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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