 01/29/2020 12:31 UTC aocanvas.com
Submission ID: 3B11897B-2162.435C-8098-A97C09AA2450
Page 10 113

PO Box 1089
Apex NC 27502
dragonflx 919-851-0033
P O N W O R K
Client Log - Coastal Date: 01/29/2020
Additional Notes
Erosion at north inlet persists. (Image 1) Recommend addition of rip rap to prevent further erosion.
Noted Imaqe 1
HANDOFF SCREEN
Press next to upload submission
Submitted by Crew Leader at 01/29/2020 12:31 UTC Page: 4
Captured at 01/29/2020 12:31 UTC aocanvas.com
Submission ID: 3B11897B-2162.435C-8098-A97C09AA2450
Page 11 1 13

Appendix E
Litter Control Tracking Form
Date
Location of Trash Receptacle or
Litter Pick-up
Type of Litter/Debris
Retrieved. Was it Hazardous?
Approximate Amount
Retrieved
10/11/21
City Hall Trash Receptacle
Bagged trash/no
60 Pounds
10/11/21
Simmons Street
Household Garbage/Yes,
several paint cans
30 pounds
The above chart is a representation of the form used in the field by staff.
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