DEQ-CFW_00004348

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A0Type ofpermits orplans most familiar with:
iIndividual Permits (l`200)
Municipal WWTPs
Ludnotrim}WW'FPe
Private }00%donnoeiio\yW?Pe
Groundwater ronnocbaCiondischarges
Water Treatment Plant discharges
Version 2-22-2011
Q.Geucral Pennits(1,?4l)
l} Non -contact cooling water, boiler
cooling tower, condensate, hydroelectricdumn
DGrnUndwateromediation(for
3)Sand dredging
4}Fish/Seafood packing & rinsing, fiabbuzua
5) Single family residence
Primary customer: (ammples:commercial facility, residential, local government, fanneo)
A. Individual Permits (1,268)
Municipal \yW7PeD6Olarge and major >1 MGD.14small and major <1MGD(111ofm jom14omal|+ST|arge
have Pretreatment Programs), 123 minor municipals < 1 MGD]
Reviewed 3Omajor PnatreaUnont Municipalities 0zassess the impact ofthe new regulations. Five out of3Ofacilities
would receive additional limitations and 2 of the five facilities (6.7%) would have to persue mitigative measures.
Extrapolating these numbers tothe 111 Pnetms8montPOTVVnwmu|dmoen19Faoi|iUoo(167Y6)wmu|drecoiveaddiUone|
limitations and T'8facilities would borequired k>take mitigative measures.
To evaluate the type of mitigative measures the facilities might take to meet the standards, specifications on the two
POTWs'expected to exceed standards are listed below:
Add Pblimit TJuo/Lchronic /1A5uo/L acute
(current max 15, avg. 3.1)
Reduce Nilimit N78un/Lchronic /095acute
(current max28t avg 20
City ofLexington NCOO557800.5MGD |VVCaUO.0}
add Pblimit 9uo/Lchronic/ 21Ouo/Lacute
(current max 33, avg. 10)
add Cdlimit 1.5uo/Lchronic/ 8i1 un/Lanute
(current max �3, avg. .3)
Hamby Creek WWTP can analyze and minimize the sources of the pollutants Nseek reductions of Pb and Ni, evaluate the
possibility ofperforming aVVERfor site specificstandards, orconsider possibletreatment alternatives. The City of
Lexington can have its laboratory sample at lower PQLs for Pb so the average discharge of lead will meet the chronic limit
but potential for violations still exist. Source reductions would bethe best alternative for Lexington onaninitial approach tu
the problem.
Note that inmany cases the proposed limits determined for Pband Cdwere less than the PQLnand current sampling results
also show these metals in the wastewaters at less than the PQLs. Therefore, until sampling techniques are improved it is
not clear whether the facilities are actually meeting their calculated limitations or whether additional mitigative measures will
be necessary.
Eight ofthe 1J3minor POTVVowere reviewed and itdoes not appear that the proposed standards will have onimpact onthese
Julie- needs toevaluate major POTWs without pretreatment programs (160-97=63 facilities).

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2. Private 100%domestic WWTPs {AII Minors — Total 4861
Privately owned and County school WWTPs = 466
Plus 14 State and 6 Federal facilities
These facilities receive 100% domestic wastewater and metals are not expected to be in their wastestream.
None of these facilities are expected to be affected by the proposed standards.
Note that in many cases the proposed limits determined for Pb and Cd were less than the PQL's and current sampling results
also show these metals in the wastewaters at less than the PQLs. Therefore, until sampling techniques are improved it is
not clear whether the facilities are actually meeting their calculated limitations or whether additional mitigative measures will
be necessary.
State
14 Facilities
Odom Correctional Institute
NC0027642
NC Department of Correction
WWTP
100% Domestic < 1 MGD
NC0030180
NC Department of Correction
Blanch Youth Center WWTP
100% Domestic < 1 MGD
NC0032166
Appalachian State University
Camp Broadstone WWTP
100% Domestic < 1 MGD
NCDENR (Division of Parks &
Pilot Mountain State Park
NC0031160
Recreation)
WWTF
100% Domestic < 1 MGD
NC0029190
NC Department of Transportation
Surry County Rest Area
100% Domestic < 1 MGD
NC0028606
NC Department of Transportation
1-77 Rest Area Iredell County
100% Domestic < 1 MGD
NC0028614
NC Department of Transportation
1-77 Rest Area Yadkin County
100% Domestic < 1 MGD
Guilford Correctional Center
NC0029726
NC Department of Correction
WWTP
100% Domestic < 1 MGD
NC DENR/Division of Forest
B.H. Corpening Forestry
NC0040339
Resources
Training Center
100% Domestic < 1 MGD
NC0024805
NC Department of Transportation
Haywood County Rest Area
100% Domestic < 1 MGD
NC0027685
NC Department of Correction
Avery Correctional Center
100% Domestic < 1 MGD
Blue Ridge Youth Center
NC0073962
NC Department of Correction
WWTP
100% Domestic < 1 MGD
Betsy Jeff Penn 4H
NC0078271
NC State University
Educational Center WWTP
100% Domestic < 1 MGD
NCDENR (Division of Parks &
The Summit at Haw River
NC0046019
Recreation)
State Park WWTP
100% Domestic < 1 MGD
Federal
6 Facilities
Jackrabbit Mountain
NC0021148
USDA US Forest Service
Recreation Area WWTP
100% Domestic < 1 MGD
Lake Powhatan Recreation
NC0020478
USDA US Forest Service
Area
100% Domestic < 1 MGD
NC0072729
USDI National Park Service
Mount Pisgah WWTP
100% Domestic < 1 MGD
NC0020460
USDA US Forest Service
Sliding Rock Recreation Area
100% Domestic < 1 MGD
North Mills River Recreation
NC0020486
USDA US Forest Service
Area
100% Domestic < 1 MGD
US Army / Military Ocean Terminal -
Military Ocean Terminal /
NC0029122
Sunny Point
Sunny Point
100% Domestic < 1 MGD
VA State
1 Facility
NC0039420
Virginia DOT
Virginia DOT/1-77 Rest Area
100% Domestic < 1 MGD
DEQ-CFW 00004349

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3. Industrial WWTPs {66 Majors Total -Industrial Process & Commercial }
Privately owned = 63
Plus 3 Federal Facilities
While many of these facilities do have metals in their wastewaters, a review of 14 facilities showed no indication that the
proposed standrads would impact the facilties. However, in many cases the limits for Pb and Cd are less than the PQL's
and current sampling results also show these metals in the wastewaters at less than the PQLs. Therefore, until sampling
techniques are improved it is not clear whether the facilities are actually meeting their calculated limitations or whether
additional mitigative measures will be necessary.
All three of the Federal facilities listed below have metals in their wastewaters. The last two facilities, NCO063029 and
NC0003816, are new and we do not have much data on their wastewaters. However, it does appear that NCO003816 which
is located in Tidal waters, will violate the proposed and lower saltwater standard for lead.
Federal
3 Facilities
Department of the Army /
NCO003964
Directorate of Public Works
NCO063029
US Marine Corps - Camp Lejeune
US MCAS Cherry Point (MCALF-
NC0003816
Atlantic)
Camp Lejeune Advanced WWTP
Cherry Point WWTP
4. Industrial WWTPs [161 Minors Total - Industrial Process & Commercial]
Privately owned = 151
Plus 5 State and 5 Federal facilities
x..::..:.::,..
NCO025305
UNC-Chapel Hill
NCO027626
NC Department of Correction
NCO041386
NC Department of Commerce
NCO056065
NC Department of Transportation
NCO035904
NC Department of Correction
Federal
5 Facilities
NCO027332
Tennessee Valley Authority
NCO027359
Tennessee Valley Authority
NCO027341
Tennessee Valley Authority
NCO089061
MCB Camp Lejeune
NCO089079
MCB Camp Lejeune
UNC Cogeneration Facility
Caledonia WWTP
Wanchese Harbor Project
Industrial Process & Commercial
Industrial Process & Commercial
Industrial Process & Commercial
Marine Maintenance facility
McCain Correctional Hospital WWTP
Chatuge Hydro Plant
Hiwassee Hydro Plant
Fontana Hydro Plant
Lejeune Borrow Pits 2 and 3
Lejeune Borrow Pit 10
DEQ-CFW 00004350

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5. Groundwater remediation discharges [All Minors- Total 88]
Privately owned — 35
Plus 8State. facilities
A review of all the groundwater remediation sites shows that 15 of the 38 facilities have metals in their waterwaters. While
most ofthe sampling data for the metals are < the PQLothe proposed limitations for these facilities would be< thoPQLo
as well. Most of these facilities discharge to zero low flow streams and no hardness data is available to accurately assess
the impact ofthe new standards. It is likely that the proposed standards will affect groundwater rernediation facilities that
have Cd or Pb levels greater than detection. Since source reduction is not an alternative these faciltiies will have to provide
very costly treatment or persue a WER to potentially comply with the proposed standards.
Assume some percent will have k>porsuamitigative measures. Approx. 9ofthe facilities with metals intheir discharge
contain Cd, Pb, Cr or Ni in their wastewaters. Groundwater remediation sites are considered to have complex
wastewaters so toxicity testing is put in these permits unless aquatic tox grants permission to remove the requirement.
Thirteen of the 15 sites identified above as showing metals in their wastewaters have WET testing in their permits. Aquatic
tox allowed two facilities to remove the requirement.
Stabs 4 Facilities
NCDepartment of
N00085979 Transportation
NCDepartment uf
NC0087629 Transportation
N00088129 North Carolina State University
Rosman Maintenance Facility
Asphalt Testing Site #5
University - Lot 86
0. Water Treatment Plant discharges (3rn mr, 218
Municipal & Privately Owned =2|7
Plus 3 State owned
GmundwaterRomediation
GnoundweterRomediation
GmundwaterRomediation
There are 111 Conventional Water TreaUnonntPlants, 51 Sreonnandfao|des, 19Reverse Osmosis ormembrane
treatment facilities, and 34 WTPs using Ion exchange in their treatment process. According to the WTP Strategy,most of
these facilties are not expected to discharge Cd, Pb, Ni or Cr in their wastewaters except Ion exchange which can contain
lead.
Tmbecompleted - The 34|Efacilities will bereviewed and the impact assessed.
State 3 Facilities
NCO044423 Appalachian State University Appalachian State VVTP Water Treatment Plant
NCO074624 Western Carolina University Western Carolina University VVTP Water Treatment Plant
NCO077500 NCDepartment ofTransportation Ferry Division VVTP Water Treatment Plant
It. General Pen -nits (L74|)
The proposed regulations are not expected 0zimpact any ofthe General NPDESWastewater General Permits.
OEQ-CFVV_00004351