HomeMy WebLinkAbout05_NCS000544_O&M Plan for Storm Sewer System_20220922Town of Butner
Operation and Maintenance Program for the Storm Sewer System
June 2022
In Support of the Town's NPDES Phase II MS4 Permit
Stormwater System Operations and Maintenance
Description
The Town of Butner maintains 32 miles of storm drainage infrastructure, mostly made up of open channel
ditches on either side of 15.9 miles of Town -maintained streets.
Practices
Reclamation of ditches
Since the Town's incorporation in 2007, the Public Works Department has been making progress on its
program to reclaim the Town's conveyance system of ditches. Most were overgrown and did not function well
as a result of the State's low level of service in the many years preceding incorporation. The first round of
reclamation work has been completed. Ditch reclamation involves removing large overgrown vegetation and
sediment deposits that are impeding the flow of stormwater and causing standing water or erosion.
Ditch Maintenance/Repair
Butner's Public Works Department receives complaints regarding poor drainage, standing water, or flooding.
The Town receives frequent drainage complaints. Response to drainage complaints is prioritized: issues that
cause street drainage problems are resolved first, then ones that cause private property damage or issues. The
Town works only in its own rights of way, except for some exceptional circumstances requiring work in North
Carolina Department of Transportation rights of way. The Town dos not work in private drainage ways or in
streams.
To resolve drainage issues, the Town completes a number of driveway culvert replacement projects every year.
The Town's driveway culvert replacement projects are funded with Powell Bill funds. Records of complaints
are kept in a spreadsheet that is updated by the administrative assistant.
Leaf Collection
The Town does not have a leaf collection program. Leaf burning is allowed, but items intentionally cut from
trees or shrubs, and any fallen limbs over 4" in diameter must be hauled to the dump.
Catchments
Public Works staff performs monthly inspections catchment basins in Town. If over half full cleaning occurs.
The debris is hauled to the dump. To improve record keeping, the Town is preparing to implement a new
inspection form for catchment basins.
Outfalls
The operations and maintenance of outfalls is detailed in the Town of Butner IDDE Manual. Outfalls are to be
inspected quarterly. Pictures will be taken as part of the inspection. If an illicit discharge is detected a Notice of
Violation will be sent to the property owner of the use responsible for the violation per article 4 of the Town of
Butner Land Development Ordinance (LDO).
Public Works Building
The operations and maintenance of the Town of Butner Public Works facilities is detailed in the Stormwater
Pollution Prevention Plan.
Municipal SCM's
The Town maintains 7 SCM's.. Five are located at the Butner Athletic Park and two are located at Butner Town
Hall.. The Town of Butner Water Supply Watershed Protection Ordinance requires that all runoff control
structures be inspected monthly to ensure they are being maintained and are functioning as originally designed.
As part of this inspection process, the Public Works Department provides an annual maintenance inspection
report using the attached form. If repair work is required it is done immediately and a follow up inspection is
performed. Town facilities have yet to need repair work.
Annual SCM Inspection Form
WATERSHED PROTECTION ANNUAL MAINTENANCE INSPECTION REPORT
The Town of Butner Water Supply Watershed Protection Ordinance requires that stormwater control structures be inspected annually to insure they
are being maintained and are functioning as originally designed.
A. General Information:
Tenant Name: Owner Name:
Location: Owner Address:
Map/Parcel No.: Tenant/Contact Name:
Water Supply Watershed: Tenant/Contact Address:
B. The following stormwater runoff controls are found at this project site:
Wet Detention Pond Sand Filters _ Extended Dry Detention Infiltration Devices
Extended Detention Pond Bioretention Area Filter Strips Stream Buffers: ft.
Grassed Swales Pocket Wetlands Other:
C. THE RESULTS OF THIS YEAR'S INSPECTION AREAS FOLLOWS:
VISUAL INSPECTION FOUND NO APPARENT PROBLEMS.
COMPLETE THE REPAIR AND/OR MAINTENANCE ITEMS INDICATED BELOW WITHIN 90 DAYS OF THIS REPORT:
D. Repair and/or maintenance items to be completed within 90 Days:
Ponds/Basins:
DAM TOP & SLOPES / FACES
Remove trash & high bushes.
Repair (applicable problems circled): holes, slides,
depressions, cracks.
Evidence of (applicable problems circled): seepage,
.................
overtopping.
Repair eroded areas.
.__......._.
Seed bare areas.
EMERGENCY SPILLWAY
Remove trees and high bushes.
........ -......
Repair eroded areas.
................
Seed bare areas.
Repair displaced rip -rap.
Remove obstructions from spillway.
Enlarge spillway to adequate capacity.
Other Controls:
PRINCIPAL & WQSPILLWAYS
Clear obstructed water quality hole or riser.
Repair riser/barrel (applicable problems circled): leaking, cracked,
deteriorated, collapsed, damaged.
Repair concrete spillway (applicable problems circled): leaking,
cracked, deteriorated, spalling, damaged.
Outlet end of barrel is eroded or blocked.
....—.
Filter rock is clogged.
IMPOUNDMENT
Repair eroded inlet channel and/or drains.
Repair eroded slopes.
Clean sediment from fore bay area.
Permanent pool less than 3 feet. Perform pond volume check.
Clean clogged filter surface.
OTHER:
Restore sheet flow Remove debris/trash Restore vegetation
E. Additional Comments/Recommendations:
Other:
Please notify us when work is complete or if you have questions.
Inspection by:
Michael Ciriello, AICP: P.O. Box 270 Central Avenue, Butner, NC 27509 — P. 919.575.3032 F.919.575.3034—mciriello(@butnernc.org
Outfall Inspection Form
OUTFALL RECONNAISSANCE INVENTORY FIELD SHEET
Section l: Background Data
Outfall ID:
Subwatershed (if known):
Today's date:
Time (Military):
Investigators:
Form completed by:
Temperature ff):
Rainfall (in.): Last24 hours:
Last 48 hours:
Camera:
Photo 11s:
Land Use in Drainage Area (Check all that apply):
❑ Industrial
❑ Ultra -Urban Residential
❑ Suburban Residential
❑ Commercial
❑ Open Space
❑ Institutional
Other:
Known Industries:
Notes (e.g.., origin of outfall, if known):
Section 2: Outfall Description
LOCATION
MATERIAL
SHAPE
DIMENSIONS (IN.)
SUBMERGED
❑RCP ❑CMP
❑Circular
❑Single
Diameter/Dimensions:
In Water:
❑ No
El PVC ❑HDPE
❑Eliptical
❑Double
El Partially
❑ Fully
❑ Closed Pipe
❑ Steel
❑ Box
❑ Triple
With Sediment:
El Other:
❑Other:
El Other:
❑No
❑ Partially
❑Fully
El Concrete
❑ Trapezoid
Depth:
❑Earthen
El drainage
❑Parabolic
Top Width:
El rip -rap
❑Other:
Bottom Width:
❑ Other:
Flow Present?
❑ Yes ❑No
Flow Description
❑ ❑ Trickle Moderate ❑Substantial
(If present)
Section 3: Physical Indicators for Both Flowing and Non -Flowing Outfalls
Are there any physical indicators that are not related to flow present? ❑ Yes ❑ No Qf No, Skip to Section 4)
INDICATOR
CHECK if
Present
DESCRIPTION
COMMENTS
El
❑ Spatting, Cracking or Chipping ❑ Peeling Paint
Outfall Damage
❑ Corrosion
Deposits/Stains
❑
El Oily El Flow Line El Paint ❑Other:
Abnormal
❑
❑Excessive El Inhibited
Vegetation
El ❑Colors ❑Floatables El Sheen
Poor pool quality
El
❑ Suds ❑ Excessive Algae ❑ Other:
Pipe benthic growth
❑
❑ Brown ❑ Orange ❑ Green ❑ Other:
Outfall Reconnaissance Inventory Field Sheet
Section 4: Quantitative Characterization for Flowing Outfalls Only
Is flow present? ❑ Yes ❑ No QfNo, Skip to Section 6)
FIELD DATA FOR FLOWING OUTFALLS
PARAMETER
RESULT
UNIT
EQUIPMENT
❑Flow #1
Volume
Liter
Bottle
Time to fill
Sec
❑Flow #2
Flow depth
In
Tape measure
Flow width
Ft, In
Tape measure
Measured length
Ft, In
Tape measure
Time of travel
S
Stop watch
Section 5: Physical Indicators for Flowing Outfalls Only
Are there any Physical Indicators Present in the flow? ❑ Yes ❑ No QfNo, Skip to Section 6)
INDICATOR
CHECK if
Present
DESCRIPTION
RELATIVE SEVERITY INDEX (1-3)
Odor
❑
❑Sewage ❑Rancid/sour ❑Petroleum/gas
❑ 1
❑2 detected
❑3 —Noticeable from a
El Sulfide ❑Other:
—Faint
—Easily
distance
❑
❑ Clear [:]Brown ❑ Gray ❑ Yellow
❑ 1— Faint colors in
❑ 2 — Clearly visible in
❑ 3 — Clearly visible in
Color
❑Green ❑Orange ❑Red []Other:
sample bottle
sample bottle
outfall flow
Turbidity
❑
See severity
❑ 1 — Slight cloudiness
❑ 2 — Cloudy
❑ 3 — Opaque
Floatables
❑
❑Sewage (Toilet Paper, etc.) ❑Suds
❑ 1 —Few/slight; origin
❑ 2 — Some: indications
of origin (e.g.,
❑ 3 - Some; origin clear
(e.g., obvious oil
-Does Not Include
Trash!!
❑ Petroleum (oil sheen) ❑ Other:
not obvious
possible suds or oil
sheen, suds, or floating
sheen)
sanitary materials)
Section 6: Overall Outfall Characterization
❑ Unlikely ❑ Potential (presence of two or more indicators) ❑ Suspect (one or more indicators with a severity of 3) ❑ Obvious
Section 7: Any Non -Illicit Discharge Concerns (e.g., trash or needed infrastructure repairs)?
Section 8: Signature
Print Name
Proposed Annual Catchment Basin Form
CATCH BASIN INSPECTION FORM
Job No.: Town: Inspector: Date:
Catch Basin I.D.
Ll Li
Final Discharge from Structure? Yes No
If Yes Discharge to Outfall No:
Catch Basin Label:
Stencil TTund Inset Sign None
Other
Concrete Li
❑ ❑
Basin Material:
Corrugated metal ❑
Stone ❑
Good ❑ Poor ❑
Catch Basin Condition:
Fair Crumbling
Brick
Other:
Concrete ❑
HDPE ❑
Inlet Dia. (in): d=
Pipe Material:
PVC ❑
Pipe Measurements:
Clay Tile
Outlet Dia. (in): D—
Other:
f9quired Maintenance/ Problems (check all that apply):
❑
❑ Tree Work Required
❑ Cannot Remove Cover
❑ New Grate is Required
❑ Ditch Work
❑ Pipe is Blocked
❑ Corrosion at Structure
❑ Frame Maintenance is Required
❑ Erosion Around Structure
❑ Remove Accumulated Sediment
❑ Remove Trash & Debris
❑ Pipe Maintenance is Required
Need Cement Around Grate
Basin Undermined or Bypassed
Other:
Catch Basin Grate Type:
Sediment Buildup
More than 50%
Description
of
Street Name/
❑
Depth:
full?
Flow:
Structure Location:
Bar: ❑
❑
❑
Cascade:
0-6 (in):
Yes
Heavy
❑
Other:
6-12(in):
❑
Moderate ❑
❑
12-18 (in):
No
Slight
❑
Properly Aligned: Yes ❑
18-24 (in):
Trickling
No
24 + (in):
*If the outlet is submerged check yes and indicate approximate
height of water above the
El
—j
El
outM invert. h above invert (in):_
yes
No
Flow
Observations:
Circle those present:
Color:
Foam
Oil Sheen
Standing Water
Odor:
171
check one or both
Sanitary Waste
Orange Staining
Bacterial Sheen
Floatables
Weather Conditions :
Dry > 24 ors et
Sample of Screenings Collected for Analysis? Yes No
Amount of sediment removed:
Excessive
Pet Waste
sediment
Comments:
Optical Enhancers
Other:
June 2022
Catch Basin Inspection and Cleaning Log
Date
Inspector
Weather
Conditions
Number of Catch
Basins
Inspected/Cleaned
Amount of Material
Removed
Catch Basins More Than
50% Full
Corrective Action
Taken/Recommended
if More Than 50% Full
June 2022