HomeMy WebLinkAboutNC0026557_NOVNOI2020LV0373_RESP_20200505May 5, 2020
G. Landon Davidson, P.G., Regional Supervisor
Water Quality Regional Operations Section
Asheville Regional Office
Division of Water Resources, NCDBQ
Subject: Response to Notice of Violation
Nov-2020-LV-0373
Permit No. NCO026557
Bryson City W WTP
Swain County
Town of Bryson City
Municipal Office
P.O. Box 726
Bryson City, NC 28713
Telephone (828) 488-3335
Fax (828) 488-9474
Water Quality Regional Operations
Asheville Regional Office
The Town of Bryson City has taken the following actions in response to the Notice of Violation and Intent
to Assess Civil Penalty letter dated April 30, 2020 for exceeding the monthly average at the wastewater
treatment plant.
As we have continued to experience heavy rain events, we have taken the following steps to address the
Inflow and Infiltration (I&I) in our system:
I) We have received $95,000 for an Asset Inventory and Assessment Grant. This funding has been
used to conduct a comprehensive infiltration/inflow evaluation of our sanitary sewer collection
system. The results are being used to help the Town prioritize the areas to repair and/or replace
within the sewer system which will have the most impact in reducing I&I. Flow meters, smoke
testing, and video inspections of the sewer lines have been performed. McGill Associates, the
engineer responsible for completing the study is currently putting together a comprehensive report.
2) From the initial study above, McGill Associates identified 13 projects for the Town to complete in
order to address inflow/infiltration in the sewer collection system. (Attached)
We have completed #3, 4, and 11. We have ordered manholes and will begin #1,5, 12, 13 in the
next two weeks.
Please contact me if you have additional questions concerning this response.
Sincerely,
) � meA A�3
Reg athis
Town Manager, Bryson City
828-488-3335
828-736-7448
reginamathis@brysoncitync.gov
brysoncitync.gov
Mayor Tom Sutton Board ofAldermea Benjamin King Janine Crisp, Heirti Ramsey -Woodard & Chad Smith
Regina Mathis,Town Manager Fred Moody Jr.,Town Attorney Carla Passumre, Tax Collector Lynn Thonms, Town Clerk
Tam Shoolr, Public Worhs Supervisor
In accordance ivith Federallmv and U.S. Deparinient ofAgiiculture policy, this institution is proldbited fiam discriminating on the basis of race, color,
national origin, age, disability, religion, sex, and familial status. (Not all prohlbited bases apply to all programs). Tolle a complaint of rliscrindnadon, virile
USDA, Director, office of civil nights, 1400 independence Avenue, S.W., Washington, D.0 20250-9410 or call (866)632-9992 (English) or (800)877-
8339(TDD) or (866)377-8642(English Ferleral-relay)or (800)845-6136 (Spanish -relay).
IMMEDIATE NEEDS FOR REHABILITATION OF INFLOW / INFILTRATION
TOWN OF BRYSON CITY SEWER COLLECTION SYSTEM
UPDATED MARCH 18, 2020
MH R398A Lemons Branch
Inadequate concrete make -shift MH in ditch line. Significant 1/1 point and SSO point.
2OPOSED FIX: Use concrete to form base and install frame and lid with mastic to temporarily seal MH from
noff in ditch line. Reroute storm ditch to divert runoff.
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0 150 300 Feel
IMMEDIATE NEEDS FOR REHABILITATION OF INFLOW / INFILTRATION
TOWN OF BRYSON CITY SEWER COLLECTION SYSTEM
UPDATED MARCH 18, 2020
Bryson Walk at Pine Ave
Several smoke pops /. collapsed line
Repair cleanouts. Point repair. Exploratory excavation of storm catch basins.
0 150 50 300 Fee[
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IMMEDIATE NEEDS FOR REHABILITATION OF INFLOW / INFILTRATION
TOWN OF BRYSON CITY SEWER COLLECTION SYSTEM
UPDATED MARCH 18, 2020
MH 62 - Island and Greenlee Streets
Smoke evidence at storm drains. Infiltration at 3 o'clock inverts.
Replace MH with new PVC stub -outs. Rebuild storm drain catch basins.
0 150 300 feet
IMMEDIATE NEEDS FOR REHABILITATION OF INFLOW / INFILTRATION
TOWN OF BRYSON CITY SEWER COLLECTION SYSTEM
UPDATED MARCH 18, 2020
MH 336 at West Deep Creek Estates taps
Good condition except for holes in invert. 12 to 15 gpm infiltration.
Mountain grout injections to permanently seal 1/1 points.
0 150 300 feet
IMMEDIATE NEEDS FOR REHABILITATION OF INFLOW / INFILTRATION
TOWN OF BRYSON CITY SEWER COLLECTION SYSTEM
UPDATED MARCH 18, 2020
MH 119 on Franklin Grove Church Road
MH is newer and in very good condition except that joints are leaking. Significant infiltration.
PROPOSED FIX: Check infiltration for chlorine. If chlorine present, exploratory excavation to find leak.
Replace mastic to stop infiltration.
0 t50 3001=eet
IMMEDIATE NEEDS FOR REHABILITATION OF INFLOW / INFILTRATION
TOWN OF BRYSON CITY SEWER COLLECTION SYSTEM
UPDATED MARCH 18, 2020
MH 124 at Bryson Creek Apartments
Constant 1/1 from previously abandoned line.
Excavate and cap off previously abandoned line. Completely grout fill abandoned line
ho
0 160 300 Feet
IMMEDIATE NEEDS FOR REHABILITATION OF INFLOW / INFILTRATION
TOWN OF BRYSON CITY SEWER COLLECTION SYSTEM
UPDATED MARCH 18, 2020
MH R415 on Veterans Blvd.
CONDITION: Unknown type of line has penetrated sewer line by possible bore/HDD. Found by CCTV.
Infiltration and blockage.
Identify unknown line and reroute it. Point repair of sewer line.
0 150 aco Fees
10
creek.
IMMEDIATE NEEDS FOR REHABILITATION OF INFLOW / INFILTRATION
TOWN OF BRYSON CITY SEWER COLLECTION SYSTEM
UPDATED MARCH 18, 2020
MH 81 south of Bryson Walk at creek
MH 81 has several points of infiltration. Several attempts to patch evident. SSO and 1/1 to and
Replace manhole.
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0 150 300 Feel
ID NO.: 11
IMMEDIATE NEEDS FOR REHABILITATION OF INFLOW / INFILTRATION 11
TOWN OF BRYSON CITY SEWER COLLECTION SYSTEM
UPDATED MARCH 18, 2020
MH 68 on Fry Street. 4" lateral.
4" lateral is unused and a source of 1/1.
Abandon 4" lateral. Plug with hydraulic cement and cap.
I —ram
0 150 300 Feet
-x To 15e1
12
IMMEDIATE NEEDS FOR REHABILITATION OF INFLOW / INFILTRATION
TOWN OF BRYSON CITY SEWER COLLECTION SYSTEM 12
UPDATED MARCH 18, 2020
MH 69 on Fry Street
IDITION: 4" unused lateral is source of 1/1. Force main entrance point from Lackey Hill PS. Broken invert
housing deteriorated badly.
Replace manhole with one better engineered to accept force main velocity. Cap the 4"
�I
0 150 300 Feet
10 CW3 n.
13
IMMEDIATE NEEDS FOR REHABILITATION OF INFLOW / INFILTRATION
TOWN OF BRYSON CITY SEWER COLLECTION SYSTEM
UPDATED MARCH 18, 2020
Line between MH 68 and MH 69
DITION: Line section between MHs 68 and 69 accepts significant flow via force main. Line integrity and
should be evaluated.
Perform cleaning and CCTV investigation on this section.
0 150 300 Feel