NC0030473_Fact Sheet_20230307

FACT SHEET FOR EXPEDITED PERMIT RENEWALS
This form must be completed by Permit Writers for all expedited permits which do not require full Fact
Sheets. Expedited permits are generally simple 100% domestics (e.g., schools, mobile home parks, etc)
that can be administratively renewed with minor changes, but can include facilities with more complex
issues (Special Conditions, 303(d) listed water, toxicity testing, instream monitoring, compliance
concerns).
Basic Information for Expedited Permit Renewals
Permit Writer / Date
Siying Chen 9/27/2022
Permit Number
NCO030473
Facility Name / Facility Class
Mill Ridge Development WWTP/ WW-2
Count / Regional Office
Watauga / WSRO
Basin Name / Sub -basin number
Watauga / 04-02-01
Receiving Stream / HUC
Watauga River / 060101030301
Stream Classification / Stream Segment
B; Tr, H W / 8- 1
Does permit need Daily Maximum NH3 limits?
Already resent
Does permit need TRC limits/language?
N/A uses UV
Does permit have toxicity testing? IWC % if so
No
Does permit have Special Conditions?
No
Does permit have instream monitoring?
Yes — Temperature and DO
Is the stream impaired on 303(d) list)?
No
Any obvious compliance concerns?
Six NODs and one NOV during the permit cycle
Changes in draft permit?
Added WWTP classification
Added instream monitoring for turbidity
Updated dissolved oxygen limit
Updated eDMR requirements
Updated outfall ma
New expiration date
9/30/2027
Comments on Draft Permit?
SELC commented on temperature footnote
Most Commonly Used Expedited Language:
• 303(d) language for Draft/Final Cover Letters: "Please note that the receiving stream is listed
as an impaired waterbody on the North Carolina 303(d) Impaired Waters List. Addressing
impaired waters is a high priority with the Division, and instream data will continue to be
evaluated. If there is noncompliance with permitted effluent limits and stream impairment can
be attributed to your facility, then mitigative measures may be required".
• TRC language for Compliance Level for Cover Letters/Effluent Sheet Footnote: "The
facility shall report all effluent TRC values reported by a NC certified laboratory including field
certified. However, effluent values below 50 µg/1 will be treated as zero for compliance
purposes."
Fact Sheet for Permit Renewal
September 2022 -- NPDES Permit NCO030473 - Page 1

Section 1. Facility Overview:
This facility is a minor facility (flow < 1 MGD) discharging 100% domestic wastewater with a design
capacity of 0.052 MGD. This WWTP utilizes the following treatment components:
• influent bar screen
• duplex grinder pumps
• flow splitter weir box
• two aeration basins
• dual -hopper bottom clarifiers
• sludge return air lifts
• skimmer return air lifts
• aerated sludge holding basin
• tertiary treatment unit consisting of dual -cell filtration system
• clear well
• filter backwash pumps
• mud well
• ultraviolet disinfection system
• continuous recording flow measuring device
• automatically activated standby power generator
Section 2. Compliance History (January 2018 — September 2022):
• One NOD for BOD5 monitoring frequency violation in June 2018.
• One NOD for permit condition violation (UV disinfection system and aeration basins) for
inspection in June 2018.
• One NOD for permit condition violation (UV disinfection system) for inspection in August 2019.
• One NOV for BOD5 limit violation in October 2019.
• Two NODs for flow limit violation in February 2020 and February 2021.
• One NOD for ammonia nitrogen limit violation in July 2022.
Section 3. Changes from previous permit to draft:
• Added facility grade in A. (1).
• Updated D.O. effluent limit in A. (1) to comply with 15A NCAC 02B.0211 (6).
• Added instream monitoring for turbidity in A. (1) to comply with 15A NCAC 02B.0211 (21).
• Updated eDMR footnote in A. (1) and language in A. (2).
• Updated outfall map.
Section 4. Comments received on draft permit:
Fact Sheet for Permit Renewal
September 2022 -- NPDES Permit NCO030473 - Page 2

SELC submitted comment on behalf of MountainTrue, the North Carolina Chapter of Trout
Unlimited, North Carolina Wildlife Federation, Watauga Riverkeeper, and the Southern
Environmental Law Center, in regards of the temperature standard in trout waters. SELC raised
concerns about not having a temperature standard in the permit, even though the permittee
expects to discharge effluent warmer than the maximum in -stream temperature allowed to
protect the receiving streams' uses as trout waters. In response to this, NPDES permitting unit
management discussed and decided that 100% domestic discharges do not qualify as a "heated
liquid" as stated in the rule, and thus no trout water temperature standards should be applied to
this permit.
Section 5. Changes from draft to final:
• Updated the sampling location for turbidity to effluent in A. (1).
Fact Sheet for Permit Renewal
September 2022 -- NPDES Permit NCO030473 - Page 3

STATE OF NORTH CAROLINA
Public Notice
WATAUGA COUNTY
North Carolina Environmen-
tal Management Commis-
sion/NPDES Unit 1617 Mail
Service Center Raleigh, NC
27699-1617
Notice of Intent to Issue a
NPDES Wastewater Permit
NCO032182 Sunset Apartment
WWTP, and NCO030473 Mill
Ridge Development WWTP The
North Carolina Environmental
Management Commission pro-
poses to issue a NPDES waste-
water discharge permit to the
RESOURCES
person(s) listed below. Written
comments regarding the pro-
1617 Mail Service Ctr
posed permit will be accepted
until 30 days after the publish
Raleigh, NC 276991617
date of this notice. The Director
of the INC Division of Water Re -
AFFIDAVIT OF PUBLICATION
sources (DWR) may hold a pub-
lic hearing should there be a
significant degree of public inter -
Before the undersigned, a Notary Public of said County and State, duly commissioned,
est. Please mail comments
and/or information requests to
qua tfie d autho ' d to administer oaths, personally appeared
DWR at the above address. In-
terested persons may visit the
byaw
who being first duly sworn, deposes and says: that
DWR at 512 N. Salisbury Street,
Raleigh, NC 27604 to review the
he (she) is an employee of ADAMS PUBLISHING GROUP, LLC, engaged in the publication
information on file. Additional in-
formation on NPDES permits
of a newspaper known as Watauga Democrat, published in the city of BOONE in said
and this notice may be found on
County and State, that he (she) is authorized to make this affidavit and sworn statement; that the
our websit:
http://deq.nc.gov/ab ut/divi-
notice or other legal advertisement, a true copy of which is attached hereto, was published in
si ons/water-res ou rces/water-
resources-permits/wastewate
Watauga Democrat a newspaper meetin all of the requirements and qualifications of Section
gg Q q
r - branch / n p i e s -
wastewater/public-notices, or
I-597 of the General Statues of North Carolina on the following dates:
P99)7601Gla-
cierroperte(2158
Heights Drive Ste 107) applied
to renew NPDES permit
NC0032182, NCO030473
NCG032182 for the Sunset
Apartments WWTP, 1217 Old
10/26/22
Bristol Road, discharging
treated, 100% domestic, waste-
water into Brushy Fork,
Watauga River Basin. Currently,
total residual chlorine (TRC),
dissolved oxygen (DO), ammo-
nia -nitrogen and fecal coliform
are water -quality limited. Thi&,
discharge may affect future
wasteload allocations in this por-
tion of the watershed. Mill Ridge
Property Owners' Association
(229 Clubhouse Drive, Banner
Elk) applied to renew NPDES
permit NCO030473 for their Mill
Ridge
Development WWTP,
discharging treated domestic
wastewater to the Watauga
River, Watauga River Basin.
Currently Biochemical Oxygen
Demand (BOD), Total Sus-
pended Solids (TSS), Fecal Co-
liform, Ammonia Nitrogen
i'k , I
',�
and
S' r
?;'i'w
Dissolved Oxygen (DO) are
r
water quality limited. This dis-
charge may affect future waste -
load allocations in this portion of ;
P.O. BOX 1815, BOONE, NC 28607
the Watauga River.
828-264-6397
• ��'' pTARy ��
z •' AU B LAG '•�
/ A •CO��``/
�1rttlt 0 My
This 27th day of October, 2022
Signature of person making affidavit
to and subscribed before me on this 27th day of October, 2022
Notary Public
issi on expires: O �,( Pt-

NH3/TRC WLA Calculations
Facility: Mill Ridge Development WWTP
PermitNo. NC0030473
Prepared By: Siying Chen
Enter Design Flow (MGD): 0.052
Enter s7Q10 (cfs): 2.2
Enter w7Q10 cfs : 3.3
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/1)
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/1)
s7Q10 (CFS)
2.2
s7Q10 (CFS)
2.2
DESIGN FLOW (MGD)
0.052
DESIGN FLOW (MGD)
0.052
DESIGN FLOW (CFS)
0.0806
DESIGN FLOW (CFS)
0.0806
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
Upstream Bkgd (ug/1)
0
Upstream Bkgd (mg/1)
0.22
IWC (%)
3.53
IWC (%)
3.53
Allowable Conc. (ug/1)
481
Allowable Conc. (mg/1)
22.3
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/1)
Fecal Coliform
w7Q10 (CFS)
3.3
Monthly Average Limit:
200/100ml DESIGN FLOW (MGD)
0.052
(If DF >331; Monitor)
DESIGN FLOW (CFS)
0.0806
(If DF<331; Limit)
STREAM STD (MG/L)
1.8
Dilution Factor (DF)
28.30 Upstream Bkgd (mg/1)
0.22
IWC (%)
2.38
Allowable Conc. (mg/1)
66.5
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/l, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals)
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis)
If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni)

MONITORING REPORT(MR) VIOLATIONS for:
Report Date:
09/27/22 Page
1 of 1
Permit: nc0030473
MRS Betweel 1 - 2018 and 9 - 2022
Region:
%
Violation Category:%
Program Category:
Facility Name: %
Param Nam(%
County:
%
Subbasin: %
Violation Action: %
Major Minor: %
PERMIT: NCO030473
FACILITY: Mill Ridge Property Owners Association -Mill Ridge
COUNTY: Watauga
REGION: Winston-Salem
Development WWTP
Limit Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT OUTFALL
LOCATION PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
10-2019 001
Effluent BOD, 5-Day (20 Deg. C) -
10/30/19
Weekly
mg/I
9
10.9
21.1
Daily Maximum
Proceed to NOV
Concentration
Exceeded
02 - 2020 001
Effluent Flow, in conduit or thru
02/29/20
Continuous
mgd
0.052
0.055
5.8
Monthly Average
Proceed to NOD
treatment plant
Exceeded
02 - 2021 001
Effluent Flow, in conduit or thru
02/28/21
Continuous
mgd
0.052
0.0606
16.5
Monthly Average
Proceed to NOD
treatment plant
Exceeded
07-2022 001
Effluent Nitrogen, Ammonia Total (as
07/31/22
Weekly
mg/I
3.9
4.07
4.4
Monthly Average
Proceed to NOD
N) - Concentration
Exceeded
Monitoring Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT OUTFALL
LOCATION PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
06-2018 001
Effluent BOD, 5-Day (20 Deg. C) -
06/02/18
Weekly
mg/I
Frequency Violation
Proceed to NOD
Concentration
Reporting Violation
MONITORING
VIOLATION
UNIT OF
CALCULATED
%
REPORT OUTFALL
LOCATION PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
09-2019
10/31/19
Late/Missing DMR
None
10-2019
12/01/19
Late/Missing DMR
Proceed to NOV
11 -2019
12/31/19
Late/Missing DMR
Proceed to NOV
12-2019
01/31/20
Late/Missing DMR
None

SOUTHERN 48 Patton Avenue, Suite 304 Telephone [phone]
ENVIRONMENTAL Asheville, NC 28801 Facsimile 828-258-2024
LAW
CENTER
November 22, 2022
Via Email
Richard Rogers
N.C. Dept. of Environmental Quality
Division of Water Resources
Water Quality Permitting Section
1617 Mail Service Center
Raleigh, NC 27699-1617
[e-mail]
Re: Application of the trout waters temperature standard in draft NPDES Permit
Nos. NC0038401, NC0030473, NC0035149, NC0049174, NC0036692, NC0067318,
and NC0059200.
Dear Mr. Rogers:
Please accept the following comments submitted on behalf of MountainTrue, North
Carolina Chapter of Trout Unlimited, North Carolina Wildlife Federation, Watauga Riverkeeper,
and the Southern Environmental Law Center related to the North Carolina Department of
Environmental Quality's ("DEQ") failure to apply the trout waters temperature standard in seven
recently noticed draft National Pollutant Discharge Elimination System ("NPDES") permits:
Laurel Seasons, Permit No. NCO038041; Mill Ridge Development, Permit No. NC0030473;
Seven Devils Resort, Permit No. NC0035149; Smoketree Lodge, Permit No. NC0049174;
Skyline Lodge & Village, Permit No. NC0036692; Nantahala School, Permit No. NC0067318;
and Trillium Links & Village, Permit No. NC0059200. All seven permits would authorize
discharges into designated trout waters.' Proper application of the trout waters temperature
standard is critical to protecting trout populations in North Carolina.
The permits discussed in this letter contain no temperature standard whatsoever for the
receiving trout waters, even though permittees expect to discharge effluent warmer than the
maximum in -stream temperature allowed to protect the receiving streams' uses as trout waters.
This does not reflect DEQ's legal obligation to protect trout waters' designated use by ensuring
discharges do not raise water temperature above certain limits or by too much. Inclusion of the
trout waters temperature standard is especially important because DEQ has used the wrong water
quality standard for temperature —the general mountain waters standard of 290C instead of the
1 Permit No. NC0038041 discharges into Laurel Fork, which is a Class C Trout water in the Watauga River Basin;
Permit Nos. NC0030473 and NC0049174 discharge into a segment of the Watauga River, which is designated as a
Class B, High Quality Waters, Trout water; Permit No. NC0035149 discharges into a separate section of the
Watauga River that is designated as a Class C Trout water; Permit No. NC0059200 discharges to an unnamed
tributary of Lake Glenville with a water quality classification of WS-III, High Quality Waters, Class B, Trout
waters; Permit No. NC0036692 discharges, into Big Creek which has a classification of WS-11, High Quality
Waters, Trout water; Permit No. NC0067318 discharges into Partridge Creek, which is a Class C Trout water.
Charlottesville Chapel Hill Atlanta Asheville Birmingham Charleston Nashville Richmond Washington, DC

trout waters standard of 20°C—when preparing its list of impaired waters under Section 303(d)
of the Clean Water Act for several of the receiving streams at issue here.2 We ask that DEQ
correct these deficiencies by adding limits to each permit sufficient to ensure compliance with
the Trout waters temperatures standard of 20°C.
I. Trout require cold, clean water to survive.
Keeping water temperature in designated trout waters below certain thresholds is
critically important because North Carolina's three species of trout —brook trout, brown trout,
and rainbow trout —require cold, clean, oxygen -rich water to survive and thrive. Water
temperature for these trout generally needs to be kept below 20°C (68°F).3 Unfortunately, past
and ongoing land management practices threaten trout habitats, including by increasing stream
temperatures. As we explained in our comments on North Carolina's draft 2022 Clean Water Act
§ 303(d) list, numerous trout streams routinely exceed safe water temperatures for trout.4
This problem is being exacerbated by climate change. By 2060, western North Carolina
is predicted to see 10-20 more days each year with air temperatures above 35°C (95°F),
increasing the potential for water temperatures to rise above 21.1 °C (70°F)levels that can be
lethal to trout.5 This combination of past habitat loss, ongoing poor land management practices,
and climate change poses an existential threat to many western North Carolina trout populations.
Declines in trout populations —driven by increasing stream temperatures or otherwise —
will hurt local economies. The total economic benefit of trout fishing in North Carolina is
estimated at $383.3 million annually, supporting nearly 3,600 jobs.6 If trout habitats are further
reduced, these economic benefits will be at risk. Overall, stream temperatures in North Carolina
are increasing, and this trajectory is predicted to continue under a changing climate. To protect
trout populations and the businesses that rely on them, North Carolina must take proactive steps
to ensure trout waters remain sufficiently cold.
2 See, e.g., North Carolina 2022 Integrated Report at 1035 (assessing compliance with a temperature standard of
290C in sections of the Watauga River designated as Trout waters), available at
https://edocs.deq nc.gov/WaterResources/DocView.aspx?dbid=0&id=2361713&cr=1.
3 Trout Species of North Carolina, Fly Fishing NC (accessed Sept. 26, 2022), https://www.flyfishingnc.com/trout-
species-of-north-carolina.
a S. Envtl. L. Ctr., Comments on North Carolina's Draft 2022 § 303(d) List (Feb. 28, 2022), Attachment 1.
s Emma Johnson, Climate Change Challenges Trout Industry in North Carolina, Carolina Public Press (Feb. 17,
2021), https://carolinapublicpress.org/42527/climate-change-challenges-trout-industry-in-north-carolina/. See also
Kunkel, K.E., et al., 2020: North Carolina Climate Science Report, available at
https://ncics.org/wpcontent/uploads/2020/ 10/NC_Climate_Science_Report_FullReport_Final_revised_September20
20.pdf.
6 N.C. Wildlife Res. Comm'n, Mountain Trout Fishing: Economic Impacts on and Contributions to North Carolina's
Economy (2015), available at https://www ncwildlife.org/Portals/0/Fishing/documents/Economic-Impacts-Trout-
Fishing.pdf.
N

II. North Carolina promulgated a temperature water quality standard to protect
trout.
Recognizing that trout require cold water, North Carolina exercised its authority under
the Clean Water Act to develop a temperature water quality standard designed to keep trout
streams cold. The Clean Water Act requires states to designate "uses" of waterbodies and
promulgate standards to protect those uses. See 33 U.S.C. § 1313; 40 C.F.R. § 131.10; N.C. Gen.
Stat. § 143-214.1. All waterbodies in North Carolina are subject to a temperature standard to
protect their associated designated use. 15A N.C. Admin. Code 2B.0211(18). Some North
Carolina waterbodies have been assigned a "trout waters" use. See 15A N.C. Admin. Code
2B.0301(b)(3) (explaining trout waters classification). The temperature standard —for both trout
waters and non -trout waters —provides that water temperature is:
not to exceed 2.8 degrees C (5.04 degrees F) above the natural water temperature,
and in no case to exceed 29 degrees C (84.2 degrees F) for mountain and upper
piedmont waters and 32 degrees C (89.6 degrees F) for lower piedmont and coastal
plain Waters; the temperature for trout waters shall not be increased by more than
.5 degrees C (0.9 degrees F) due to the discharge of heated liquids, but in no case
to exceed 20 degrees C (68 degrees F).
15A N.C. Admin. Code 2B.0211(18).
The standard has two parts —a delta limit and an absolute limit. In non -trout waters, the
delta limit prohibits an increase attributable to a discharger of more than 2.8°C above the natural
water temperature. The absolute limit provides that temperature shall "in no case" exceed 29°C
in mountain and upper piedmont waters and 32°C in lower piedmont and coastal plain waters
regardless of the presence of permitted dischargers.
The trout waters standard follows this same structure: Stream temperature may not be
increased "by more than .5 degrees C ... due to the discharge of heated liquids" but "in no case"
shall stream temperature exceed 20°C. This makes sense because keeping trout waters below
20°C—regardless of the presence of permitted dischargers —is critical to sustaining healthy trout
populations.
North Carolina's temperature standard, including for trout waters, is implemented in part
through NPDES permits that regulate point source discharges by setting limits and monitoring
requirements for a variety of water quality characteristics. 33 U.S.C. § 1342(a). State agencies
with delegated authority to administer the NPDES program, such as DEQ, are responsible for
ensuring NPDES permits identify and apply the correct water quality limits for the waterbody
into which the permittee will be discharging effluent.
3

III. DEQ failed to apply trout water temperature standards in draft NPDES permits
currently out for comment.
On Sept. 30, 2022, we filed comments noting DEQ's inconsistent application of
temperature standards in five draft NPDES permits authorizing discharges into trout waters.7 In
those comments, we applauded DEQ's correct application of the trout waters temperature
standard in three of those permits but explained that it incorrectly applied the same standard in
the other two. One of the draft permits that incorrectly applied the trout waters temperature
standard has now been finalized, and we commend DEQ for rectifying its error and correctly
applying the trout waters temperatures standard in the final permit. Specifically, Final Permit No.
0006564 clarifies that stream temperature -increasing discharges are prohibited when the
background temperature of a receiving trout stream exceeds 20°C. See generally 15A N.C.
Admin. Code 2B.0211(18) (trout streams are "in no case to exceed 20 degrees C (68 degrees
F).").
Unfortunately, DEQ continues its inconsistent (and incorrect) application of the trout
waters temperature standard in the seven NPDES permits at issue in this letter: None of them
contains any limit to ensure compliance with the trout water temperature standard.$ For the
reasons discussed above, applying and enforcing these temperature standards is not optional.
Doing so is critical to sustaining healthy trout populations.
As DEQ has recognized in other permits, if the background temperature of a receiving
trout stream is already greater than 20°C, discharges causing further stream temperature increases
will be unlawful. As noted above, DEQ corrected its approach in Final Permit No. 0006564 by
prohibiting discharges that increase stream temperature if the receiving trout stream already
exceeds 20°C.9 In Permit Nos. NC0030325, NC0042358, and NCO062961, DEQ correctly
applied the trout waters temperature standard in the first instance by explaining in those permits
that "[i]f the stream temperature exceeds 20 degrees C due to natural background conditions, the
effluent cannot cause any increase in instream water temperature."10 DEQ must include that
same limit in the permits at issue here: If the receiving trout stream temperature already exceeds
20°C, the permittee may not lawfully discharge effluent that will cause further increases in
stream temperature.
DEQ must also include a limit ensuring that discharges will not cause stream temperature
to increase by more than 0.50C when the stream's background temperature is less than 20°C. This
I S. Envt'l L. Ctr., Comment Letter on Draft NPDES Permit Nos. NCO030325 (Buffalo Meadows WWTP),
NCO042358 (Adams Apple Condominiums WWTP), NCO062961 (Tynecastle WWTP), NC0006564 (Baxter
Healthcare Corp. WWTP), and NCO059421 (Sapphire Lake WWTP No. 1) (Sept. 30, 2022), Attachment 2.
a In recent draft permits for discharges into trout waters, temperature standards have been included in footnotes
below the table containing proposed effluent limitations. Having reviewed those tables and footnotes in each of the
draft permits at issue here, found on page 3 of each draft permit, we found no mention of a temperature limit.
9 Compare Draft NPDES Permit No. 0006564 (Baxter Healthcare Corp. WWTP) (Aug. 29, 2022), at 4, with NPDES
Permit No. 0006564 (finalized Oct. 17, 2022), at 4 (clarifying that permittee could not increase the background
temperature of the receiving stream under any circumstances if the background temperature exceeded 20°C).
10 See Draft Permit NC0030325, at 3; Draft Permit NC0042358, at 3; Draft Permit NC0062961, at 3.
2

is because the trout waters temperature standard prohibits discharges that increase stream
temperature by "more than .5 degrees C (0.9 degrees F) due to the discharge of heated liquids."
15A N.C. Admin. Code 2B.0211(18). In combination, the trout waters temperature standard
prohibits all discharges that cause stream temperature to increase over 20°C but allows increases
of 0.5°C so long as the receiving stream remains below 20°C.
Application of the trout water temperature standard is especially important here because
five of the seven permit applications report maximum summer discharge temperatures higher
than 20°C, the upper limit for trout water temperatures." In other words, discharges from these
three facilities may risk causing or contributing to violations of the in -stream trout waters
temperature standard. The other two permit renewal applications, NCO059200 and NC0035149,
do not report the anticipated effluent temperatures.12 DEQ should require all applicants to report
expected effluent temperatures. Nevertheless, based on the information before DEQ, inclusion of
a temperature standard is justified to ensure the permittees do not violate the trout waters
temperature standard.
To be clear, DEQ has no authority to issue NPDES permits that do not ensure compliance
with water quality standards which includes the trout waters temperature standard. See 33 U.S.C.
§ 13 11 (b)(1)(C) (requiring NPDES permits to include limitations "necessary to meet water
quality standards"); 40 C.F.R. § 122.44(d)(1).
As noted above, incorporating the trout waters temperature standard into all seven
permits is also important because DEQ has failed to correctly apply this standard to the receiving
waterbodies when preparing its Clean Water Act Section 303(d) list. Section 303(d) requires
states to identify waterbodies that are not meeting water quality standards, investigate the reasons
for noncompliance, and develop a plan to remediate those problems. For several years, DEQ has
wrongly applied the water quality temperature standard for mountain waters (29°C) to the
Watauga River and other designated trout waters protected by the 20°C standard. 13 The
combination of these two errors —failure to include temperature standards in NPDES permits and
11 See Application No. NCO038041 for NPDES Permit to Discharge Wastewater, Laurel Seasons WWTP (rec'd
Mar. 22, 2022), at 13 (showing a maximum daily summer effluent temperature of 25°C); Application No.
NCO030473 for NPDES Permit to Discharge Wastewater, Mill Ridge WWTP (rec'd Mar. 23, 2022), at 13 (showing
a maximum daily summer effluent temperature of 22°C); Application No. NCO049174 for NPDES Permit to
Discharge Wastewater, Smoketree Lodge WWTP (rec'd Mar. 22, 2022), at 13 (showing a maximum daily summer
effluent temperature of 24°C); Application No. NCO067318 for NPDES Permit to Discharge Wastewater, Nantahala
School WWTP (rec'd May 27, 2022), at 11 (showing a maximum summer effluent temperature of 21°C);
Application No. NCO036692 for NPDES Permit to Discharge Wastewater, Skyline Lodge & Village WWTP (rec'd
July 7, 2022), at 11 (showing a maximum winter effluent temperature of 210C). We assume the Skyline Lodge
application mistakenly swapped maximum winter and summer values, as the maximum summer temperature is
listed as just 18.4°C, despite the average summer temperature being estimated at 19. VC. DEQ should clarify these
parameters with the applicant prior to finalizing the permit.
12 The application for Permit No. NCO035149 lists all temperature parameters as "N/A." See Application No.
NCO035149 for NPDES Permit to Discharge Wastewater, Seven Devils Resort WWTP (rec'd Mar. 18, 2022), at 13.
The application for Permit No. NCO059200 does not disclose any effluent characteristics whatsoever. See
Application No. NCO059200 for NPDES Permit to Discharge Wastewater, Trillium Links & Village WWTP (rec'd
June 13, 2022).
13 See supra note 4.
5

failure to assess compliance with the correct temperature standard in the Section 303(d)
context —risks jeopardizing trout populations.
In summary, before finalizing these permits, DEQ must add language implementing the
water quality temperature standard for trout waters. The most straightforward approach is to
include language DEQ has already properly applied to other trout water discharge permits:
"The instream temperature shall not be increased by more than 0.5 degrees C (0.9
degrees F) due to the discharge of heated liquids, but in no case to exceed 20
degrees C (68 degrees F). If the stream temperature exceeds 20 degrees C due to
natural background conditions, the effluent cannot cause any increase in instream
water temperature."
This expression of the temperature standard, found in the most recent draft NPDES
permit for the Buffalo Meadows WWTP, NPDES Permit No. NCO030325 (and others), correctly
requires permittees to cause no further increase in temperature when stream temperature already
exceeds trout water standards.
IV. Conclusion
North Carolina has some of the best and most at -risk trout habitat in the eastern United
States. Ensuring viable trout populations persist in the future requires keeping trout streams clean
and cold. To that end, DEQ must forthrightly apply the trout waters temperature standard in
NPDES permits NC0038401, NC0030473, NC0035149, NC0049174, NC0067318, NC0036692,
and NC0059200.
Please notify Henry Gargan at hgargankselcnc.org or 828-258-2023 when DEQ issues
final versions of the above permits. We remain available as always to discuss any of these
concerns.
31
Sincerely,
Henry Gargan
Associate Attorney
Southern Environmental Law Center
hgargankselcnc.org
Patrick Hunter
Managing Attorney
Southern Environmental Law Center

cc: Charles Weaver ([e-mail])
Siying (Sylvia) Chen ([e-mail])

Attachment 1
Comments on NC 2022 draft
303(d) list

SOUTHERN 48 Patton Avenue, Suite 304 Telephone [phone]
ENVIRONMENTAL Asheville, NC 28801 Facsimile 828-258-2024
LAW
CENTER
February 28, 2022
Via First Class U.S. Mail and Electronic Mail
Cam McNutt
N.C. Department of Environmental Quality
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1167
TMDL3 03 dC omments nncdenr. gov
Re: Comments on North Carolina's Draft 2022 003(d) List
Dear Mr. McNutt:
On behalf of North Carolina Wildlife Federation, North Carolina Trout Unlimited, and
MountainTrue we are submitting comments on North Carolina's draft 2022 § 303(d) list of
impaired waters. The proper identification of impaired waters is essential to improving the
quality and preserving the best use of the State's waters. This is critical for people who rely on
these waters for their economic livelihoods, for spiritual renewal, and for recreation. Identifying
impaired waters is also critical for species that depend on clean water, like Southern Appalachian
brook trout. For too long, the Department of Environmental Quality ("DEQ") has ignored
exceedances of the temperature standard for trout streams when preparing its 303(d) list. As a
result, the causes of these exceedances are never assessed and remediated through preparation of
a Total Maximum Daily Load ("TMDL")—all to the detriment of anglers, fishing guides, and,
most importantly, trout and other species that rely on cold, clean water. Climate change will only
exacerbate this problem. It is past time for DEQ to begin listing waters on its 303(d) list that are
exceeding the temperature standard for trout waters, consistent with DEQ's listing
methodology.1
DEQ should also explain how it applies narrative water quality standards when preparing
its 303(d) list and fix longstanding problems with its listing and delisting methodology and water
quality monitoring program.
'See N.C. Dep't of Envd. Quality, 2022 303(d) Listing and Delisting Methodology (May 13, 2021). Using this
methodology, DEQ will list a stream as impaired if (1) sample size is greater than nine and (2) there is a greater than
10% exceedance rate with at least 90% statistical confidence, or there is a greater than 10% exceedance rate with
less than 90% confidence and there are more than three excursions with 90% confidence in newer data that have not
been previously assessed. Id. at 4. For purposes of the 2022 303(d) list, "newer data" consists of data collected in
2019 and 2020.
Charlottesville Chapel Hill Atlanta Asheville Birmingham Charleston Nashville Richmond Washington, DC

I. The 303(d) listing process is critical to protecting the integrity of North
Carolina's waters.
Congress passed the Clean Water Act ("CWA") in 1972 to "to restore and maintain the
chemical, physical, and biological integrity of the Nation's waters." 33 U.S.C. § 1251(a). To that
end, Congress charged states with identifying "designated uses" for each jurisdictional
waterbody within its boundaries. 33 U.S.C. § 1313(d); 40 C.F.R. § 131.10. States then set
"criteria necessary to protect the uses" as water quality standards. 40 C.F.R. § 130.3.2 Water
quality standards "should, wherever attainable, provide water quality for the protection and
propagation of fish, shellfish and wildlife and for recreation in and on the water and take into
consideration their use and value for public water supplies." Id. "Such standards serve the dual
purposes of establishing the water quality goals for a specific water body and serving as the
regulatory basis for establishment of water quality -based treatment controls and strategies
beyond the technology -based level of treatment required by sections 301(b) and 306 of the
[CWA]." Id. States "are required to set water quality standards for all waters within their
boundaries regardless of the sources of the pollution entering the waters." Pronsolino v. Nastri,
291 F.3d 1123, 1127 (9th Cir. 2002). In other words, water quality standards are set without
regard to existing or future sources of pollution.
Water quality standards must be approved by the Environmental Protection Agency
("EPA") and are reviewed at least every three years. See 33 U.S.C. § 1313(a)—(c). If a new or
revised state -promulgated water quality standard is insufficient to meet the purposes of the
CWA, EPA must promulgate a sufficient water quality standard in its stead. 33 U.S.C. §
1313(c)(3).
Every two years, states must identify "water quality limited segments" of jurisdictional
waters within their borders and list them on their CWA § 303(d) list. See generally 33 U.S.C. §
1313(d). A "water quality limited segment" is any "segment where it is known that water quality
does not meet applicable water quality standards, and/or is not expected to meet applicable water
quality standards." 40 C.F.R. § 130.20). More specifically, states must identify water quality
limited segments for which:
(i) Technology -based effluent limitations required by [the CWA];
(ii) More stringent effluent limitations (including prohibitions) required by
either State or local authority preserved by section 510 of the Act, or
Federal authority (law, regulation, or treaty); and
(iii) Other pollution control requirements (e.g., best management practices)
required by local, State, or Federal authority are not stringent enough to
implement any water quality standards applicable to such waters.
40 C.F.R. § 130.7(b) (emphasis added). "Water quality standard," as used here, includes
"numeric criteria, narrative criteria, waterbody uses, and antidegradation requirements." Id. §
130.7(b)(3). States must also list water quality limited segments "for which controls on thermal
z North Carolina implements this procedure by classifying waterbodies and assigning water quality standards for
each classification. See N.C. Gen. Stat. § 143-214.1; 15A N.C. Admin. Code 213.0101, .0301.

discharges under section 301 [of the CWA] or State or local requirements are not stringent
enough to assure protection and propagation of a balanced indigenous population of shellfish,
fish and wildlife." Id. § 130.7(b)(2).
Once prepared, states submit draft 303(d) lists to EPA for approval. Id. § 130.7(d). EPA
may not approve a list that does not meet "the requirements of [40 C.F.R.] § 130.7(b)." Id. §
130.7(d)(2). If EPA disapproves a list, it must add wrongfully omitted water quality limited
segments back to the state's 303(d) list. Id.
States are obligated to "establish TMDLs for the water quality limited segments
identified" on that state's final 303(d) list. Id. C.F.R. § 130.7(c)(1). Total Maximum Daily Loads
are developed based on a waterbody's "loading capacity" which is the "greatest amount of
loading that a water can receive without violating water quality standards." 40 C.F.R. § 130.2(f).
A "load" is an "amount of matter or thermal energy that is introduced into a receiving water" and
"loading" is the act of introducing that matter or thermal energy into a receiving water. Id. §
130.2(e). "Loading may be either man -caused (pollutant loading) or natural (natural background
loading)." Id.
Once the TMDL determines the "loading capacity" of a waterbody, it allocates allowable
levels of pollutant discharges among nonpoint and point sources3 via load allocations4 and
wasteload allocations,5 respectively. The TMDL is the sum of the load allocations (including
background conditions) and wasteload allocations. It thus protects the overall health of
waterbodies by ensuring that point and nonpoint discharges are reduced to ensure compliance
with water quality standards.
TMDLs are also subject to EPA approval. Id. § 130.7(d). Once an approved TMDL is in
place, a waterbody no longer must be listed as "impaired" on the 303(d) list. In summary,
inclusion on the 303(d) list is the first step toward assessing water quality -limited segments and
determining load allocations and wasteload allocations through the TMDL process to ensure
water quality standards are not violated and designated uses of waterbodies are protected.
II. North Carolina's 303(d) list wrongfully excludes stream segments that violate
the temperature standard applicable to classified trout waters.
For decades, North Carolina has had a temperature water quality standard specific to
classified trout streams. Compliance with the standard is critical for keeping these streams cool
enough to sustain trout populations. Many trout waters are increasingly exceeding this
' A "point source" is "any discernible, confined and discrete conveyance, including but not limited to any pipe,
ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, concentrated animal feeding operation,
or vessel or other floating craft, from which pollutants are or may be discharged." 33 U.S.C. § 1362(14). Point
source discharges are regulated by National Pollutant Discharge Elimination System permits. Nonpoint source
pollution is pollution that enters waterbodies but not via "discernible, confined, discrete conveyances."
4 A "load allocation" is the "portion of a receiving water's loading capacity that is attributed either to one of its
existing or future nonpoint sources of pollution or to natural background sources." 40 C.F.R. § 130.2(g).
5 A "wasteload allocation" is the "portion of a receiving water's loading capacity that is allocated to one of its
existing or future point sources of pollution." 40 C.F.R. § 130.2(g).

temperature standard, threatening trout viability. Nevertheless, DEQ has consistently refused to
list these impaired streams on its 303(d) list by a combination of (1) interpreting the trout waters
temperature standard to only apply when thermal point sources discharge into the relevant stream
segment, but then (2) failing to investigate the presence of thermal point source dischargers. This
interpretation is contrary to the plain wording of the trout waters temperature standard, and
inconsistent with the requirements of the CWA and how DEQ applies the standard outside of the
303(d) context. Just last year, DEQ initiated an enforcement action in North Carolina Superior
Court alleging violations of the trout waters temperature standard even when no thermal point
source discharges were present. DEQ correctly applied the trout waters temperature standard in
that instance —the same standard it applies when preparing its 303(d) list.
A. North Carolina trout depend upon cool, clean water.
North Carolina is home to three types of trout: brook trout, rainbow trout, and brown
trout. Only brook trout are native to the state. Recent studies "suggest that the native brook trout
found in the southern Appalachians, including the mountains of western North Carolina,
represent a unique strain called Southern Appalachian brook trout."6 These trout "have endured
in North Carolina since the last ice age more than 10,000 years ago."7 "North Carolina mountain
streams once teemed with Southern Appalachian brook trout" but 19t'- and 20t'-century logging
practices decimated populations.8 "Extensive erosion and siltation from land disturbing activities
limited spawning success by smothering eggs and restricting their oxygen supply, and streams
that historically supported coldwater fishes were warmed due to lost canopy cover."9 Stocking of
rainbow, brown, and northern -strain brook trout also began around 1900.10 These introduced
species often outcompeted native brook trout, leading to further declines." Today, "the future of
the wild brook trout is of concern, and since 1900, the brook trout range is thought to have
declined by about 80 percent."12
Brook trout, brown trout, and rainbow trout require cold, clean, oxygen -rich water to
survive and thrive. Past and ongoing land management practices continue to threaten trout
habitats and these threats are exacerbated by climate change. By 2060, western North Carolina is
predicted to see 10-20 more days each year with air temperatures above 35' C (95' F), increasing
the chances that water temperatures will rise above 21.1' C (70' F)—levels that can be lethal to
6 N.C. Wildlife Res. Comm'n, Brook Trout: North Carolina Wildlife Profiles,
https://www.ncwildlife.org/Portals/O/Fishing/documents/BrookTrout.pdf, Attach. 1.
7 Doug Besler, Return of the Native?,
https://www.ncwildlife.org/portals/O/Learning/documents/WINC/Sample_07/sample_Apri107.pdf, Attach. 2.
a Supra note 6.
9 Id.
io Id.
11 Id.
12 Id.
al

trout. 13 This combination of past habitat loss, ongoing poor land management practices, and
climate change poses an existential threat to many western North Carolina trout populations.
Declines in trout populations will also hurt local economies. The total economic benefit
of trout fishing in North Carolina is estimated at $383.3 million annually, supporting nearly
3,600 jobs.14 If trout habitats are further reduced, these economic benefits will be at risk.
B. North Carolina has specific temperature standards for trout waters.
Consistent with its obligations under the CWA, DEQ has classified some mountain
streams and lakes as "trout waters." See 15A N.C. Admin. Code 2B.0202(55) (defining "trout
waters"). To protect that condition, DEQ assigned trout waters a temperature standard: Their
temperature "shall not be increased by more than 0.5 degrees C (0.9 degrees F) due to the
discharge of heated liquids, but in no case to exceed 20 degrees C (68 degrees F)." 15A N.C.
Admin. Code 2B .0211(18); see also id. 2B.0301 (explaining that the "water quality standards
applicable to each classification assigned are those established in the rules of Section .0200 of
this Subchapter.").15 For purposes of compiling its 303(d) list, DEQ considers waters to be
impaired when state water quality criteria —including temperature —are exceeded in more than
10% of samples with greater than or equal to 90% statistical confidence.16 Waterbodies that meet
this numeric criterion must be listed;17 those that do not may still need to be listed if certain other
conditions are met.18 DEQ's application of these requirements in compiling its draft 2022 303(d)
report falls short for at least two reasons. First, it fails to apply the trout waters temperature
standard to multiple classified trout waters. Second, it refuses to list trout waters as impaired
even when the underlying data demonstrates impairment using DEQ's listing methodology.
" Emma Johnson, Climate Change Challenges Trout Industry in North Carolina, Carolina Public Press (Feb. 17,
2021), https://carolinapublicpress.org/42527/climate-change-challenges-trout-industry-in-north-carolina/ Attach. 3;
see also Kunkel, K.E., et al., 2020: North Carolina Climate Science Report, https://ncics.org/wp-
content/uploads/2020/10/NC_Climate_Science_Report_FullReport_Final_ revised Septcmber202O.pdf, Attach. 4.
14 N.C. Wildlife Res. Comm'n, Mountain Trout Fishing: Economic Impacts on and Contributions to North
Carolina's Economy at iv (2015), https://www ncwildlife.org/Portals/O/Fishing/documents/Mountain%2OTrout%
20Fishing%2OEconomic%20Impacts%20on%20and%2OContributions%20to%2ONorth%20Carolinas%2OEconomy.
pdf, Attach. 5.
15 In waters that are not classified trout waters, stream temperatures are "not to exceed 2.8 degrees C (5.04 degrees
F) above the natural water temperature, and in no case to exceed 29 degrees C (84.2 degrees F) for mountain and
upper piedmont waters and 32 degrees C (89.6 degrees F) for lower piedmont and coastal plain Waters." 15A N.C.
Admin. Code 2B .0211(18).
i6 See supra note 1.
17 North Carolina carves out small exceptions for dissolved oxygen and pH in swamp waters if exceedances are due
to natural conditions. Id. at 5.
18 For example, pollutants with exceedance levels above 10% with less than 90% statistical confidence must still be
listed if at least three newer samples exceeded criteria with at least 90% statistical confidence. Id. at 3-4.
5

C. DEQ is applying the wrong temperature standard to numerous trout streams.
DEQ recognizes a 20' C limit for some trout waters in its draft 2022 303(d) list,19 but it
omits this criterion for at least forty other classified trout water segments and instead applies the
temperature standard for non -trout mountain and upper piedmont streams. 20 This is the wrong
standard. Classified trout waters incorrectly assessed for compliance with the 29' C standard
applicable in mountain and upper piedmont streams generally -but not the correct 20' C trout
waters limit -include: Broad River (12498),21 Cedar Creek (12537), First Broad River (12758),
Catawba River (317), Wilson Creek (1034), French Broad River (10925), Davidson River
(11278), Avery Creek (11290), Mills River (11421), Pigeon River (10565), Allen Creek (10607),
Jonathans Creek (10684), Cataloochee Creek (10798), North Toe River (11971 and 11974),
South Toe River (12079), Cane River (12270), Valley River (3278), Cullasaja River (6497),
Nantahala River (7235 and 7236), Tuckaseegee River (8610 and 8611), Board Cove Branch
(8906), Wolf Creek (9098), Little Tennessee River (5606 and 5607), Flattop Branch (122),
Norris Branch (204), Buffalo Creek (233), Brush Creek (290), Crab Creek (299), Dan River
(6481),22 Horsepasture River (10512), Watauga River (13574 and 13605), Buckeye Creek
(12430), and Yadkin River (13904, 14027, and 14028).23 North Carolina must revise its 303(d)
list and sampling approach to assess compliance with the correct temperature standard -which,
in classified trout streams, is 20' C.
Application of the correct standard can decide whether a stream segment is listed as
impaired and therefore whether the sources of impairment will be addressed through a TMDL or
another process. For example, the draft 2022 303(d) list applies the temperature standard for
mountain and upper piedmont waters of 29' C to the First Broad River (WS-V, Tr; AU
ID:12758) and concludes that it complies relying on data from monitoring station A4800000.
That data shows that this segment was sampled 53 times during the relevant time period and
none of those samples exceeded 29' C.24 But twenty of those samples exceeded the trout waters
temperature standard of 20' C-a 38% exceedance rate at 99% confidence.25 Applying the
correct standard, this stream should be listed as impaired for temperature. DEQ must revise its
approach to apply the correct temperature standard to classified trout waters and include
waterbodies on its 303(d) list that are exceeding that standard consistent with its listing
methodology.
19 See, e.g., N.C. Dep't of Envtl. Qual., North Carolina 2022 Draft Integrated Report at 289,
https:Hedocs.deq nc.gov/WaterResources/DocView.aspx?dbid=0&id=2167748&cr=1 [hereafter "2022 Draft
Integrated Report"] (finding that Shooks Creek -a classified trout water- is "[m]eeting" the "20°C" water
temperature criteria based on legacy random ambient monitoring data).
20 See supra note 15.
21 The numbers provided in parentheses are the "AU ID" from the 2022 Draft Integrated Report.
22 Compounding its error, DEQ assesses compliance for this segment using the temperature standard applicable to
lower piedmont and coastal plain waters (32' Q.
23 For hundreds of other classified trout waters, the 2022 Draft Integrated Report provides no indication about which
temperature standard DEQ applies.
24 See N.C. Dep't of Envtl. Qual., BasinSummAMSMCPALMP20162020and20192020_20210820.
25 Id.
on

D. North Carolina must list trout streams that are exceeding the temperature standard.
The First Broad River is not the only trout stream exceeding the trout waters temperature
standard but omitted from the draft 2022 303(d) list. The data DEQ used to prepare the draft
2022 303(d) list shows that multiple classified trout waters with ten or more sample results are
exceeding the trout waters temperature standard more than 10% of the time at greater than 90%
confidence level. DEQ must list these streams on its 2022 303(d) list. Monitoring locations
showing exceedances of the trout waters temperature standard include:
• First Broad River (A4800000)26 — 38% exceedance with 99% confidence level
• Cane River (E9850000) — 32% exceedance with 99% confidence level
• North Toe River (E8100000) — 28% exceedance with 99% confidence level
• Valley River (F4000000) — 25% exceedance with 97% confidence level
• French Broad River (E0150000) — 25% exceedance with 99% confidence level
• Pigeon River (E54950000) — 23% exceedance with 99% confidence level
• Davidson River (E0850000) — 2 1 % exceedance with 98% confidence level
• South Toe River (E8200000) — 21% exceedance with 95% confidence level
• Horsepasture River (H6000000) — 20% exceedance with 93% confidence level
• North Toe River (E7000000) — 18% exceedance with 92% confidence level.
E. North Carolina's trout waters temperature standard is not dependent on the presence
of thermal dischargers.
Many of these streams have exceeded the trout waters temperature standard for multiple
303(d) listing cycles but have never been listed.27 Indeed, members of the public have been
raising this concern with DEQ since at least 2008.28 In response, DEQ has explained that it
"interprets [the trout waters temperature] standard to only be assessed with thermal discharges,"
i.e., thermal point source discharges subject to National Pollutant Discharge Elimination System
("NPDES") permits.29 This interpretation is contrary to the plain wording of the standard and the
requirements of the CWA, and it is inconsistent with how DEQ and other state agencies apply
the standard outside of the 303(d) context.
First, the plain wording of the temperature standard leaves no doubt that it applies
regardless of the presence of thermal discharges. In full, the standard states:
26 Data was collected at the monitoring stations provided in parentheses.
27 See N.C. Dep't of Envtl. Qual., 2020 303(d) list Integrated Report Data, BasinSummAMSCoalitl418and1718,
https://files nc.gov/ncdeq/Water%20Quality/Planning/TMDL/303d/2020/2020_DATA.zip.
28 N.C. Dep't of Env't and Nat. Res., Responsiveness Summary on the Draft 2008 303(d) (Category S) List
Submitted April 1, 2008, at 13, https:Hfiles.nc.gov/ncdeq/Water%20Quality/Planning/TMDL/303d/Draft%
26Revised2008ResponseSummaries.pdf, Attach. 6.
29 Id.; N.C. Dep't of Envtl. Qual., North Carolina 2020 Draft 303(d) List Public Comment Responsiveness Summary
Submitted June 3, 2021, at 51, https://deq nc.gov/media/20453/download (the trout waters temperature standard
"applies in its entirety to the evaluation of heated discharges").
7

Temperature: not to exceed 2.8 degrees C (5.04 degrees F) above the natural water
temperature, and in no case to exceed 29 degrees C (84.2 degrees F) for mountain
and upper piedmont waters and 32 degrees C (89.6 degrees F) for lower piedmont
and coastal plain waters; the temperature for trout waters shall not be increased by
more than 0.5 degrees C (0.9 degrees F) due to the discharge of heated liquids, but
in no case to exceed 20 degrees C (68 degrees F).
15A N.C. Admin. Code 2B .0211(18) (emphasis added). This standard embeds two prohibitions,
only the first of which is dependent on the presence of thermal dischargers. The first prohibition
is that thermal dischargers may not increase stream temperature by more than 0.5° C. For
example, heated discharges that cause stream temperatures to increase from 17 to 18' C are not
allowed. The second prohibition is that stream temperatures shall "in no case"—i.e., under no
circumstances —exceed 20' C. The second prohibition is not dependent on the presence of
thermal discharges but provides a temperature threshold that shall not be exceeded "in any case."
This is consistent with the grammatical structure of the standard, which consists of two
clauses. The first clause, related to the discharge of heated liquids, is separated from the second
by a comma and a "but." The comma indicates a break from the preceding language. And use of
"but" indicates that the second clause applies "notwithstanding" the first.30 In other words,
notwithstanding the limit on temperature increases caused by thermal discharges, the temperature
shall "in no case" exceed 20' C.
The first half of the general surface -water temperature standard lends even more
contextual support for enforcing the 20' C limit regardless of whether thermal point source
discharges are present. The full standard starts by setting a delta limit applicable to thermal
discharges: Temperature may not be increased by more than 2.8° C above baseline.31 It then
immediately pivots to a limit applicable to all waters: Temperatures are "in no case to exceed" 29
or 32' C, depending on location. The trout waters standard is functionally identical: It sets a delta
limit applicable to thermal discharges —temperature may not be increased by more than 0.5° C
then immediately pivots to a limit applicable to all trout waters: temperatures are "in no case to
exceed 20 degrees C." DEQ does not suggest that the 29 and 32' C limits only apply to thermal
point source discharges. Given this context, DEQ cannot say that functionally identical language
in the 200 C limit commands a completely different result.
Understanding the 200 C limit to apply regardless of the presence of thermal point source
dischargers is also the most logical interpretation of the trout waters temperature standard. Trout
waters are subject to a more stringent temperature standard because high stream temperatures are
lethal to trout. It makes little sense to subject trout to high stream temperatures attributable to
30 But, Merriam Webster (llth ed. 2003), https://www merriam-webster.com/dictionary/but.
31 Although this clause does not itself mention discharges of heated liquids, DEQ interprets this standard to prohibit
thermal dischargers from increasing water temperatures by more than 2.8° C. See, e.g., Dep't of Envtl. Quality,
NPDES Permit NC0000396 at 5 (Apr. 9, 2020), https://files nc.gov/ncdeq/Coal%20Ash/2020-actions/NC0000396-
Final-Permit.pdf. EPA also understands the 2.8° C limit to apply to thermal discharges. See EPA, NC Thermal
Water Quality Standards, https://www.epa.gov/sites/default/files/2014-12/documents/nc-thermal-wqs.pdf ("The rule
limits thermal discharges to 2.8 degrees C (5.04 degrees F) above the natural water temperature and includes further
restrictions based on geographic regions of the state").
N.

nonpoint source discharges but prohibit the same increases in temperature attributable to point
source discharges. To the contrary, the standard applies regardless of whether the pollution is
caused by point or nonpoint sources.
Second, DEQ's interpretation cannot be squared with the requirements of the CWA. As
discussed above, the CWA requires states to identify designated uses for waterbodies and then
set criteria to protect those uses. See 40 C.F.R. § 130.3. "Water quality standards reflect a state's
designated uses for a water body and do not depend in any way upon the source of pollution."
Pronsolino, 291 F.3d at 1137. DEQ's interpretation turns this on its head by arguing that
application of North Carolina's trout waters temperature standard —and therefore protection of
designated uses —turns on whether pollution is coming from point sources. North Carolina could
not promulgate, and EPA could not approve, a water quality standard that restricts point source
temperature pollution but allows unlimited nonpoint source temperature pollution to enter a
stream because that standard would not protect the designated uses of the waterbody. North
Carolina state law reaches this same conclusion: "[W]ater quality standards relate to the
condition of waters as affected by the discharge of sewage, industrial wastes, or other wastes
including those from nonpoint sources and other sources of water pollution." 15A N.C. Admin.
Code 02B .0205 (emphasis added).
Neither can DEQ argue that its trout waters temperature standard applies to point and
nonpoint sources generally except in the 303(d) context where only point source discharges are
relevant. States must list waterbodies on 303(d) lists that are exceeding water quality standards
regardless of "whether a water body receives pollution from point sources only, nonpoint sources
only, or a combination of the two." Pronsolino, 291 F.3d at 1132-33. This is consistent with
EPA's "long-standing interpretation of section 303(d)" that the "listing requirement applies to
waters impaired by point and/or nonpoint sources. ,32 Specific to temperature, EPA has
previously advised that:
[W]aterbodies that do not meet an applicable State water quality criterion for
temperature or a designated use due to temperature should be listed. Listing is
appropriate because the applicable water quality standard is not met. Heat, the cause
of the impairment, is defined as a "pollutant" under section 502(6) of the Clean
Water Act and can be allocated. It is immaterial to the listing decision whether the
source of the temperature -related impairment is a thermal discharge or solar
radiation. Both are sources of heat, and the heat can be allocated through the TMDL
process.33
12 U.S. Envtl. Protection Agency, Decision Document for the Approval of the North Carolina Department of
Environmental Quality 2018 Section 303(d) List at 4 (May 22, 2019),
https://files nc.gov/ncdeq/Water%20Quality/Planning/TMDL/303d/2018/20190522-NC-208-303d-Approval-
Package.pdf.
ss U.S. Envtl. Protection Agency, National Clarifying Guidance for the 1998 State and Territory Section 303(d)
Listing Decisions at 5, https://www.epa.gov/sites/production/files/2015-10/documents/lisgid.pdf, Attach. 7.
9

Indeed, EPA recently prepared a TMDL to address exceedances of temperature water
quality standards promulgated to protect salmon and steelhead in the Pacific Northwest.34 That
analysis noted, as an example, that "temperature TMDLs typically identify loss of riparian shade
as a nonpoint source of heat."35
In short, to comply with the CWA, North Carolina may not 1) interpret its trout waters
temperature standard as only applicable to temperature increases caused by point source
discharges or 2) otherwise exclude effects from nonpoint source discharges when preparing
303(d) lists.
Third, DEQ's interpretation of the trout waters temperature standard as only relating to
temperature increases attributable to thermal point source discharges is inconsistent with how
DEQ and other state agencies apply the standard outside of the 303(d) context. For instance, the
North Carolina Forest Service has promulgated "performance standards for the protection of
water quality during silvicultural activities." 2 N.C. Admin. Code 60C.0101. One performance
measure requires "[s]hade ... [to] be retained to protect [perennial] streams from temperature
fluctuations that result in a violation of a water quality standard of the Environmental
Management Commission as contained in Rule 1 SA NCAC 2B . 0211." Id. 60C.0208 (emphasis
added).36 While the performance measure is not specific to trout waters, it shows that the North
Carolina Forest Service understands that nonpoint source pollution can cause a violation of
stream temperature water quality standards.
Elsewhere, DEQ itself has confirmed that the 20' C trout waters temperature standard is
an absolute prohibition regardless of whether a stream is heated by point or nonpoint source
discharges. With funding from EPA, DEQ completed a study in 2013 to assess risks to streams
from headwater impoundments.37 There, DEQ confirmed that trout waters "have a maximum
allowable [temperature] value of 20°C."38 The study ultimately found that "[d]esignated trout [ ]
waters showed extremely high levels of exceedences [sic] of the 20°C maximum" with no
discussion of whether those exceedances were attributable to point or nonpoint source
discharges.39
Finally, and most significantly, DEQ has fled enforcement actions against private
landowners for causing exceedances of the trout waters temperature standard even when no
thermal point source discharges were involved. These enforcement actions thus relied on an
"See U.S. Envtl. Protection Agency, Columbia and Lower Snake Rivers Temperature Total Maximum Daily Load
(Aug. 13, 2021), https://www.epa.gov/system/files/documents/2021-08/tmdl-columbia-snake-temperature-
08132021.pdf, Attach. 8.
35 Id. at 33 n.9 (emphasis added).
36 See also North Carolina Forestry Best Management Practices Manual to Protect Water Quality,
https://www.ncforestservice.gov/publications/BMP2021/202 INCFSBMPManual.pdf
31 See N.C. Dept' of Env't Qual, Assessing Impacts Due to Small Impoundments in North Carolina to Support 401
Certification Policies (Feb. 28, 2013), http://www.ncwetlands.org/wp-content/uploads/Impacts-Due-to-Small-
impoundments-2013-report.pdf, Attach. 9.
38 Id. at 23.
39 Id. at 41.
10

interpretation of the temperature standard DEQ has sought to disclaim in the 303(d) listing
context.
On June 30, 2021, DEQ issued a Notice of Violation to a landowner in Surry County,
North Carolina, for violations of water quality standards stemming from widespread clearing of
forested lands. DEQ did not allege that the clearing activities resulted in a point source discharge
but did state that:
Title 15A North Carolina Administrative Code 213 .0211 (18) requires
"Temperature: not to exceed 2.8 degrees C (5.04 degrees F) above the natural water
temperature, and in no case to exceed 29 degrees C (84.2 degrees F) for mountain
and upper piedmont waters ...; the temperature for trout waters shall not be
increased by more than 0.5 degrees C (0.9 degrees F) due to the discharge of heated
liquids, but in no case to exceed 20 degrees C (68 degrees F);" Forested buffers
adjacent to streams are important measures in regulating water temperature of
streams, particularly in shallow tributaries as exists on the subject Parcels. Clearing
of the vegetated buffers may results in increased temperatures of surface waters
draining to Ramey Creek and Big Pine Creek. Temperature field readings collected
by DWR staff on June 28, 2021 constitute violations of NC Water Quality
Standards.40
The landowner failed to rectify the violations and on August 6, 2021, DEQ filed a
Verified Complaint and Motion for Preliminary Injunctive Relief in Surry County Superior
Court.41 The Complaint states:
Forest buffers adjacent to streams are important measures in regulating water
temperature of streams. Clearing of the vegetated buffers may result in increased
temperatures. In Trout Waters, the temperature is not to, in any case, "exceed 20
degrees C (68 degrees F). " 15A NCAC 2B .0211(18).42
The Verified Complaint continued by explaining that on "June 28, 2021, [DEQ] staff
conducted water quality sampling. [DEQ]'s water quality samples show several temperature
exceedances above the maximum allowable temperature of 20°C. 15A NCAC 2B .0211(18).9943
It explained that "clear -cutting trees near the border of streams removes shade and can cause
water temperature to exceed the regulatory limit for trout waters." Shade removal is not a point
source thermal discharge, though DEQ still recognized that it could contribute to violations of
the temperature standard for trout waters.44 The Verified Complaint concluded by alleging that
4' Attach. 10 (emphasis added). On October 5, 2021, DEQ issued a Notice of Continuing Violation related to
activities on the same parcels of land and stating more explicitly that "[t]emperature readings above 68 degrees .. .
[constitute] violations of NC Water Quality Standards." Attach. 11. Sixty-eight degrees is the maximum temperature
allowed in classified trout waters.
4' Attach. 12.
42 Id. at ¶ 15 (emphasis added).
43 Id .at ¶ 43.
44 Id.
11

the landowner remained in violation of North Carolina's water quality laws, including the
temperature standard applicable to trout streams, and asking the court to order the landowner to
prepare a "Temperature Restoration Plan" to "restore streams to the proper temperature for
trout."4s
We applaud DEQ for taking action to resolve the water quality violations in Surry
County. But the enforcement action removes any doubt that DEQ understands the trout waters
temperature standard to apply in situations where thermal point source discharges are not present
and to prohibit all exceedances of the 20°C temperature standard. DEQ cannot take the opposite
position now as it compiles its 2022 303(d) list. It must list streams as impaired where data
shows the streams exceeding the trout waters temperature standard consistent with DEQ's listing
methodology.
F. Point source dischargers are present on or upstream of several North Carolina trout
streams exceeding the trout waters temperature standard.
Based on this faulty application of the trout waters temperature standard when compiling
past 303(d) lists, DEQ has listed some trout streams as "Category 3a" in its 2022 Draft Integrated
Report.46 Category 3a is reserved for instances "where data are insufficient to determine if a
parameter is meeting or exceeding criteria."47 Presumably, these streams have been listed under
Category 3a because DEQ did not assess the presence of thermal point source dischargers when
compiling its 303(d) list and, because it interpreted the standard to only apply when a thermal
point source discharger was present, concluded it had insufficient data to know whether the
standard was exceeded. As explained above, this interpretation of North Carolina's temperature
standard for trout waters is inconsistent with the CWA and DEQ's application of the standard
outside of the 303(d) arena. But even under DEQ's incorrect interpretation of the standard, DEQ
should have listed more segments because point source dischargers are, in fact, present on or
upstream of multiple segments exceeding the trout waters temperature standard. The list
provided below is not comprehensive and was compiled using information available on DEQ's
"Online GIS Permits Map."48 It also does not encompass general NPDES permits.
Data relevant to the French Broad River (AU ID 10925) is collected at monitoring station
E0150000. That data shows a 25% exceedance rate of the trout waters temperature standard at
99% confidence level.49 NPDES Permit Nos. NC0000311,50 NC0021946,51 NC0024295,12
45 Id. at ¶¶ 52-56; Prayer for Relief ¶ 2.
46 See, e.g., 2022 Integrated Report, Little River (AU ID 538) (listed as Category 3a for trout waters temperature
standard).
47 N.C. Dep't of Envtl. Quality, 2020 Integrated Report Category Assignment Procedure at 5,
https:Hdeq.nc.gov/media/17840/download.
48 See https:Hdata-ncdenr.opendata.arcgis.com/apps/ncdenr::permits-map/explore
49 Supra note 24.
" Attach. 13.
51 Attach. 14.
52 Attach. 15.
12

NCO08622353 all appear to discharge into or upstream of this stream segment. None of these
permits impose limits, aside from monitoring requirements, related to temperature except Permit
No. NC0000311, which states that the "temperature of the effluent shall be such as not to cause
an increase in the temperature of the receiving stream of more than 0.5°C and in no case cause
the ambient water temperature to exceed 20°C."
Data relevant to the Horsepasture River (AU ID 10512) is collected at monitoring station
H6000000. That data shows a 20% exceedance rate of the trout waters temperature standard with
93% confidence.54 NPDES Permit Nos. NCO05942151 and NCO05943956 discharge into,
upstream, or into tributaries upstream of this stream segment. Neither of these permits imposes
limits related to temperature except for monitoring requirements.
There are two monitoring stations on the North Toe River (E7000000 and E8100000).
They both show greater than 10% exceedance of the trout waters temperature standard at greater
than 90% confidence level.57 Multiple hard rock mines discharge into the North Toe River.
These mines have some combination of general permits, NPDES stormwater permits, and
NPDES wastewater permits including but not limited to NPDES Permit Nos. 0000175, 0000361,
0084620, 58 0085839, 0000400, and 0000353.59 None of these wastewater permits appear to
impose any limitation related to temperature beyond monitoring. NPDES Permit No. 0021423
also discharges into the North Toe River and lacks requirements related to temperature beyond
monitoring.60
The single monitoring station on the Valley River (F4000000) also documents 25%
exceedance of the trout waters temperature standard with 97% confidence .6 1 NPDES Permit No.
NCO020800 discharges into the Valley River and includes no limitation on temperature
discharges beyond monitoring.
In conclusion, DEQ has for too long ignored its obligation to include on its 303(d) list
stream segments that are exceeding the temperature standard applicable to trout waters. DEQ's
data shows this standard has been exceeded more than 10% of the time at greater than 90%
confidence level on multiple trout waters that DEQ has refused to list as impaired. These
exceedances may be attributable to a combination of point and nonpoint source discharges. DEQ
must list these streams as impaired on its 303(d) list as a first step towards addressing these
exceedances.
ss Attach. 16.
54 Supra note 24.
" Attach. 17.
16 Attach. 18.
57 Supra note 24.
58 Attach. 19
59 Attach. 20.
60 Attach. 21.
61 Supra note 24.
13

III. DEQ must explain how it assesses compliance with narrative water quality
standards.
When preparing its 303(d) list, DEQ must list those waterbodies for which existing
requirements "are not stringent enough to implement any water quality standards applicable to
such waters" including water quality standards based on "narrative criteria."40 C.F.R. §
130.7(b). DEQ's draft 2022 303(d) list and listing methodology fail to disclose how narrative
criteria are considered in the 303(d) process. DEQ must correct this oversight.
Of particular importance, North Carolina's toxic substances standard requires that "the
concentration of toxic substances, either alone or in combination with other wastes, in surface
waters shall not render waters injurious to aquatic life or wildlife, recreational activities, public
health, or impair the waters for any designated uses." 15A N.C. Admin. Code 2B.0208(a).
Compliance with this standard is critical especially for emerging contaminants, such as per- and
polyfluoroalkyl substances ("PFAS"), for which DEQ has yet to promulgate a numeric water
quality standard. EPA recently recognized PFAS as "an urgent public health and environmental
issue facing communities across the United States."62 And DEQ has recognized that PFAS "meet
the definition of `toxic substance"' under North Carolina law.63 DEQ must disclose how it is
applying its narrative toxic substances water quality standards to ensure that waterbodies
contaminated by PFAS (and other emerging contaminants that lack numeric water quality
criteria) are properly listed on the state's 303(d) list.
IV. DEQ's delisting methodology remains statistically unsound.
For several years, multiple groups have pointed out flaws in DEQ's delisting
methodology. Those concerns remain, and we incorporate previous comments by reference
here.64
Briefly, North Carolina's methodology for delisting waters that are impaired for non-
toxic pollutants is flawed because it fails to reverse the null hypothesis used for listing decisions.
Stated differently, while it is appropriate to complete statistical analysis assuming stream
segments are not impaired when evaluating whether a segment should be listed, that assumption
must be reversed when evaluating whether a segment should be delisted because already listed
segments must be presumed impaired until proven otherwise. Instead, DEQ applies the same
method for both listing and delisting—whether waterbodies exceed criteria more than 10% of the
time with more than 90% confidence —and attempts to cure the imbalance in statistical
confidence by adding a second step to its delisting decisions. But this second step fails to cure
61 EPA, PFA Strategic Roadmap: EPA's Commitments to Action 2021-2024, at 1, available at
https://www. epa. gov/system/files/documents/2021-10/pfas-roadmap_final-508.pdf.
63 Amended Complaint, N.C. Dept. of Environmental Quality v. Chemours, 17 CVS 580, 32 (N.C. Super. 2018),
Attach. 22 (stating that "the process wastewater from [Chemours] Fluoromonomers/Nafion® Membrane
Manufacturing Area contains and has contained substances or combinations of substances which meet the definition
of `toxic substance' set forth in 15A N.C.A.C. 2B .0202," referring to GenX and other PFAS).
"See Letter from Spencer Scheidt, SELC, to Andy Painter, DEQ at 1-9 (Apr. 2, 2021), Attach. 23.
14

the fundamental flaw with the analysis —failure to reverse the null hypothesis —and allows DEQ
to remove impaired waterbodies from the list with less statistical confidence than required to list
them in the first place.
At the second step, DEQ allows previously listed waters with an exceedance rate greater
than 10% with but less than 90% statistical confidence to be delisted "if there are less than 2
excursions of the criterion in newer data that have not been previously assessed." 65 For those
previously listed waters with less than a 10% exceedance rate, waters are delisted "if there is
greater than 40% statistical confidence that there is less than a 10% exceedance of the criterion
or if there are less than 3 excursions of the criterion in newer data that have not been previously
assessed. ,66 On their own, these exceedance limits are arbitrary and fail to account for sample
size. They also fail to bring the delisting methodology to the 90% confidence level required for
sound statistical analysis.67
This has real consequences. The Cane River is an important trout stream and is also home
to the endangered Appalachian elktoe mussel, both of which are threatened by turbidity and
sediment deposition. In 2018, the Cane River was listed as impaired for turbidity. For the 2020
303(d) listing cycle, DEQ assessed data from forty-nine sampling events, eight of which
demonstrated violations of the turbidity standard.68 Applying DEQ's listing methodology this
translates to a 16.3% exceedance level with 88.8% confidence, just shy of the required 90%. Had
DEQ appropriately reversed the null hypothesis, these same numbers would translate to a
delisting decision confidence level of 5.2%.69 Yet because the Cane River had a greater than
10% exceedance rate with just under 90% confidence, DEQ moved to step two of its delisting
methodology to consider whether "there are less than 2 excursions of the criterion in newer data
that have not been previously assessed." Of the sixteen newer samples related to the 2020 303(d)
list, only one demonstrated an exceedance of the turbidity standard, leading DEQ to delist the
Cane River to Category 3a (insufficient data). Notably, DEQ would have needed to show one
exceedance out of at least thirty-eight samples to reach a 90% confidence level for its delisting
decision based on this "newer" data only.
This 303(d)-listing cycle, the "newer data" under DEQ's methodology shows the Cane
River was sampled eleven times and two of those samples exceeded the water quality standard
for turbidity —an exceedance rate of 18%.70 Thus the Cane River continues to exceed water
65 N.C. Dep't of Envtl. Quality, 2022 303(d) Listing and Delisting Methodology at 4 (May 13, 2021),
https:Hdeq.nc.gov/media/19374/download.
66 Id.
67 Any "statistical conclusion that has a confidence level of less than 90% is considered not acceptable by most
statistics practitioners." Pi-Erh Lin, Duane Meeter, & Xu-Feng Nui, A Nonparametric Procedure for Listing and
Delisting Impaired Waters Based on Criterion Exceedances at 7 (2000),
https://www.waterboards.ca.gov/water issues/programs/tmdl/records/state board/2003/ refl913.pdf.
68 See N.C. Dep't of Envtl. Quality, Div. of Water Res., BasinSummAMSCoalitl418and1718 [hereinafter "2020
Data"], https:Hfiles nc.gov/ncdeq/Water%20Quality/Planning/TMDL/303d/2020/2020_DATA.zip.
69 The delisting "level of confidence" was calculated using the Excel BINOM.DIST function: 1-
[BINOM.DIST(#exceedances, #samples, 10% exceedance rate, TRUE)].
70 Supra note 24
15

quality standards more than 10% of the time, but DEQ proposes to keep it listed under Category
3a based on its faulty delisting methodology. Had DEQ used a statistically sound delisting
approach, the Cane River would never have been removed from the impaired list in the first
instance and the reasons for its turbidity impairment should have been assessed and mitigated
through preparation of a TMDL. Instead, it continues to routinely exceed water quality standards
but remains indefinitely listed in Category 3a to the detriment of species like Appalachian elktoe
that require cool, clean water to survive.
DEQ also relies on the 10% exceedance rate to assess impairment for toxic pollutants. As
EPA has explained, this approach is inappropriate for toxics.71 Nevertheless, DEQ has never
"provided a scientifically defensible rationale to support [its] Listing Methodology for toxics."72
DEQ has failed to do so again as part of its draft 2022 303(d) list. During each of the past four
303(d) cycles EPA has rejected DWR's toxics findings and independently reviewed North
Carolina's water quality data to determine whether all waterbody impairments were identified —
it will be required to do so again in 2022.
V. DEQ must collect data at times and locations that reveal the full extent of
pollution.
Finally, we reiterate and incorporate the concerns raised by several groups in comments
on the 2020 303(d) list related to deficiencies in DEQ's monitoring network and sampling
approach.73 Specifically, an ambient monitoring program that samples at arbitrary intervals and
allows sampling to be delayed for "bad weather" with no limitation is likely to underreport
exceedances for pollutants like turbidity. DEQ's ambient monitoring locations also appear to
avoid some of the most problematic areas, resulting in underreporting pollution and unjustified
delistings. We are mindful of limitations in agency resources and competing agency priorities,
but we encourage DEQ to work to develop a more representative monitoring network.
VI. Conclusion
We appreciate the opportunity to submit comments on North Carolina's draft 2022
303(d) list. We request a meeting with DEQ to discuss the trout waters temperature standard. In
particular, we would like to better understand DEQ's position regarding application of the
standard and discuss ways to mitigate rising temperatures in trout streams.
71 U.S. Envtl. Protection Agency, Decision Document for the Partial Approval of the North Carolina Department of
Environment Quality 2016 Section 303(d) List at 12 (Dec. 8, 2016),
https://files nc.gov/ncdeq/Water%20Quality/Planning/TMDL/303d/2016/NC2016-303dDecisionPackage2Ol6l2O8
%20%28003%29.pdf.
72 Id. at 22.
73 See supra note 64 at 15-17.
16

Sincerely,
pv�K I
Patrick Hunter
Managing Attorney
phunter(&,selcnc. org
Susannah Knox
Senior Attorney
sknoxgselcnc.org
cc via email only:
Lauren Petter, EPA Region 4, [e-mail]
17

Attachment 2
Comments on trout temperature
standards in five draft NPDES
permits

SOUTHERN 48 Patton Avenue, Suite 304 Telephone [phone]
ENVIRONMENTAL Asheville, NC 28801 Facsimile 828-258-2024
LAW
CENTER
September 30, 2022
Via E-mail
Richard Rogers
N.C. Dept. of Environmental Quality
Division of Water Resources
Water Quality Permitting Section
1617 Mail Service Center
Raleigh, NC 27699-1617
[e-mail]
Dear Mr. Rogers:
Please accept the following comments submitted on behalf of the Catawba Riverkeeper
Foundation, MountainTrue, North Carolina Chapter of Trout Unlimited, North Carolina Wildlife
Federation, Watauga Riverkeeper, and the Southern Environmental Law Center related to
application of the trout waters temperature standard in five recently noticed draft National
Pollutant Discharge Elimination System (NPDES) permits: NCO030325 (Buffalo Meadows
WWTP), NCO042358 (Adams Apple Condominiums WWTP), NCO062961 (Tynecastle
WWTP), NC0006564 (Baxter Healthcare Corp. WWTP), and NCO059421 (Sapphire Lake
WWTP No. 1). Proper application of the trout waters temperature standard is critical to
protecting trout populations in North Carolina. The Department of Environmental Quality (DEQ)
has correctly applied the trout waters temperature standard for three of the permits, but not for
two others. We ask that DEQ promptly correct these deficiencies before finalizing the permits.
I. Trout require cold, clean water to survive.
Keeping water temperature in designated trout waters below certain thresholds is
critically important because North Carolina's three species of trout —brook trout, brown trout,
and rainbow trout —require cold, clean, oxygen -rich water to survive and thrive. Water
temperature for these trout generally needs to be kept below 20' C (68' F).' Unfortunately, past
and ongoing land management practices threaten trout habitats, including by inducing stream
temperature increases. As we explained in our comments on North Carolina's draft 2022 Clean
Water Act § 303(d) list, numerous trout streams routinely exceed safe water temperatures for
trout.2
This problem is being exacerbated by climate change. By 2060, western North Carolina
is predicted to see 10-20 more days each year with air temperatures above 35' C (95' F),
increasing the potential for water temperatures to rise above 21.10 C (70' F)—levels that can be
1 Trout Species of North Carolina, Fly Fishing NC (accessed Sept. 26, 2022), https://www.flyfishingnc.com/trout-
species-of-north-carolina.
2 S. Envtl. L. Ctr., Comments on North Carolina's Draft 2022 § 303(d) List (Feb. 28, 2022), Attachment 1.
Charlottesville Chapel Hill Atlanta Asheville Birmingham Charleston Nashville Richmond Washington, DC

lethal to trout.' This combination of past habitat loss, ongoing poor land management practices,
and climate change poses an existential threat to many western North Carolina trout populations.
Declines in trout populations —driven by increasing stream temperatures or otherwise
will hurt local economies. The total economic benefit of trout fishing in North Carolina is
estimated at $383.3 million annually, supporting nearly 3,600 jobs.4 If trout habitats are further
reduced, these economic benefits will be at risk. Overall, stream temperatures in North Carolina
are increasing, and this trajectory is predicted to continue under a changing climate. To protect
trout populations and the businesses that rely on them, North Carolina must take proactive steps
to ensure trout waters remain sufficiently cold.
II. North Carolina promulgated a temperature water quality standard to protect
trout.
Recognizing that trout require cold water, North Carolina exercised its authority under
the Clean Water Act to develop a temperature water quality standard designed to keep trout
streams cool. The Clean Water Act requires states to designate "uses" of waterbodies and
promulgate standards to protect those uses. See 33 U.S.C. § 1313; 40 C.F.R. § 131.10; N.C. Gen.
Stat. § 143-214.1. All waterbodies in North Carolina are subject to a temperature standard to
protect their associated designated use. 15A N.C. Admin. Code 2B.0211(18). Some North
Carolina waterbodies have been assigned a "trout waters" use. See 15A N.C. Admin. Code
213.0301(b)(3) (explaining trout waters classification). The temperature standard —for both trout
waters and non -trout waters —provides that water temperature is:
not to exceed 2.8 degrees C (5.04 degrees F) above the natural water temperature,
and in no case to exceed 29 degrees C (84.2 degrees F) for mountain and upper
piedmont waters and 32 degrees C (89.6 degrees F) for lower piedmont and coastal
plain Waters; the temperature for trout waters shall not be increased by more than
.5 degrees C (0.9 degrees F) due to the discharge of heated liquids, but in no case
to exceed 20 degrees C (68 degrees F).
15A N.C. Admin. Code 2B.0211(18).
The standard has two parts —a delta limit and an overall prohibition. In non -trout waters,
the first part prohibits an increase attributable to a discharger of more than 2.8° C above the
natural water temperature. Under the second part, temperature shall "in no case" exceed 29' C in
mountain and upper piedmont waters and 320 C in lower piedmont and coastal plain waters
regardless of the presence of permitted dischargers.
3 Emma Johnson, Climate Change Challenges Trout Industry in North Carolina, Carolina Public Press (Feb. 17,
2021), https://carolinapublicpress.org/42527/climate-change-challenges-trout-industry-in-north-carolina/. See also
Kunkel, K.E., et al., 2020: North Carolina Climate Science Report,
https://ncics.org/wpcontent/uploads/2020/ 10/NC_Climate_Science_Report_FullReport_Final_revised_September20
20.pdf.
4 N.C. Wildlife Res. Comm'n, Mountain Trout Fishing: Economic Impacts on and Contributions to North
Carolina's Economy (2015), https://www.ncwildlife.org/Portals/0/Fishing/documents/Economic-Impacts-Trout-
Fishing.pdf.
OA

The trout waters standard follows this same structure: Stream temperature may not be
increased "by more than .5 degrees C ... due to the discharge of heated liquids" but "in no case"
shall stream temperature exceed 20' C. This makes sense because keeping trout waters below
20' C—regardless of the presence of permitted dischargers —is critical to sustaining healthy trout
populations.
North Carolina's temperature standard, including for trout waters, is implemented in part
through NPDES permits that regulate point source discharges by setting limits and monitoring
requirements for a variety of water quality characteristics. 33 U.S.C. § 1342(a). State agencies
with delegated authority to administer the NPDES program, such as DEQ, are responsible for
ensuring NPDES permits identify and apply the correct water quality limits for the waterbody
into which the permittee will be discharging effluent.
III. DEQ inconsistently applies the trout waters temperature standard in draft
NPDES permits currently out for comment.
We commend DEQ for correctly applying the trout waters temperature standard in three
recently noticed NPDES permits. But DEQ incorrectly applies this same standard in two
additional permits, one of which incompletely states the discharger's obligations, while the other
lacks any reference to a temperature standard whatsoever. DEQ must correct its application of
the trout waters temperature standard in these final two permits.
DEQ correctly applies the trout waters temperature standard in draft NPDES permits
NCO030325 (Buffalo Meadows WWTP), NCO042358 (Adams Apple Condominiums WWTP),
and NCO062961 (Tynecastle WWTP). All three permits authorize discharges into Class B trout
waters.5 And all three explain that "instream temperature shall not be increased by more than 0.5
degrees C (0.9 degrees F) due to the discharge of heated liquids, but in no case to exceed 20
degrees C (68 degrees F)."6 Crucially, the permits explain that "[i]f the stream temperature
exceeds 20 degrees C due to natural background conditions, the effluent cannot cause any
increase in instream water temperature."7 Restated, all three permits recognize that trout waters
may "in no case" exceed 20' C; they therefore prohibit all stream -warming discharges into trout
waters already exceeding that threshold.$
We especially commend DEQ for applying the appropriate trout waters temperature
standard to draft permits NCO042358 (Adams Apple Condominiums WWTP) and NCO062961
(Tynecastle WWTP), which both discharge into the Watauga River. When preparing its § 303(d)
lists, DEQ has incorrectly applied the non -trout "mountain waters" temperature standard to the
Watauga River which allows increases in water temperature up to 29' C.9 Those temperatures
5 See Draft Permit NC0030325, Draft Permit NC0042358, Draft Permit NC0062961.
6 See Draft Permit NC0030325, at 3 n.4; Draft Permit NC0042358, at 3; Draft Permit NC0062961, at 3.
'Id. (Emphasis added).
s Id.
9 See, e,g., North Carolina 2022 Integrated Report, at 1035-36 (applying the 29' C standard to AU IDs 13574 and
13605), https://edocs.deq nc.gov/WaterResources/DocView.aspx?dbid=0&id=2361713&cr=1.

can be lethal to trout, and we are pleased DEQ is appropriately applying the trout waters 200 C
standard in Watauga River permits.
Unfortunately, DEQ abandons this approach for Draft NPDES Permit NC0006564, which
authorizes discharges from the Baxter Healthcare Corp. WWTP into the North Fork of the
Catawba River —also a Class B trout water. DEQ starts out on the right foot, explaining that the
"facility shall not exceed the instream water temperature of 20' C and not exceed 0.5°C above
background temperature." But it missteps by including language stating that "[i]f the instream
temperature exceeds 20' C upstream of the facility, the discharge will not be considered out of
compliance with this permit limit based on the maximum regulatory limit of 20' C." This latter
provision seems to allow increases of "0.5°C above background temperature," even if the
"background temperature" already exceeds 20' C. This language must be stricken for the permit
to comply with the trout water temperature standard, which requires that trout waters "in no
case" exceed 200 C. In other words, the permit must be made consistent with draft NPDES
permits NC0030325, NC0042358, and NC0062961, which correctly require that "[i]f the stream
temperature exceeds 20 degrees C due to natural background conditions, the effluent cannot
cause any increase in instream water temperature." DEQ may be able to address difficulties with
meeting this standard through the schedule of compliance being developed for the Baxter
Healthcare Corp. permit, but it cannot rewrite the trout waters temperature standard to authorize
discharges which cause or contribute to exceedances above the 20' C threshold.
Finally, Draft Permit NCO059421 authorizes the Sapphire Lake WWTP to discharge into
the Horsepasture River, a designated Class C trout water.10 But this permit makes no mention of
any temperature standard (beyond monitoring). DEQ must add language to this permit consistent
with permits NC0030325, NC0042358, and NCO062961 requiring that "instream temperature
shall not be increased by more than 0.5 degrees C (0.9 degrees F) due to the discharge of heated
liquids, but in no case to exceed 20 degrees C (68 degrees F)" and explaining that "[i]f the
stream temperature exceeds 20 degrees C due to natural background conditions, the effluent
cannot cause any increase in instream water temperature."
Applying the correct trout water temperature standard at the Sapphire Lake WWTP is
critical because, as we pointed out in our comments on the draft 2022 § 303(d) list, the
Horsepasture River routinely exceeds safe temperatures for trout and DEQ has consistently
applied the wrong temperature standard.11 Data used in the 2022 § 303(d) process shows with a
93% confidence level that the Horsepasture River exceeds the 20' C threshold for trout waters
20% of the time.12 DEQ must investigate and address the reasons for these exceedances,
including by applying the trout waters temperature standard in NPDES permits in this watershed.
In the 2022 § 303(d) listing process, DEQ also incorrectly applied the water quality temperature
standard for "mountain" waters ("in no case to exceed 29 degrees C") rather than trout waters
("in no case to exceed 20 degrees C") to the Horsepasture River.13 DEQ must not make the same
to Draft Permit NCO059421.
11 See Attachment I at 6-7.
12 Id. at 7.
is See North Carolina 2022 Integrated Report, supra note 9, at 895.
2

mistake here. Instead, it must apply the 20' C threshold in the Sapphire Lakes WWTP NPDES
permit.
IV. Conclusion
North Carolina has some of the best and most at -risk trout habitat in the eastern United
States. Ensuring viable trout populations persist in the future requires keeping trout streams clean
and cold. To that end, DEQ must forthrightly apply the trout waters temperature standard in
NPDES permits NC0006564 and NC0059421, as it has for permits NC0030325, NC0042358,
and NCO062961.
Please notify Henry Gargan at hgargankselcnc.org or 828-258-2023 when DEQ issues
final versions of NPDES permit Nos. NC0006564 and NC0059421. We remain available as
always to discuss any of these concerns.
Sincerely,
Henry Gargan
Associate Attorney
Southern Environmental Law Center
hgargan(a), selcnc. org
Patrick Hunter
Managing Attorney
Southern Environmental Law Center
cc: Joe Corporon [e-mail])
Charles Weaver ([e-mail])
Pam Behm ([e-mail])
Cam McNutt ([e-mail])
5

From: Water Ouality Labs
To: Chen, Sivina
Cc: millridgepoa(abskybest.com; Graznak, Jenny; Snider, Lon; Weaver, Charles
Subject: [External] Re: NPDES Permit Issuance - Mill Ridge Development WWTP NCO030473
Date: Tuesday, March 7, 2023 4:28:31 PM
Attachments: imaae001.Dna
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an
attachment to Report Spam.
Good afternoon,
I have received the attachment and was able to download it.
Thank you,
Paul Isenhour
Water Quality Lab & Operations, Inc.
Phone-[phone]
Fax- [phone]
On Friday, March 3, 2023 at 03:24:36 PM EST, Chen, Siying <[e-mail]> wrote:
Hi Mr. Isenhour,
Attached is the final NPDES permit renewal for Mill Ridge Development WWTP (NC0030473). The
permit will be effective on April 1, 2023.
Please respond to this email confirming that you received the attached document, were able to
open and view the document and have saved/printed a copy for your records.
Thank you!
Siying Chen (she/her/hers)
Environmental Specialist, Division of Water Resources
North Carolina Department of Environmental Quality
Office: [phone]
siying.chen(@ncdenr.gov

NORTH CAROLINA
E Q
Department of Environmental quality
Email correspondence to and from this address is subject to the North
Carolina Public Records Law and may be disclosed to third parties.

Water Resources T
Environmental Quality
November 17, 2017
Ms. Penny Hodge
Mill Ridge Property Owners' Association
229 Clubhouse Drive
Banner Elk, NC 28604
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Interim Director
Subject: Issuance of NPDES Permit NCO030473
Mill Ridge Development WWTP, WW-2
229 Clubhouse Drive, Banner Elk 28604
Watauga County
Dear Ms. Hodge:
The Division of Water Resources (the Division) hereby issues the attached NPDES permit for the subject
facility. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and
the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency
dated October 15, 2007, or as subsequently amended.
The Division understands that you have made no significant changes to your facility since the last permit
renewal. We have made the following updates to your previous permit:
1. The facility map has been updated.
2. Regulatory citations have been added.
3. Parameter codes have been updated in Section A. (1.).
4. Electronic reporting of discharge monitoring reports (eDMR) has been added in Section A. (2).
If any parts, measurement frequencies, or sampling requirements contained in this permit are
unacceptable, you have the right to an adjudicatory hearing, upon written request submitted within thirty
(30) days after receiving this letter. Your request must take the form of a written petition conforming to
Chapter 150B of North Carolina General Statutes, and you must file it with the Office of Administrative
Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless such a demand is
made, this permit shall remain final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the legal
requirements to obtain other permits which may be required by the Division of Water Resources or any
other Federal, State, or Local governmental permits that may be required.
State of North Carolina I Environmental Quality
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919-707-9000

Ms. Hodge
November 17, 2017
Page 2 of 2
If you have questions, or if we can be of further service, please contact Derek Denard at
[[e-mail]] or call [phone].
Respec fully,
Linda Culpepper, Interiector
Division of Water Resources, NCDEQ
Enclosure: NPDES Permit NC0030473 (Issuance Final)
he: Central Files
NPDES Program Files
WSRO Files/ Attn: George Smith

NPDES Permit NCO030473
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
NPDFS
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended, the
Mill Ridge Property Owners' Association
is hereby authorized to discharge wastewater from a facility located at the
Mill Ridge Development WWTP
229 Clubhouse Drive, Banner Elk 28604
Watauga County
to receiving waters designated as the Watauga River in the Watauga River Basin in accordance with
effluent limitations, monitoring requirements, and other conditions set forth in Parts I, H, III and IV
hereof.
This permit shall become effective January 1, 2018.
This permit and authorization to discharge shall expire at midnight on September 30, 2022.
Signed this day November 17, 17.
ff
:a
S� y Zimmerman, P.G., Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

NPDES Permit NCO030473
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit issuance, any previously issued permit bearing this number is no longer
effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the
permit conditions, requirements, terms, and provisions included herein.
Mill Ridge Property Owners' Association
is hereby authorized to:
1. continue to operate an existing 0.052 MGD dual -train wastewater treatment system that includes
the following components:
• influent bar screen
• duplex grinder pumps
• flow splitter weir box
• two aeration basins
• dual -hopper bottom clarifiers
• sludge return air lifts
• skimmer return air lifts
• aerated sludge holding basin
• tertiary treatment unit consisting of dual -cell filtration system
• clear well
• filter backwash pumps
• mud well
• ultraviolet disinfection system
• continuous recording flow measuring device
• automatically activated standby power generator
located at the Mill Ridge Development WWTP, 229 Clubhouse Drive, Banner Elk in Watauga
County; and
2. discharge from said treatment works via Outfall 001, at the location specified on the attached map
into the Watauga River [stream index 8-(1)], currently classified B; Tr, HQW waters with Subbasin
04-02-01 [HUC 0601010303 01 ] in the Watauga River Basin.
Page 2 of 6

NPDES Permit NCO030473
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 001. Such discharges shall be limited, monitored and
reported' by the Permittee as specified below:
EFFLUENT
LIMITS
MONITORING REQUIREMENTS'
CHARACTERISTIC
Monthly
Daily
Measurement
Sample
Sample
[PARAMETER CODES]
Average
Maximum
Frequency
Type
Location2
Flow (MGD)
50050
C0310
0.052 MGD
6.0 mg/L
9.0 mg/L
Continuous
Weekly
Recorder
Composite
I or E
E
BOD, 5-day (20°C) (mg/1)
_(April 1 — October 31)
BOD,(Nov 5-day — Ma h 31)
(November 1 —March 31
C0310
10.0 mg/L
15.0 mg/L
Weekly
Composite
E
Total Suspended Solids (mg/1)
C0530
10.0 mg/L
15.0 mg/L
Weekly
Composite
E
NH3 as N(mg/1) (mg/1)
(April 1 — October 31)
C0610
3.9 mg/L
19.5 mg/L
Weekly
Composite
E
NH3 as N(mg/1) (mg/1)
(November 1 — March 31)
C0610
4.0 mg/L
20.0 mg/L
Weekly
Composite
E
Dissolved Oxygen (DO) (mg/1) 00300
Daily average > 5.0 mg/L
Weekly
Grab
E
Dissolved Oxygen (DO) (mg/1)
00300
Monitor & Report
Weekly
Grab
U & D
Fecal Coliform (#/100ml) 3
31616
200/100 ml
400/100 ml
Weekly
Grab
E
(geometric mean)
Temperature (°C)
00010
Monitor & Report
Weekly
Grab
E, U & D
Total Nitrogen (mg/1)
(NO2+NO3+TK
C0600
Monitor & Report
Semi -Annually
Composite
E
Total Phosphorus (mg/1)
C0665
Monitor & Report
Semi -Annually
Composite
E
PH (su)
00400
Not < 6.0 nor > 9.0
Weekly
Grab
E
Standard Units
Footnotes:
1. The Permittee shall begin submitting Discharge Monitoring Reports electronically using NC DWR's eDMR
application system. See Condition A. (2.).
2. I = Influent; E = Effluent; U = upstream, at least 100 feet upstream from the outfall; D = downstream,
approximately 0.1 mile downstream from the outfall.
3. Fecal Coliform shall be calculated using the geometric mean, according to the procedure detailed in Part 11.
Section A.
Conditions:
• There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 6

NPDES Permit NCO030473
A. (2.) ELECTRONIC REPORTING OF MONITORING REPORTS
[G.S. 143-215.1(b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program
reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December 21, 2015.
NOTE: This special condition supplements or supersedes the following sections within Part H of this permit
(Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.)
• Section D. (6.)
• Section E. (5.)
Reporting
Records Retention
Monitoring Reports
1. Reporting Requirements ISupersedes Section D. (2.) and Section E. (5.) J@
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring
data and submit DMRs electronically using the internet. Until such time that the state's eDMR application
is compliant with EPA's Cross -Media Electronic Reporting Regulation (CROMERR), permittees will be
required to submit all discharge monitoring data to the state electronically using eDMR and will be required
to complete the eDMR submission by printing, signing, and submitting one signed original and a copy of
the computer printed eDMR to the following address:
NC DEQ / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being
physically located in an area where less than 10 percent of the households have broadband access, then a
temporary waiver from the NPDES electronic reporting requirements may be granted and discharge
monitoring data may be submitted on paper DMR forms (MR 1, 1. 1, 2, 3) or alternative forms approved by
the Director. Duplicate signed copies shall be submitted to the mailing address above. See "How to
Request a Waiver from Electronic Reporting" section below.
Regardless of the submission method, the first DMR is due on the last day of the month following the
issuance of the permit or in the case of a new facility, on the last day of the month following the
commencement of discharge.
Starting on December 21, 2020, the permittee must electronically report the following compliance
monitoring data and reports, when applicable:
Sewer Overflow/Bypass Event Reports;
Pretreatment Program Annual Reports; and
Clean Water Act (CWA) Section 316(b) Annual Reports.
The permittee may seek an electronic reporting waiver from the Division (see "How to Request a Waiver
from Electronic Reporting" section below).
Page 4 of 6

NPDES Permit NC0030473
2. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time of each
electronic submission. The permittee should use the EPA's website resources to identify the initial
recipient for the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity (EPA
or the state authorized by EPA to implement the NPDES program) that is the designated entity for receiving
electronic NPDES data [see 40 CFR 127.2(b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type
of electronic submission and for each state. Instructions on how to access and use the appropriate
electronic reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting
Rule is found at: htt ://www2.e a. ov/co liance/final-national- ollutant-discha e-elimination-s stem-
ri des-electronic-r ortiri -rule.
Electronic submissions must start by the dates listed in the "Reporting Requirements" section above.
3. How to Re uest a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic
reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division.
Requests for temporary electronic reporting waivers must be submitted in writing to the Division for written
approval at Ieast sixty (60) days prior to the date the facility would be required under this permit to begin
submitting monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and
shall thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the
Division unless the permittee re -applies for and is granted a new temporary electronic reporting waiver by
the Division. Approved electronic reporting waivers are not transferrable. Only permittees with an
approved reporting waiver request may submit monitoring data and reports on paper to the Division for the
period that the approved reporting waiver request is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are found on the
following web page:
http://deLt.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B. 11.) (b) and Supersedes Section B. (11.) (d)l
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part H,
Section B. (I 1.)(a) or by a duly authorized representative of that person as described in Part II, Section B.
(11.)(b). A person, and not a position, must be delegated signatory authority for eDMR reporting purposes.
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user account
and login credentials to access the eDMR system. For more information on North Carolina's eDMR
system,'registering for eDMR and obtaining an eDMR user account, please visit the following web page:
htit):Hdeq.ne.gov/about/divisions/water-resources/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the
following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE
ACCEPTED:
Page 5 of 6

NPDES Permit NCO030473
"I certify, underpenalty of law, that this document and all attachments were prepared under my direction
or supervision in accordance with a system designed to assure that qualifiedpersonnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the information, the information submitted is, to the best
of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties
for submitting false information, including the possibility offines and imprisonment for knowing
violations. "
5. Records Retention [Supplements Section D. 6.
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions.
These records or copies shall be maintained for a period of at least 3 years from the date of the report. This
period may be extended by request of the Director at any time [40 CFR 122.41].
Page 6 of 6

WATAUGA RIVER
[flows northwest]
Q� w� s ` _•
0
0
0 T %
r
lq0 � ter' •
r r
1
s�
AL
t+luibhouse Dr
s�
River Road 1
. = s
roes
. � ram'—�—�� -� • ��—__
{{{ I Gip IT 2043+N;
Outfa11001
Mill Ridge Property Owners' Association
Mill Ridge Development WWTP
NPDES Permit NCO030473
229 Clubhouse Drive, Banner Elk 28604
Receiving Stream: WATAUGA RIVER Stream Class: B;Tr,HQW
Stream Segment: 8-(1) Sub -Basin #: 04-02-01
River Basin: Watauga HUC: 060101030301
County: Watauga
N
SCALE
1:10,000
Approximate
Facility Boundary
r aph;c 5oc
1:15,000,000i ,
f -
1J
36.155° N,-81.7733° W
NC Grid: C11NE
USGS Quad: Valle Crucis, NC
t�

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
Mill Ridge Property Owners Association
Attn: Penny Hodge, Business Manager
PO Box 1167
Banner Elk, NC 28604-1167
Subject: Permit Renewal
Application No. NCO030473
Mill Ridge Development WWTP
Watauga County
Dear Applicant:
NORTH CAROLINA
Environmental Quality
March 23, 2022
The Water Quality Permitting Section acknowledges the March 23, 2022 receipt of your permit renewal application and
supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting
branch. Per G.S. 150B-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://deq. nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
cc: Paul Isenhour-WQ Lab & Operations, Inc.
ec: WQPS Laserfiche File w/application
Sincerely, 3�m 6�42c�
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
DEQ
North Carolina Department of Environmental Quality 1 Division of Water Resources
Winston-Salem Regional Office 1 450 West Hanes Mill Road, Suite 300 1 Winston-Salem North Carolina 27105
336.776.9800

North Carolina
Department of Environmental Quality
Division of Water Resources
MILL RIP51-�
Modified Application Form 2A
Revised March 2021
Modified Application
Form 2A
Minor Sewage Facilities < 0.1 MGD
and No Pretreatment Program
NPDES Permitting Program
Note: Complete this form if your facility is a MINOR new or existing publicly owned treatment works.

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO030473
Milll Ridge WWTP
Modified March 2021
Form
NC Department of Environmental Quality - Application for NPDES Permit to Discharge Wastewater
MINOR SEWAGE FACILITIES (Before completing this form, please read the instructions. Failure to follow
NPDES
the instructions mpy result in denial of the application.
SECTION•N
INFORMATION FOR i
Facility name
1.1
Mill Ridge Development WWTP
Mailing address (street or P.O. box)
229 Clubhouse Drive
City or town
State
ZIP code
o
Banner Elk
NC
28604
E
Contact name (first and last)
Title
Phone number
Email address
c
Penny Hodge
Administrator
[phone]
[e-mail]
_
Location address (street, route number, or other specific identifier) ❑✓ Same as mailing address
U
f6
LL
City or town
State
ZIP code
1.2
Is this application for a facility that has yet to commence discharge?
❑ Yes 4 See instructions on data submission 0 No
requirements for new dischargers.
1.3
Is applicant different from entity listed under Item 1.1 above?
0 Yes ❑ No 4 SKIP to Item 1.4.
Applicant name
Water Quality Lab and Operations, Inc.
=
Applicant address (street or P.O. box)
P.O. Box 1167
E
0
City or town
State
ZIP code
w
Banner Elk
NC
28604
M
Contact name (first and last)
Title
Phone number
Email address
EL
Paul Isenhour
President
[phone]
waterqualitylabs@yahoo
n
a
1.4
Is the applicant the facility's owner, operator, or both? (Check only one response.)
❑ Owner ❑✓ Operator ❑ Both
1.5
To which entity should the NPDES permitting authority send correspondence? (Check only one response.)
❑ Facility Applicant ❑ Facility and applicant
(they are one and the same)
1.6
Indicate below any existing environmental permits. (Check all that apply and print or type the corresponding permit
number for each.
Existing Environmental Permits
✓❑ NPDES (discharges to surface
❑ RCRA (hazardous waste)
❑ UIC (underground injection
water)
control)
d
E
NCO030473
P
❑ PSD (air emissions)
❑ Nonattainment program (CAA)
❑ NESHAPs (CAA)
w
rn
N
❑ Ocean dumping (MPRSA)
❑ Dredge or fill (CWA Section
❑ Other (specify)
w
404)
Page 1

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO030473
Milll Ridge WWTP
Modified March 2021
1.7
Provide the collections stem information
requested below for the treatment works.
Municipality
Population
Collection System Type
Status
Served
Served
indicatepercentage)Ownership
Resedential
427
100 % separate sanitary sewer
❑ Own 0 Maintain
Homes
% combined storm and sanitary sewer
ElOwn ElMaintain
2-1
0
ElUnknown
❑ Own ❑ Maintain
% separate sanitary sewer
❑ Own [I Maintain
c
2
% combined storm and sanitary sewer
❑ Own ❑ Maintain
❑ Unknown
❑ Own ❑ Maintain
a%
separate sanitary sewer
❑ Own ElMaintain
_
% combined storm and sanitary sewer
❑ Own ❑ Maintain
❑ Unknown
❑ Own ❑ Maintain
d%
separate sanitary sewer
❑ Own ❑ Maintain
N%
combined storm and sanitary sewer
❑ Own ❑ Maintain
c
❑ Unknown
❑ Own ❑ Maintain
0
Total
427
2
Population
�
Served
Separate Sanitary Sewer System
Combined Storm and
Sanitary Sewer
Total percentage of each type of
100 %
°
sewer line in miles)�°
z'
1.8
Is the treatment works located in Indian Country?
3
0
U
ElYes 0 No
1.9
Does the facility discharge to a receiving water that flows through Indian Country?
❑ Yes 21 No
1.10
Provide design and actual flow rates in the designated spaces.
Desi n Flow Rate
0.052 mgd
w
Annual Average Flow Rates Actual
y
Two Years Ago
Last Year
This Year
0
0.0238 mgd
0.0370 mgd
0.0306 mgd
Maximum Daily Flow Rates Actual
Two Years Ago
Last Year
This Year
0.073 mgd
0.08 mgd
0.078 mgd
H
1.11
Provide the total number of effluent discharge points to waters of the State of North Carolina by type.
Total Number of Effluent Discharge Points by Type
a c
Combined Sewer
Constructed
Treated Effluent
Untreated Effluent
Bypasses
Emergency
CI
Overflows
t/1
�
1
Page 2

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO030473
Milll Ridge WWTP
Modified March 2021
Outfalls Other Than to Waters of the State of North Carolina
1.12
Does the POTW discharge wastewater to basins, ponds, or other surface impoundments that do not have outlets
for discharge to waters of the State of North Carolina?
❑ Yes ❑✓ No 4 SKIP to Item 1.14.
1.13
Provide the location of each surface impoundment and associated discharge information in the table below.
Surface Im oundment Location and Dischar a Data
Average Daily Volume
Continuous or Intermittent
Location
Discharged to Surface
(check one)
Impoundment
❑ Continuous
gpd
❑ Intermittent
❑ Continuous
gpd
❑ Intermittent
gpd
❑ Continuous
1A
❑ Intermittent
w
1.14
Is wastewater applied to land?
❑ Yes 0 No -+ SKIP to Item 1.16.
c
1.15
Provide the land application site and discharge data requested below.
CL y
Land Application Site and Discharge Data
o
Average Daily Volume
Continuous or
Location
Size
Applied
Intermittent
a,
check one
s
acres
gpd❑
❑ Continuous
c
Intermittent
acres
d
gpd
❑ Continuous
w
❑ Intermittent
a
acres
gpd
❑ Continuous
❑ Intermittent
1.16
Is effluent transported to another facility for treatment prior to discharge?
o
ElYes ❑✓ No 4 SKIP to Item 1.21.
1.17
Describe the means by which the effluent is transported (e.g., tank truck, pipe).
1.18
Is the effluent transported by a party other than the applicant?
❑ Yes ❑ No -* SKIP to Item 1.20.
1.19
Provide information on the transporter below.
Trans orter Data
Entity name
Mailing address (street or P.O. box)
City or town
State
ZIP code
Contact name (first and last)
Title
Phone number
Email address
Page 3

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO030473
Milli Ridge WWTP
Modified March 2021
1.20
In the table below, indicate the name, address, contact information, NPDES number, and average daily flow rate of the
facility.
-receiving
Receiving IF cility Data
a
Facility name
Mailing address (street or P.O. box)
d
3
City or town
State
ZIP code
0
Contact name (first and last)
Title
0
d
Phone number
Email address
cNPDES
number of receiving facility (if any) ❑ None
Average daily flow rate mgd
N
0
1.21
Is the wastewater disposed of in a manner other than those already mentioned in Items 1.14 through 1.21 that do
0
not have outlets to waters of the State of North Carolina (e.g., underground percolation, underground injection)?
L
❑ Yes No 4 SKIP to Item 1.23.
0
1.22
Provide information in the table below on these other disposal methods.
Information on Other Disposal Methods
o
Disposal
Location of
Size of
Annual Average
Continuous or Intermittent
Method
Disposal Site
Disposal Site
Daily Discharge
(check one)
Description
Volume
H
❑ Continuous
w
acres
gpd
❑ Intermittent
ElContinuous
acres
gpd
❑ Intermittent
acres
gpd
❑ Continuous
❑ Intermittent
1.23
Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(n)? (Check all that apply.
„ w
Consult with your NPDES permitting authority to determine what information needs to be submitted and when.)
R 4
❑ Discharges into marine waters (CWA ❑ Water quality related effluent limitation (CWA Section
Cr
Section 301(h)) 302(b)(2))
❑� Not applicable
1.24
Are any operational or maintenance aspects (related to wastewater treatment and effluent quality) of the treatment works
the responsibility of a contractor?
❑✓ Yes ❑ No +SKIP to Section 2.
1.25
Provide location and contact information for each contractor in addition to a description of the contractor's operational
and maintenance responsibilities.
Contractor Information
Contractor 1
Contractor 2
Contractor 3
c
Contractor name
Water Quality Labs
EMailing
`o
-(companyname
address
c
street or P.O. box
P.O. Box 1167
S
City, state, and ZIP
Banner Elk, INC 28604
code
tact name (first and
Conc�
last)
Paul Isenhour
Phone number
[phone]
Email address
[e-mail]
Operational and
Operations & Maintenance
maintenance
responsibilities of
contractor
Page 4

NPDES Permit Number Facility Name Modified Application Form 2A
NCO030473 Milll Ridge WWTP Modified March 2021
SECTI•N 2. ADDI• •' • I
o Outfalls to Waters of the State of North Carolina
2.1
Does the treatment works have a design flow greater than or equal to 0.1 mgd?
a�
o
❑ Yes ❑r No 4 SKIP to Section 3.
0
2.2
Provide the treatment works' current average daily volume of inflow
Average Daily Volume of Inflow and Infiltration
R
and infiltration.
gpd
Indicate the steps the facility is taking to minimize inflow and infiltration.
R
0
O
w
C
s
2.3
Have you attached a topographic map to this application that contains all the required information? (See instructions for
CL
cu a
specific requirements.)
rn i°
o
0
0
El Yes E] No
E
2.4
Have you attached a process flow diagram or schematic to this application that contains all the required information?
o R
(See instructions for specific requirements.)
—
o
❑ Yes ❑ No
2.5
Are improvements to the facility scheduled?
❑ Yes ❑ No 4 SKIP to Section 3.
Briefly list and describe the scheduled improvements.
0
v
1.
d
E
d
c.
2.
E
w
0
y
d
3.
4)
4.
R
2.6
Provide scheduled or actual dates of completion for improvements.
Scheduled or Actual Dates of Completion for Im rovements
E
Scheduled
Affected
Begin
End
Begin
Attainment of
>
a
Improvement
Outfalls
Construction
Construction
Discharge
Operational
CL E
—
(from above)
(list o number)
(MM/DD/YYYY)
(MM/DD/YYYY)
(MM/DD/YYYY)
Level
MM/DD/YYYY
d
d
U
N
2.
3.
4.
2.7
Have appropriate permits/clearances concerning other federal/state requirements been obtained? Briefly explain your
response.
❑ Yes ❑ No ❑ None required or applicable
Explanation:
Page 5

NPDES Permit Number
Facility Name Modified Application Form 2A
NC0030473
Milli Ridge WWTP Modified March2021
SECTION•'
• ON I
1 to
for each outfall. (Attach additional sheets if you have more than three outfalls.)
3.1
Provide the following information
Outfall Number 001
Outfall Number
Outfall Number
State
North Carolina
R
County
Watauga
.r
3
0
I
City or town
Banner Elk
0
s .Q
Distance from shore
ft.
ft.
ft.
Depth below surface
ft.
ft.
ft.
0
Average daily flow rate
0.0305 mgd
mgd
mgd
Latitude
Longitude
o
o' '"
3.2
Do any of the outfalls described under Item 3.1 have seasonal or periodic discharges?
o
❑ Yes r❑ No 4 SKIP to Item 3.4.
3.3
If so, provide the following information for each applicable outfall.
N
Outfall Number
Outfall Number
Outfall Number
0
Number of times per year
0
discharge occurs
n
Average duration of each
`0
discharge (specify units
oAverage
flow of each
mgd
mgd
mgd
N
discharge
A
in
Months in which discharge
occurs
3.4
Are any of the outfalls listed under Item 3.1 equipped with a diffuser?
[D Yes ❑ No 4 SKIP to Item 3.6.
3.5
Briefly describe the diffuser t pe at each applicable outfall.
Outfall Number 001
Outfall Number
Outfall Number
Forced Air Diffuser
0
vi
3.6
Does the treatment works discharge or plan to discharge wastewater to waters of the State of North Carolina from
CD
one or more discharge points?
w
❑✓ Yes ❑ No 4SKIP to Section 6.
Page 6

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO030473
Milll Ridge WWTP
Modified March 2021
3.7
Provide the receiving water and related information if known for each outfall.
Outfall Number OUP
Outfall Number
Outfall Number
Receiving water name
Watauga River
Name of watershed, river,
0
or stream system
Watauga River
U.S. Soil Conservation
H
Service 14-digit watershed
o
code
L
Name of state
management/river basin
Watauga River Basin
S
U.S. Geological Survey
8-digit hydrologic
cataloging unit code
Critical low flow (acute)
cfs
cfs
cfs
Critical low flow (chronic)
cfs
cfs
cfs
Total hardness at critical
mg/L of
mg/L of
mg/L of
low flow
CaCO3
CaCO3
CaCO3
3.8
Provide the following information
describing the treatment pr vided for discharges from each outfall.
Outfall Number 001
Outfall Number
Outfall Number
Highest Level of
❑ Primary
❑ Primary
❑ Primary
Treatment (check all that
❑ Equivalent to
❑ Equivalent to
❑ Equivalent to
apply per outfall)
secondary
secondary
secondary
El Secondary
❑ Secondary
❑ Secondary
❑ Advanced
❑ Advanced
❑ Advanced
❑ Other (specify)
❑ Other (specify)
❑ Other (specify)
0
Q
Design Removal Rates by
Outfall
M
d
BOD5 or CBOD5
85 %
%
%
C
d
E
w.
d
TSS
85 %
%
%
H
0 Not applicable
❑ Not applicable
❑ Not applicable
Phosphorus
%
%
%
0 Not applicable
❑ Not applicable
❑ Not applicable
Nitrogen
%
%
%
Other (specify)
0 Not applicable
❑ Not applicable
❑ Not applicable
Page 7

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO030473
Milli Ridge WWTP
Modified March 2021
3.9
Describe the type of disinfection used for the effluent from each outfall in the table below. If disinfection varies by
season, describe below.
UV Disinfection
m
c
w
c
0
U
Outfall Number
Outfall Number
Outfall Number
o
Q
Disinfection type
U
N
07
Seasons used
d
E
..
CU
Dechlorination used?
❑ Not applicable
❑ Not applicable
❑ Not applicable
f-
❑ Yes
❑ Yes
❑ Yes
❑ No
❑ No
❑ No
3.10
Have you completed monitoring for all Table A parameters and attached the results to the application package?
0 Yes ❑ No
3.11
Have you conducted any WET tests during the 4.5 years prior to the date of the application on any of the facility's
discharges or on any receiving water near the discharge points?
❑ Yes El No 4 SKIP to Item 3.13.
3.12
Indicate the number of acute and chronic WET tests conducted since the last permit reissuance of the facility's
by outfall number or of the receiving water near the discharge points.
-discharges
Outfall Number
Outfall Number
Outfall Number
Acute
Chronic
Acute
Chronic
Acute
Chronic
ca
Number of tests of discharge
rn
water
Number of tests of receiving
=
water
d
w
3.14
Does the POTW use chlorine for disinfection, use chlorine elsewhere in the treatment process, or otherwise have
reasonable potential to discharge chlorine in its effluent? N JA A f iv&,1q' Pbv /
El Yes -* Complete Table B, including chlorine. ✓❑ No 4 Compete Table B, omitting chlorine.
3.15
Have you completed monitoring for all applicable Table B pollutants and attached the results to this application
package? NJIA Ave ko der -sly) 016 W
❑ Yes r❑ No
Have you completed monitoring for all applicable Table D pollutants required by your NPDES permitting authority and
3.18
attached the results to this application package?
❑ Yes No additional sampling required by NPDES
permitting authority.
Page 8

NPDES Permit Number
Facility Name
Modified Application Form 2A
NCO030473
Milll Ridge WWTP
Modified March 2021
3.19
Has the POTW conducted either (1) minimum of four quarterly WET tests for one year preceding this permit application
or (2) at least four annual WET tests in the past 4.5 years?
❑ Yes ❑ No 4 Complete tests and Table E and SKIP to
Item 3.26.
3.20
Have you previously submitted the results of the above tests to your NPDES permitting authority?
❑ Yes ❑ No 4 Provide results in Table E and SKIP to
Item 3.26.
3.21
Indicate the dates the data were submitted to our NPDES permitting authority and provide a summary of the results.
Date(s) Submitted
Summary of Results
MMIDDNYYY
v
as
c
w
c
O
cc
3.22
Regardless of how you provided your WET testing data to the NPDES permitting authority, did any of the tests result in
o
toxicity?
❑ Yes ❑ No 4 SKIP to Item 3,26.
w
3.23
Describe the cause(s) of the toxicity:
c
d
LU
w
3.24
Has the treatment works conducted a toxicity reduction evaluation?
❑ Yes ❑ No + SKIP to Item 3.26.
3.25
Provide details of any toxicity reduction evaluations conducted.
3.26
Have you completed Table E for all applicable outfalls and attached the results to the application package?
❑ Yes ❑ Not applicable because previously submitted
information to the NPDES permitting authority.
Page 9

NPDES Permit Number
Facility Name Modified Application Form 2A
NCO030473
Milll Ridge WWTP Modified March 2021
SECTION.
• 1
In Column 1 below, mark the sections of Form 2A that you have completed and are submitting with your application. For
6.1
each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all applicants are required to provide attachments.
Column 1
Column 2
❑ Section 1: Basic Application
❑ w/ variance request(s) ❑ wl additional attachments
Information for All Applicants
❑ Section 2: Additional
❑ w/ topographic map ❑ wl process flow diagram
Information
❑ wl additional attachments
Fel w/ Table A ❑ wl Table D
❑ Section 3: Information on
❑ wl Table B ❑ wl additional attachments
Effluent Discharges
E
❑ w/ Table C
R
W
Section 4: Not Applicable
a
0
R
Section 5: Not Applicable
d
U
R
❑ Section 6: Checklist and
0 w/ attachments
Certification Statement
Y
6.2
Certification Statement
U
1 certify under penalty of law that this document and all attachments were prepared under my direction or supervision in
accordance with a system designed to assure that qualified personnel properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible
for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and
complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine
and imprisonment for knowing violations.
Name (print or type first and last name)
Official title
f-el I IS
l
L.
e.ek
Signature
Date signed
M
Page 10

NPDES Permit Number Facility Name
NCO030473 Milh Ridge WWTP
Outfall Number Modified Application Form 2A
Modified March 2021
.:
s• "
Maximum Daily Discharge
Average Daily Discharge
Analytical ML or MDL
Value
Units
Value
Units
Number of
Pollutant
Methods include units
( )
Samples
Biochemical oxygen demand
o BODs or a CBODs
12.6
mg/L
3.377
mg/L
156 SM-5210B
El ML
2 O MDL
(report one
Fecal coliform
300
cfu/100mL
16.385
cfu/100mL
156 SM-9222D
1 O MDL
Design flow rate
0.08
MGD
0.0305
MGD
Continuous
pH (minimum)
6.3
s/u
pH (maximum)
8.0
s/u
Temperature (winter)
15.0
Degrees Celsius
8.46
Degrees Celsius
60
Temperature (summer)
22
Degrees Celsius
16.79
Degrees Celsius
84
Total suspended solids (TSS)
14
mg/L
2.34
mg/L
156 SM-2540D
2.5 O MDL
I Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I, subchapter N or 0. See instructions and 40 CFR 122.21(e)(3).
Page 11