NC0021644_Permit (Issuance)_20001009

NPDES DOCUMENT !;CANNING COVER SHEET
NC0021644
La Grange WWTP
NPDES Permit:
Document Type:
Permit Issuance`
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
October 9, 2000
Thies document is printed on reuse paper - ignore any
content on the reYerse side

4,
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
October 9, 2000
Mike Taylor
Town of La Grange
P.O. Box 368
120 East Railroad Street
La Grange, North Carolina 237551
NCDENR
Subject: FINAL -- NPDES Permit No. NC0021644
La Grange Wastewater Treatment Plant
Lenoir County
Dear Mr. Taylor:
The Division has reviewed and approved your permit renewal application, originally
received August 8, 1998. 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 May 9, 1994, or as subsequently amended. The
NPDES Unit staff considered existing guidelines and recently adopted rules related to the Neuse
River Nutftent-Sensitive Waters Management Strategy prior to incorporating the following
revisions into this permit:
1. The Division has provisionally waived instream monitoring contingent on your
membership in the Lower Neuse River Basin Association (LNBA). If you should
terminate your membership for any reason, the instream requirements outlined in the
permit shall be immediately reinstated.
2. The Division has revised your effluent -monitoring requirements for nitrogen and
phosphorous, in accordance with the recently adopted Neuse River Nutrient -Sensitive
Waters Management Strategy.
3. Lastly, this permit includes Special Conditions requiring the Permittee to provide
a Wastewater Management Plan and subsequent Annual I,1 f Tow and Infiltration (1/1)
Upgrade Progress Report. The Permittee shall submit the plan to the Division no later
than 180 days after the effective date of this permit, and the first annual report is due
270 days after the permit effective date (See Effluent Limitations, Monitoring
Requirements, and Special Conditions).
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1 61 7 - TELEPHONE [phone]/FAX 919-733-
0719, AN EQUAL OPPORTUNITY AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/10% POST -CONSUMER PAPER. VISIT US ON
THE INTERNET @ http://h2o.enr.state.nc.us/NPDES

La Grange Wastewater Treatment Plant.
Permit No. NC0021644
Page 2
Your facility discharges to waters within the Neuse River drainage basin. All streams within
this basin have been designated nutrient sensitii•e waters (NSW) as a result of environmental
problems including algal -blooms in the estuary. The North Carolina Environmental Management
Commission recently adopted rules establishing the Neuse River Basin Nutrient -Sensitive Waters
Management Strategy to reduce phosphorus and nitrogen inputs. The related point source rule
(15A NCAC 2B.0234) intends to reduce, by 30%, total nitrogen (TN) discharges by the year
2003. Because of this, revised nutrient limits have been imposed on dischargers.
It is important to note that, beginning with the calendar year 2003, nitrogen removal under
this permit will most likely require upgraded biological processes. Effluent nitrogen levels
reported in your 1999 DMRs suggest an Annual Mass Loading of 15,220 pounds per year
(conservatively assuming nitrogen @ 10 mg/L and flow @ 0.500 MGD). This is roughly 1.8
times your LNBA allocation of 8,447 pounds per year, and will certainly require additional
biological treatment to reduce nitrogen. Therefore, the Division encourages you have appropriate
system upgrades in place before the year 2003.
If any parts, measurement frequencies, or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within
thirty (30) days following receipt of this letter. This request must be in the form of a written
petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the
office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-
6714). Unless such a demand is made, this permit shall be final and binding.
Please notice that this permit is not transferable except after notifying the Division of Water
Quality. The Division of Water Quality may require modification, or revocation and re -issuance
of this permit. This permit does not affect the permittee's legal obligation to obtain other permits
which may 42e required by the Division of Water Quality, the Division of Land Resources, the
Coastal Area Management Act, or any other federal or local government.
If you have questions concerning this permit, please contact Joe Corporon at (919) 733-
5083, extension 597.
Yours respectfully,
ORIGINAL SIGNED BY
KERR T. STEVENS
Kerr T. Stevens
cc: Central Files
Washington Recdonal Office, Water Quality Section
Point Source Compliance and Enforcement Unit
Technical Assistance & Certification Unit
vasma
Marion Smit . Ncuse River Foundation
P.O. Box 15451
New Bern, NC 28561

Permit NC0021644
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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,
Town of La Grange
is hereby authorized to discharge wastewater from a facility located at
La Grange Wastewater Treatment Plant
East King Street
La Grange, NC
Lenoir County
to receiving Tbaters designated as an unnamed tributary of Moseley Creek within the
Neuse River Basin in accordance with effluent limitations, monitoring requirements,
and other conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective November 1, 2000
This permit and authorization to discharge shall expire at midnight on June 30, 2003.
Signed this day October 9, 2000
ORIGINAL SIGNED BY
KERR T. STEVENS
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission

• Permit NC0021644
SUPPLEMENT TO PERMIT COVER SHEET
Town of La Grange
is hereby authorized:
1. to continue discharging 0.750 MGD of treated, 100%-domestic wastewater from a
treatment facility consisting of:
• manual grit remover;
• automatic bar screen;
• influent flow measurement by Parshall flume ultra sonic with remote recording;
• two former sludge disposal lagoons, currently used as equalization basins with lift
pumps to the oxidation ditch;
• biological treatment (activated sludge) in two parallel, mechanically -aerated oxidation
ditches (two -each, submersible velocity mixers -- total 4);
• three parallel secondary clarifiers with scum removal and gravity sludge return;
• three parallel low -rate sand filters for tertiary treatment;
• effluent flow measured by V-notch weir and ultra sound with remote recorder;
• chlorine contact chamber with flow -paced chlorine feed (gas);
• dechlorinate with sulfur dioxide; and
• post aeration (fixed mechanical aerator)
located at the La Grange WWTP, East King Street, La Grange, Lenoir County, and;
2. to discharge from said wastewater treatment works at Outfall 001 into an unnamed
tributary of Moseley Creek (see attached map), a stream classified as C-Sw-NSW waters
within the Neuse River Basin.

Town of La Grange WWTP
State Grid/Ztuad:
Latitude:
Longitude
Receiving Streaur
Stream Clam
F 27 SE / La Grange, NC
35° 18' 45" N
77° 46' 32" W
UT of Moseley Creek
C - Sw - NSW
Permitted Flow: 0.750 MGD
Drainage Basin: Neuse River Basin
Sub -Basin: 03-04-05
NPDES Permit NC0021644
Lenoir County

NPDES Permit No. NC0021644
• A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee is authorized
to discharge 0.750 MGD of treated domestic wastewater through Outfall 001. Such discharges shall be limited
and monitored by the Permittee as specified below:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS1
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location'
Flow
0.750 MGD
Continuous
Recording
E or I
BOD5 , 20° C (Apr 1 — Oct 31) 2
5.0 mg/L
7.5 mg/L
Daily
Composite
E, I
BOD5 , 20° C (Nov 1 — Mar 31) 2
10.0 mg/L
15.5 mg/L
Daily
Composite
E, I
Total Suspended Residue (TSR) 2
30.0 mg/L
45.0 mg/L
Daily
Composite
E, I
Fecal Coliform 3
200 / 100 ml
400 / 100 ml
Daily
Composite
E
NH3 as N (April 1- October 31)
2.0 mg/L
Daily
Composite
E
NH3 as N (November 1 — March 31)
4.0 mg/L
Daily
Composite
E
Total Residual Chlorine
17 µg/L
Daily
Grab
E
pH 3
Daily
Grab
E
Dissolved Oxygen'
Daily
Grab
E
Temperature
Daily
Grab
E
Total Nitrogen
(NO2-N + NO3-N + TKN) 6
No Effluent Limit (mg/L)
No Effluent Limit (lbs/month)
8,447 lbs/year
(Annual Mass Loading) 7
Weekly
Monthly
AnnuallyCalculated
Composite
Calculated
E
E
E
Total Phosphorus
2.0 mg/L (quarterly average) 8
Weekly
Composite
E
Temperature 9 4.
VariableGrab
U, Di, D,
Dissolved Oxygen 9
Variable10
Grab
U, Di , D2
Footnotes:
1. E = effluent; I = influent; U = upstream (at NCSR 1540); DI = downstream at NSCR 1518;
D2 = downstream at NCSR 1327
2. Monthly average effluent values for Biochemical Oxygen Demand (BOD5) and TSR shall not exceed 15% of the
respective influent values (i.e. 85% removal).
3. Calculate Fecal Coliform using the geometric mean (see procedure Part 11. Section A ,Paragraph 9b)
4. pH of wastewater shall not be less than 6.0 nor shall it exceed 9.0 standard units.
5. Dissolved oxygen daily average effluent concentration shall not fall below 5.0 mg/L
6. See Special Condition A.(2), Total Nitrogen Monitoring.
7. Annual Mass Loading limit for total nitrogen shall become effective beginning on January 1, 2003 unless it is
provisionally waived (See Special Condition A.(3), Annual Limits for Total Nitrogen.)
8. The quarterly average for total phosphorus shall be the average of composite samples collected weekly during the
calendar quarter (January -March, April -June, July -September, October -December).
9. Monitoring upstream (U) and downstream (DI and D2) are provisionally waived, based on membership in the Lower
Neuse River Basin Association (LNBA). If at any time during the term of this permit, membership in the LNBA is
terminated, the Permittee shall notify the Division immediately, and immediately conduct instream monitoring as
stipulated in this permit.
10. Variable Frequency — collect instream samples three times per week (3/week) during the months of June through
September and once per week (1/week) during the months of October through May.
• Effluent shall contain no floating solids or foam visible in other than trace amounts.

NPDES Permit No. NC0021644
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS— Continued
Units:
BOD = biochemical oxygen demand
MGD = million gallons per day;
NH3= ammonia
TSR = total suspended residue
ml = milliliters
mg/L = milligrams per liter
µg/L = micrograms per liter
lbs/month = pounds per month
lbs/year = pounds per year
A. (2.) TOTAL NITROGEN MONITORING
The Permittee shall calculate the annual mass loading of total nitrogen as the sum of monthly loadings, according
to the following equations:
(a) Monthly Mass Loading (lbs/month) = TN x Q x 8.34
where:
TN = the average total nitrogen concentration (mg/L) of the grab samples collected during
the month
Q = the total wastewater flow discharged during the month (MG/month)
8.34 = conversion factor, from (mg/L x MG) to pounds
(b) Annual Mass Loading (lbs/year) = E (Monthly Mass Loadings) for the calendar year
The Permittee shall report the total nitrogen concentration for each sample and the monthly mass loading
in the appropriate self -monitoring report and the annual mass loading of total nitrogen in the December
self -monitoring report for the year.
A. (3.) ANNUAL LIMITS FOR TOTAL NITROGEN
(a) The Neuse Nutrient Management Strategy rule for point sources (1) provides that annual mass limits
for total nitrogen shall be included in the permits for all dischargers with permitted flows (as
defined in the Strategy) greater than or equal to 0.5 MGD, and that those nitrogen limits (including
the limits in this permit), shall become effective with the calendar year beginning on January 1,
2003.
(b) The Neuse rule also provides that members of a group compliance association shall not be subject to
individual annual mass limits for total nitrogen. At the time of permit issuance, the Permittee had
expressed interest in joining such an association. Accordingly,
(I) the total nitrogen limit in Condition A(1) of this permit is deemed waived provided
that the following conditions are met:

NPDES Permit No. NC0021644
(i) a formal agreement between the association and Environmental
Management Commission, as outlined in 15A NCAC 2B. 0234, is
established and is in effect; and
(ii) the Permittee is a party to said agreement; and
(iii) the association and the Permittee substantially conform with the
agreement.
(2) So long as the total nitrogen limit in Condition A(1) is waived, the group nitrogen
allocation established pursuant to the agreement referenced above and any subsequent
amendments is hereby incorporated as an enforceable part of this permit.
(c) If the Division determines, at any time during the term of this permit, that these conditions are not
being met, it shall notify the Permittee in writing of this determination and of its basis. The
consequence .of such a determination shall be that the Permittee's annual mass limit for total
nitrogen and its effective date shall be reinstated immediately. The Division shall accept and
consider written responses received from the Permittee and/or the association within thirty (30) days
of the original notice before making a final decision and will provide that decision in writing.
(d) The Permittee shall notify the Division in writing within five (5) working days if, at any time during
the term of this permit, the Permittee elects not to join the association, or if it withdraws or
otherwise loses its membership in the association. Notification shall be sent to:
Footnote:
11)
NC DENR / Division of Water Quality / NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Neuse River Basin — Nutrient -Sensitive Waters Management Strategy: Wastewater Discharge
Requirements (15A NCAC 2B. 0234).
A. (4.) WASTEWATER MANAGEMENT PLAN
No later than 180 days after the effective date of this permit, the Permittee shall submit to the Division a
wastewater management plan. The plan shall include, at a minimum, the following elements:
o Facilities Assessment. Describe deficiencies and operational difficulties in the existing
collection system or treatment facility, which affect performance or permit compliance, and
identify potential improvements to correct those. At a minimum, evaluate the following
considerations:
• inflow and infiltration, and
• diversion of wasteloads during peak flows.
Optimization Plan. Develop a strategy to optimize, rehabilitate, expand and/or replace the
collection system to achieve optimum performance. Identify specific measures and key tasks,
including those in the above facilities assessment, and provide an estimated schedule for
completion of each.

NPDES Permit No. NC0021644
EFFLUENT LIMITATIONS, MONITORING REQUIREMENTS,
AND SPECIAL CONDITIONS
A. (5.) ANNUAL REPORT -- INFLOW AND INFILTRATION UPGRADE
Due 270 days after the effective date of this permit, the Permittee shall submit the first Annual Inflow
and Infiltration (UI) Upgrade Progress Report to address, at a minimum, the following:
o Actions Completed During the Last Year
o Engineering Certifications for Completed Actions
❑ Actions Proposed for the Next Year
❑ Problems and Obstacles Encountered During this Year
o Recommended Solutions to Encountered Problems and Obstacles
Following review and approval of the Wastewater Management Plan or any Annual Report, the content
and/or frequency of the Annual Reports may be revised at the discretion of the Division of Water
Quality.

FILE CONTENTS:
Left Side:
❑ New Tracking Slip.
Old Tracking Slip.
Er Draft Checklist
Right Side:
NPDES
FINAL
CHECK LIST
Facility
Permit No.
NPDES Permit Writer:
Date:
❑ Streamline Package Sheet
Er-- Draft Permit Cover Letter.
Er' Draft Permit
Facility Map
Er- Fact Sheet.
Permit Writer's Notes
CY` Staff Report from Region
C3 Comments on Draft?
EIV Old Permit
Er Permit Application.
Err Acknowledgement Letter
❑ Permittee Responses
LAY Waste Load Allocation
k-0 I p
Q_ i c,44
(to region, onl, if streamlined)
(add new4) icy text; summarize major changes to permit)
(order: cover, supplement, map, effluent sheets, special conditions)
(E-Map: Include facility; Outfall; U and D sample locations)
(document permit writer's issues and re -issue logic)
(if not in Facts Sheet; chronology, strategy, DMR Review, RPA, etc.)
(as appropriate; not needed if streamlined)
p v L L t L I- Q2 N6— . c fr 4 '7
(Text, Effluent Sheets and Special Conditions)
(New Permit or Renewal; any additional permittee correspondence)
(from NPDES Unit)
(to acknowledgement letter, if any)
(Recalculated for current action?)
Notes: Italics indicate items may not be required or applicable. Only one copy of the Application to Renew should
be in the file, unless other versions have different information. Any direct duplicates should be recycled. All permit
writers notes should be compiled together.
STAMPS:
❑ EPA
❑ DEH
❑ ASTU
❑ MECKLENBURG or WAKE
for majors
for WA and SA waters
for WET tests
for these counties

City of La Grange
La Grange WWTP
Permit No. NC0021644
FILE CONTENTS:
Lef de:
c Tracking Slip.
❑ompliance Slip.
CHECKLIST
DRAFT PERMIT FILE
l`k/41
Public Notice Date:
Issuance Date: 194 J
Right side:
❑ Streamline Package Sheet (to be sent to region, only if streamlined)
waft Letter. (only necessary to explain major changes to permit)
raft Permit (order: cover, supplement, map, effluent sheets, special conditic
Q' Fact Sheet. (document permit writer's issue or re -issue logic)
Staff Report from Region (not with streamlined)
O Permit Writer's Notes (i.e. reasonable potential calculations, etc.)
1 DMR data. From Central files (or off of GKPR)
Cl/Old Permit Effluent Sheets & Special Conditions (if streamlined or simple renewal)
L� Acknowledgement Letter from P & E.
❑ ermittee Respons s (to acknowledgement letter, if any)
'��d PCermit Application (any permittee correspondence with application)
❑ 1d Tracking Slip.
(4- ��Q waste Load Allocation
Facility Map
Italics indicate that these items may not be required or applicable. Any direct duplicates
should be recycled. Only one copy of the application should be in the file, unless different
information is on application sheets. All permit writers notes should be compiled onto one
or two sheets, if possible.
/Peer Review Initiated
Peer Review Completed e)10 • ,�1
Er Sent to Regional Office for Review
Phone No.:
❑ Submitted to Christie fo
O Final Permit Issued
C by v ei l" O� 1 `
�� 5-c (o Lkk ((A6'C-- (-�

t
PERMITTING CHRONOLOGY
Joe Corporon
Town of LaGrange WWTP
• 29Mar00 -- Started file review, finished DRAFT permit, Eff page and Fact Sheet;
• 30Mar00 -- to Central Files. PROBLEM: there are no 1998, 1999 DMRs, no County "correspondence
files", therefore no application to renew, no staff reports, and NO OUT CARDS!
• 31Mar00 -- found files (returned to CF). Joe finished Fact Sheet, and cover letter;
• 03Apr00 -- submitted to Mike for peer review.
• 04Apr00 -- Received file back from Mike; made corrections; issue RE: Class of facility (III or IV)
prompted call to Tom Arnold. Tom said, "...III not IV (TP removal chemical, not biological), but @
new Eff limits, will be N.
• 05Apr00 -- e-mailed draft, Fact Sheet, and eff page to Kristin Jarmin for review and comment
• 06Apr00 -- Kristin called back said she wanted to discuss new staff report w/ supr. ; discussed draft
corrections and issues. Expect staff report--14Apr (will not hold up draft, per Dave).
• 07Apr00 -- finished corrections; called Mike Taylor, Town Manager RE: Public hearing and draft
permit.
• 10Apr00/17:25 -- made corrections including input from Kristin; Draft to Dave for last review.
• 11Apr00 -- minor corrections; to Christie for copying and distribution (already noticed due to public
hearing)
• 04May00/19:00 -- Public hearing RE: Lower Neuse River Basin, New Burn.
• 23May00 -- met w/ Lloyd, Dave, Mike T., and Jackie RE hearing write-up;
• 16Jun00 -- upgraded "comments to hearing officer" ; submitted to Mike T. for Boyd's review.
• 040ct00 -- received final comments -- revised permit as FINAL according to Summary and
Recommendations; Called Kristin Jarman w/ questions RE: 1) Status of Sludge Mgmt. Plan; and 2)
Clarifiers "2 or 3"? Submitted FINAL to Dave for review and signature.
• 050ct00 -- Kristin called to say that La Grange "has not received DRAFT"; I called back . We
discussed the probability that they expected a permit sooner than this because of the delay in the
"hearing review" process, and they don't realize that they are really waiting for a FINAL. Joe called
Mike Taylor (town MGR ) to confirm/left message to call back.
• 060ct00 -- faxed unsigned FINAL to Mike Taylor for review (10:30 hrs); to respond before close of
business today. Also E-mailed FINAL to Kristin Jarmin.
• 090ct00 -- Mike Taylor called Joe to say "...no problems with draft..."; received minor corrections
from Dave, to include "change Quarterly report to Annually"; Kristin called back w/ minor corrections
to facility equipment list. Made final corrections; faxed to Mike Taylor ; submitted FINAL file to
Charles for distribution to Tommy. DONE

Summary and
Recommendations
Neuse River Basin Public Hearings
May 4, 2000
Town of La Grange
Waste Water Treatment Plant
NC0021644
Facility Description
This facility discharges 0.750 MGD of treated, 100%-domestic wastewater into an unnamed tributary of
Moseley Creek. The treatment facility consists of two former sludge disposal lagoons, currently used as
equalization basins with lift pumps to the oxidation ditch; lift pump to aeration basin; secondary biological
treatment (activated sludge) in two parallel, mechanically -aerated oxidation ditches; two parallel secondary
clarifiers with scum removal and gravity sludge return; three parallel low -rate sand filters for tertiary
treatment; chlorine contact chamber with flow -paced chlorine feed (gas); and post aeration (fixed mechanical
aerator). The public hearing focused on flow management and compliance issues.
Permit Summary
Limits at this facility are 5 mg/L (summertime BODS) and 2 mg/L (summertime NH3). Total phosphorus is
limited, as is total residual chlorine. This facility's average influent volume of 0.649 MGD (1998) represents
86% of permitted flow capacity at 0.750 MGD. In the event of storm flow (highest recorded 1.764 MGD),
primary waste is diverted into two unlined equalization basins (former sludge -disposal lagoons), then returned
to the oxidation ditches for treatment.
Oxidation ditches are to be upgraded for better nitrogen removal by adding additional submersible velocity
mixers (ATC approved Nov. 10, 1999).
Public Comments
Neuse River Foundation:
• System is operating @ over 86% annual capacity. Past moratorium on sewer connection lifted.
• Treatment severely impacted by I/I problems, otherwise well operated. Violations for excessive flow.
• Grant monies allocated for I/I and system improvements, but not yet implemented.
• State not regularly informed of I/I improvement implementation progress.
DWQ Response and Discussion
• La Grange WWTP has been severely impacted by I/I problems, i.e., high -inflow during and after
storm events requires storage of primary wastes; otherwise plant is well operated.
• Various grant monies have been allocated for I/I corrections and system improvements, but not yet
implemented. State not regularly informed of I/I improvement implementation progress.
• Moratorium lifted in 1998 after grant money allocated; more flow was added to a projected 0.600
MGD (80% capacity). Designs for treatment system upgrade are therefore due. Funding is an issue.
• Permit application to land apply sludge was returned to permittee in December 1999.

Recommended Action(s)
•
Permittee should be required to proviFegular progress reports describing I/I improvements.
As stated in the draft permit, th/ermittee is to provide a viable Sludge Management Plan to the
Division.
The following special condition should be included in the final permit:
(_.) WASTEWATER MANAGEMENT PLAN
No later than 180 days after the effective date of this permit, the Permittee shall submit to the
Division a wastewater management plan. The plan shall include, at a minimum, the following
elements
• . Facilities assessment. Describe deficiencies and operational difficulties in the
/ existing collection system or treatment facility, which affect performance or permit
compliance, and identify potential improvements to correct those. At a minimum,
evaluate the following considerations:
• inflow and infiltration, and
• diversion of wasteloads during peak flows.
• Optimization plan. Develop a strategy for optimization, rehabilitation, expansion
and/or replacement of the collection system to achieve optimum performance.
Identify specific measures and key tasks, including those in the above facilities
assessment, and provide an estimated schedule for completion of each.
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Re: La Grange WWTP
Subject: Re: La Grange WWTP
Date: Thu, 05 Oct 2000 09:04:19 -0400
From: Kristin Jarman <[e-mail]>
To: Joe Corporon <[e-mail]>
LaGrange has three clarifiers. No, they do not have an approved Sludge
Management Plan. Synagrow has sludge samples and hopes to have a
contract for State approval this week. They have not seen the draft
permit (neither the ORC, Ger -_--verson nor the Town Manager, Mike
Taylor). 7 P
Joe Corporon wrote: (:.:
> Kristin, before I can •finalize this permit, I need to clarify a few
> things:
> 1) Two clarifiers or three?
> 2) Do they fina y have an approved Sludge Management Plan up and
> working?
> Thanks for your
> Joe
> P.S. Last I -ard you were "flat on your back." Nice to have you
13)
> back.
elp.
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10/5/00 1:30 PM

DENR/D WQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0021644
Facility Information
Applicant/Facility Name:
Town of La Grange / La Grange Wastewater Treatment Plant
Applicant Address:
P.O. Box 368, La Grange, North Carolina 28551
Facility Address:
East King Street, La Grange, North Carolina 28537
Permitted Flow
0.750 MGD
Type of Waste:
100% domestic wastewater discharge
(WW Code Primary 40; Secondary 50)
Facility/Permit Status:
Class IV /Renewal
County:
Lenoir County
Miscellaneous
Receiving Stream:
UT to Moseley
Creek
Regional Office:
Washington
Stream Classification:
C-SW-NSW
State Grid /
USGS Topo Quad:
F 27 SE/
La Grange, NC
303(d) Listed?
No - TMDL
Permit Writer:
Joe R. Corporon
Subbasin:
03-04-07
Date:
29Mar00
Drainage Area (mi2):
0.44 mi.2
Summer 7Q10 (cfs)
0.0,
t„{
Winter 7Q10 (cfs):
0.0
30Q2 (cfs)
0.08
.
Average Flow (cfs):
0.53
IWC (%):
100%
Primary SIC Code:
4952
BACKGROUND
The Town of La Grange WWTP has a permitted flow of 0.750 MGD. It discharges below Falls
Lake Dam and is a member of the Lower Neuse River Basin Association (LNBA). Although the
facility was designated Class III in December 1999, this will change with permit renewal (see
Permitting Strategy).
This facility is currently permitted as follows:
Units
Flow
0.750 MGD
dm = daily maximum;
ma = monthly average
wa =weekly average
qtr = quarterly
w = weekly
d = daily
GODS summer
5.0 / 7.5 mg/L (ma / wa)
BOD, winter
10.0 / 15.0 mg/L (ma / wa)
TSR
30.0 / 45.0 mg/L (ma / wa)
NH3-N summer
2.0 mg/L (d)
NH3-N winter
4.0 mg/L (d)
DO
Monitor (d)
Fecal Coliform
200 / 400 per100 ml (ma / wa)
TRC
17.0 µg/L (dm)
Temperature
Monitor (d)
Conductivity
Monitor (variable)
Total phosphorus
2.0 mg/L (ma)
Total nitrogen
Monitor (qtr)
Fact Sheet
NPDES NC0021 6=4,1 Renewal
Page 1

The current permit was issued March 1994 and expired on January 31, 1999. The Division
received the appropriate documentation to renew on August 3, 1998 but placed it on hold
pending the Division's nutrient -management strategy for the Neuse River.
Influent / Infiltration (I/I) Problems. The Division issued a moratorium (April 22, 1999) on
sewer line permits for the Town of La Grange per I SA NCAC 2H. 0223. The Division rescinded
this moratorium on August 18, 1999, upon entering into an agreement with La Grange,
stipulating that La Grange would, 1) take steps to reduce inflow/infiltration problems; and 2)
provide an engineering report detailing these steps when completed. As of this recording, the
Division has not received this report. The Division requested La Grange to make consistent
progress toward infrastructure improvements and to provide for continued adequate treatment of
wastewater noting that La Grange had been awarded grant money to fund proposed wastewater
infrastructure improvements. Finally, the letter stated that if steps were not initiated, the Division
would reinstate the sewer line moratorium.
Correspondence. The Washington Regional Office (WaRO) conducted site visits and prepared
Staff Reports (July 14, 1999 and March 24, 2000) noting that the facility was well maintained
and operated except for problems with high inflow/infiltration (I/I) and related flow
management. During storm periods influent is diverted to unlined lagoons prior to treatment
(Kristin Jarmin, April 6, 2000). More recently, the Division's Non -discharge Permitting Unit
reported that the facility submitted a permit modification request (Residuals Land Application
Permit WQ0010488) in December 1999, but was returned on March 31, 2000 because of
inadequate land available to receive solids. Lastly, the in-house laboratory was de -certified for
BODS and has been contracting an outside NC -certified lab since July 1999. The Town is
orientating a new lab operator and expects to be re -certified by June 2000 (Mike Taylor, Town
Manager, April 7, 2000). The WaRO recommended renewing the NPDES permit noting that the
Permittee should submit a revised Sludge Management Plan for Division approval.
Instream Monitoring and Verification of Existing Conditions. The unnamed tributary of
Moseley Creek, located within sub -basin 03-04-05, is classified C-SW-NSW, and is not 303 (d)
listed as an impaired stream (as of March 31, 2000). Because this facility is a member of the
LNBA, instream monitoring is conducted by others.
DMR Data Review. The Division reviewed two years of Discharge Monitoring Reports
(DMRs) and Notices of Violation (NOVs). The following is a summary of compliance issues by
month:
January, 1998
February, 1998
March, 1998
April, 1998
January, 1999
February, 1999
Exceeded maximum flow
Exceeded maximum flow
Exceeded maximum flow
Exceeded maximum flow
Exceeded maximum flow
Exceeded maximum flow
NOV issued
NOV issued
NOV issued
NOV issued
NOV issued
Fined $1,052
Fined $1,052
Based on DMR data, this facility appears to suffer from inflow/infiltration (I/I) problems obvious
during storm events. During summer months not encumbered by heavy rainfall, flows average
about 0.550 MGD, a flow representing 73% of design capacity. However, yearly average flows
for 1999 (0.591 MGD) and 1998 (0.648 MGD) represent plant operation at 79% and 86% of
design capacity. Daily influent volumes for these years (although technically not in violation of
permit limits) exceeded the monthly flow limit for 95 of the first 150 days in 1998 (118% of
Fart Sheet
NPDES NC:0021644 Renewal
Page

design capacity), and 51 of the first 90 days in 1999 (122% of design capacity). Finally, peak
daily flows (to a maximum of 1.763 MGD) suggest that rainfall -related events can more than
triple (3.4 times) the plant's influent volume. These data clearly illustrate that this facility is
overdue for I/I and facility upgrades.
PERMITTING STRATIGY
Waste Load Allocation (WLA). The Division prepared the last WLA in 1994. Previous and
current effluent limits were based on guidelines for a zero -flow stream. As a member of the
LNBA instream monitoring is provisionally waived. Ammonia toxicity was not recalculated
since the facility already has an ammonia limit of 2.0 mg/L. The permit cover letter will
include a request for a revised Sludge Management Plan to include adequate land to apply
sludge, or other viable option. It is recommended that the permit be renewed with current
parameter limits and those appropriate to the Neuse River Nutrient -Sensitive Waters
Management Strategy.
Regarding Nitrogen Removal. Reported nitrogen levels in the facility's effluent suggests an
Annual Mass Loading of 15,220 pounds per year (conservatively assuming nitrogen @ 10 mg/L
and flow @ 0.500 MGD). This is roughly 1.8 times their LNBA allocation of 8,447 pounds per
year, and will certainly require a future upgrade for biological treatment to reduce nitrogen.
Upgrades will reclassify this facility to Class IV. Appropriate comments have been added to the
permit cover letter.
SUMMARY OF PROPOSED CHANGES
In keeping with Division policies and rules including the recently adopted Neuse River
Nutrient -Sensitive Waters Management Strategy, the following changes will be incorporated
into the permit:
• Total TN and TP monitoring and reporting.
• In -stream Monitoring and Reporting have been provisionally waived
contingent on regular and continuous LNBA membership
• Conductivity monitoring will no longer be required, regardless of
LNBA association.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
The Division will conduct a public hearing regarding this permit (and others) on May 4, 2000
and a decision to issue, modify or deny this permit (as drafted) will be made by August 2, 2000.
NPDES DIVISION CONTACT
If you have quest regardin:: fof the above information or on the attached permit, please contact
Joe Corporon . 919 733-5 xt. 597.
Ap
NAME: IIi DATE: /6,4
ERVISOR:
DATE: 2///OD
Fact Sheet
NPDES NC002 1644 Renewal
Page 3

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
March 31, 2000
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Mr. Mike Taylor
Town of LaGrange
PO Box 368
LaGrange, North Carolina 28551
AVA
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: Application No. WQ0010488
Application Return
Town of LaGrange
Land Application of Residual Solids
Wayne County
Dear Mr. Taylor:
This letter is in regards to a permit modification request received by the Division of Water Quality
December 16, 1999. Division Regional staff has spoken with the owner of the sites requested for land
application and the owner has informed staff that they no longer wish to allow the land application of
residuals to the requested sites. Since there are no other sites requested in the permit modification the
application is being returned to you as incomplete. Per a phone conversation with Teresa Ayers of Synagro
Souteast, Inc. the application package is being returned to Synagro Southeast, Inc.
Please be aware that per North Carolina Administrative Code Section 15A NCAC 2H .0205(d)(1)(H) a
Residuals Management Plan is required for all treatment systems. Your current permit for the land
application of residuals expires April 30, 2000.
If you have any questions or comments feel free to contact Sue Homewood at 919-733-5083 extension
502.64/4 V'
ri(ijvil'1/4
i
voS
Sincerely,
Kim. H. Colson, P.E.
Supervisor, Non -Discharge Permitting Unit
Cc: Washington Regional Office, Water Quality Section
Groundwater Section, Central Office
Synagro Souteast, Inc.
Non -Discharge Compliance Unit
Permit File WQ0010488
NDPU Files - Returns
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] Fax [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper

. LAILRO
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Washington Regional Office
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
MEMORANDUM
TO:
THOUGH:
FROM:
DIVISION OF WATER QUALITY
January 21, 2000
Sue Homewood
Nondischarge Permits Unit
Roger ThorpeP1
Robert Tankard
SUBJECT: Application No. WQ0010488
Town of LaGrange
Wayne County
This office cannot recommend issuance of Permit No. WQ0010488 at this time. The Iand that
proposed to be used is no longer available for use. The landowner has decided not to allow land
application of residuals on his land. The applicant needs to find additional land and then reapply.
If you should have any questions, please call.
943 Washington Square Mall, Washington, North Carolina 279s9 Telephone [phone] FAX [phone]
• An Equal. Opportunity Affirmative Action Employer
0 'd 8Z: ST 00, 0T .add S1Z6-9ti6-ZSZ: xed
o&dmfopa

ATISA
NCDENR
NORTH CAROLINA DERARTMENT OF
ENVIRONMENT AND NATURAL RESOURC .5
FAX
from the
Division of Water Quality
Washington Regional Office
TO: Joe Corporon — NPDES Pernutting
FAX NO.: 919-
FROM: Kristin Jarman
DATE: April 10, 2000
RE: Requested Information — LaGrange WQ permit deial
if OF PAGES (INCLUDING COVER): 2
COMMENTS:
Joe,
Put the "2 former sludge disposal lagoons currently used as equalization basins with lift
pump to o,ddation ditch" between the influent flow measurement by Parshall flume
and float gauge" and the "lift pump to aeration basin".
Kristin
943 Washington Square Mall, Washington, North Cfaolina 27889
Telephone [phone] FAX (2,52) 946-9215
TO 'd 8Z: ST 00 OT 'ids XPd Old(l/0P1Q

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i1

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
April 4, 2000
Mike Taylor
Town of La Grange
P.O. Box 368
120 East Railroad Street
La Grange, North Carolina 237551
AVA
NCDENR
d9,603)
63/
Subject: DRAFT -- NPDES Permit No. NC0021644
La Grange Wastewater Treatment Plant
Lenoir County
Dear Mr. Taylor:
According to your permit renewal request, received August 8, 1998, the Division has reviewed
your application and hereby transmits the draft permit for your review and comment. Please be
advised that a public hearing has been scheduled.
The Director of the Division has determined that it is in the public interest to hold a meeting to
receive all pertinent public comment on whether to issue, modify or deny the subject permit [pursuant
to NCGS 143-215.1(c)(3) and Regulation 15 NCAC 2H, Section .0100]. This meeting will be held
Thursday, May 4th at 7:00 p.m. at the Craven County Courthouse, 2nd floor in the Superior
Court Room, 302 Broad Street, in New Bern, North Carolina. We will be calling you within the
next few weeks to schedule a facility site visit prior to the public meeting.
Your facility discharges to waters within the Neuse River Basin. All streams within this basin
have been designated nutrient sensitive waters (NSW) as a result of environmental problems including
algal -blooms in the estuary. The North Carolina Environmental Management Commission recently
adopted rules establishing the Neuse River Basin Nutrient -Sensitive Waters Management Strategy to
reduce phosphorus and nitrogen inputs. The related point source rule (15A NCAC 2B.0234) intends to
reduce, by 30%, total nitrogen (TN) discharges by the year 2003. Because of this, revised nutrient
limits have been imposed on dischargers.
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1617 - TELEPHONE [phone]/FAX 919-733-
0719, AN EQUAL OPPORTUNITY AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/ 10% POST -CONSUMER PAPER. VISIT US ON
THE INTERNET @ http://h2o.enr.state.nc.us/NPDES

•
La Grange Wastewater Treatment Plant.
Permit No. NC0021644
Page 2
ra
T� revisions have been incorpo ated ' to your permit:
1) he Division has provisionally .'vex instream monitoring contingent on your
embership in the Lower Neuse er Basin Association (LNBA). If you should
terminate your membership for any reason, the instream requirements outlined in
the permit shall be immediately reinstated.
)�ie 2Division has revised your effluent -monitoring requirements for nitrogen and
phosphorous, in accordance with the recently adopted Ne se River Nutrient
Management Strate. . C— ' L( 0`h,
3) Lastly, it has been noted that you are holdin sludge onsite in lagoons in apparent
contradiction t3ur Sludge Mana•ement Pla (Dated July 30, 1998) providing for
regular land application of solids on 57.1 acres of privately owned land. Your
permit renewal is conting t on you providing an updated Sludge asagement Plan
by July 31, 2000. S-QR- G z ( ‘'). < ` S)
Please be advised that, beginning with the calend ear 2003, nitrogen removal under this permit
will most likely require upgraded biological processes. Effluent nitrogen levels reported in DMRs
suggest an Annual Mass Loading of 15,220 pounds per year (conservatively assuming nitrogen @ 10
mg/L and flow @ 0.500 ,MD). This is roughly 1.8 times your LNBA allocation of 8,447 pounds per
year, and will certai y eqt. ire additional biological treatment to reduce nitrogen. Therefore, the
Division encourages o h Ve system upgrades in place before the year 2003. It follows that your
facility will upgrade t s IV and, incidentally, require a Grade IV Operator in Responsible Charge
(ORC).
ith this letter, the 'vision is Rublishing a notice in the newsp ers having neral
rcir ulatio in the Lenoir Co 6ty are solici ' g public comme t'on hm is per draf . Folio ggthe1
p blic earmg d a 30- y public mm rft period, the Div' on wilievi all pert�en ommen'fs
a fake approp 'ate action prior to i u' g a final permit:-
Aleti i2•
Please provide any c ents you may have regarding this draft to DENR — DWQ, NPDES
Unit no later than , 2000. If you have questions concerning this draft permit for your facility,
please call me at [phone], extension 597.
Respectfully,
Joe R. Corporon,
NPDES Unit
cc: Central Files
Washington Regional Office, Water Quality Section
NPDES Unit r (ef P12-Al"
A401104e;01011 rity54- j\IVe. lerttidelerrlon
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A. ( ). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1 - October 31) Permit No. NC0021644
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall
serial number 001. Such discharges shall be limited and monitored by the perrniltee as specified below:
Effluent Characteristics Discharge Limitations
Monthly Avg.
Flow 0.750 MGD
BOD, 5 day, 20°C— 5.0 mg/I
30.0 mg/I
2.0 mg/I
Total Suspended Residue**
NH3 as N
Dissolved Oxygen****
Fecal Coliform (geometric mean) 200A/100 mi 400'a 100 ml
Total Residual Chlorine
Weekly Avg. Daily Max
-- Temperature I /
TD1at-Alitr-0getL(ND2 +-NO3 + rKN)---\� A-/ - CA . 1t"�C7L`t6.J'�
Tota#zzph ws 2.0 m g.j & 3.*
Conductivity_ —
7.50 mg/I
45.0 mg/I
lug/I
Monitoring
Measurement
Frequency
Continuous
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Quarterly
Weekly
Requirements
Sample
Type
Recording
Composite
Composite
Composite
Grab
Grab
Grab
Grab
Composite
Composite
Grab
*Sample
Location
I or E
E, I
E, I
E
E, U, D
E, U, D
E
E,U,D ✓
E
E
U, D
* Sample locations: E - Effluent, I - Influent, U - Upstream at NCSR 1514, D - Downstream at 1) NCSR 1518 and 2) NCSR 1327
Upstream and downstream samples shall be grab samples. Stream samples shall be collected three times per week during June, July, August,
and September and once per week during the remaining months of the year.
** The monthly average effluent BODS and Total Suspended Residue concentrations shall not exceed 15 % of the respective influent value (85
%) removal.
*** Compliance shall be based upon a quarterly average of weekly samples.
f________T
**** The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/I.
he pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored daily at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

4d0%55
425d-00
FRED STATEN, SR., MAYOR
BOBBY WOOTEN, MAYOR PRO-TEM
COUNCILMEN
JOSEPH T. HARRISON
WALTER ELLIS, JR.
WILLIAM N. H. SMITH
WOODARD H. GURLEY
ELLIOTT SUTTON
Taint of ficEn 6raqr
Certified #-P 511 607 215
July 30, 1998
P.O. Box 368
120 East Railroad St.
LA GRANGE, NORTH CAROLINA 28551
Ph. 919-566-3186 Fax [phone]
Mr. Charles H. Weaver, Jr.
Permits and Engineering Unit
NCDENR-DWQ
P.O. Box 29535
Raleigh, NC 27626-0535
Re: La Grange Wastewater Treatment Plant
NPDES Permit Renewal
NPDES No. NC0021644
Lenoir County
Dear Mr. Weaver:
MIKE TAYLOR, TOWN MANAGER
PHYLLIS T. HARRISON
TOWN CLERK and FINANCE OFFICER
JOHN L. SULLIVAN, JR.
CHIEF OF POLICE
Pursuant to the requirements of North Carolina General
Statute 143-215.1, enclosed please find three (3) copies of
the completed application for the renewal of NPDES Permit
No. NC0021644. This permit is for the continued operation of
our existing 0.75 MGD wastewater treatment plant. Also
enclosed is a check in the amount of $250 to cover the permit
renewal fee. Please direct any questions or comments to
myself at [phone] or Mr. Eric Tweed of The Wooten
Company at [phone].
Sincerely,
TOWN OF LA GRANGE'
Mike Taylo
Town Manager
Enclosures
cc: The Wooten Company

NLUUt -,JL - Maury Sanitary VISInCI
zw-/L( Cxwz=
Subject: Re: NC-696492 - Ma Tstrict
Date: Wed, 14 Jul 1999 12:28:26 +1100
From: "Al Hodge" <[e-mail]>
Organization: WP,RO-DENR
To: "Charles Weaver" <[e-mail]>
Hi Charles:
I recommend that MSD be required to "declare" a final disposal for its sludge. It can be the old lagoon. However,
final disposal in the lagoon is complex per 503 rules. MSD is sliding -by now. I recommend a condition requiring MSD
to declare the final disposal method and apply for a permit(land application, lagoon disposal, etc.) within tweleve
months after the NPDES permit is issued.
Al Hodge
Washington Regional Office
4"/ Au°/ /1_
674,',/?
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71/
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of 1 7/14/99 12:39 PM

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BY
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•
cc:
Signed

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director
Mr. Mike Taylor
Town of La Grange WWTP
120 East Railroad Street
La Grange, NC 28551
Subject:
Dear Mr. Taylor :
DENR
August 18, 1999
Lifting of Sewer Line Moratorium
NPDES Permit No. NC0021644
Town of La Grange WWTP
Lenoir County
On April 22, 1999, a moratorium on the issuance of sewer line permits was placed on the
Town of La Grange per the authority of 15A NCAC 2H .0223, which specifies that prior to
exceeding 80% of their hydraulic treatment capacity, facilities must submit plans and
specifications and obtain all permits needed for expansion of the wastewater treatment system
before permits for sewer line extensions may be issued. If expansion is not proposed or is
proposed for a later date, a detailed justification must be made and approved by the Director,
which should include past growth records and future growth projections and discuss specific
measures to achieve flow reductions. Monitoring data submitted by the Town showed the
subject wastewater treatment plant operated at 86.43% of its treatment capacity during 1998.
I have reviewed the Town of La Grange's letter of May 17, 1999 requesting to have the
sewer line moratorium lifted. The letter stated that the Town has taken preliminary steps to
reduce inflow/infiltration problems in its collection system and a engineering report detailing
such steps has been completed. I am aware that the Town has been awarded a grant to fund the
proposed wastewater infrastructure improvements.
In light of these findings and upon the recommendation of our Washington Regional
Office staff, I hereby remove the moratorium on the issuance of sewer line permits placed on the
Town of La Grange. The Division applauds and encourages your commitment to environmental
protection through improvements in your wastewater infrastructure. Should it be determined that
the Town is not making consistent progress toward infrastructure improvements or that the Town
cannot adequately treat its wastewater, a sewer line moratorium will again be imposed.
1617 Mail Service Center, Raleigh, NC 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled / 10% post -consumer paper

If you have any questions about this letter, please do not hesitate to contact the Water
Quality Section staff in our Washington Regional Office at [phone] or Rob Lang of our
Central Office staff, at [phone], extension 361.
Sincerely,
41/\Kerr T. 449L._
ens
cc: Washington Regional Office
Compliance/Enforcement File
Non -Discharge Permitting ,Renualigteles

Date:
Time:
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❑ Return Mr/Mrs. % I�K� �--t
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NOTES/ SUMMARY
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cc:
BY WHOM/WHEN
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5.

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director
April 22, 1999
CER 1'11-IED MAIL
RETURN RECEIPT REQUESTED
Mr. Mike Taylor
Town of La Grange WWTP
120 East Railroad Street
La Grange, NC 28551
DENR
Subject: Demonstration of Future Wastewater Treatment Capacities
NPDES Permit No. NC0021644
Town of La Grange WWTP
Lenoir County
Dear Mr. Taylor :
15A NCAC 2H .0223, "Demonstration of Future Wastewater Treatment Capacities," was
adopted by the Environmental Management Commission to ensure that wastewater treatment
systems owned or operated by municipalities, counties, sanitary districts or public utilities do not
exceed their hydraulic treatment capacities. This Rule specifies that no permits for sewer line
extensions will be issued by the Division of Water Quality to facilities exceeding 80% of their
hydraulic treatment capacity unless specific evaluations of future wastewater treatment needs
have been completed.
A review of your self-mo
the 80% value for calendar year
MGD, and represented 86.43% of
to approve any further sewer line extensions for this facility until such time as you have complied
with the requirements contained in the Rule.
reports has indicated that the subject facility exceeded
The average flow calculated for this period was 0.6482
current treatment capacity. Therefore, we will be unable
In order to remain in compliance with the Rule, you must submit an approvable
engineering evaluation of future wastewater treatment needs. This evaluation must outline
specific plans for system expansion and including the sources of funding for the expansion. If
future expansion is not proposed, a detailed justification must be made based on past growth
records and future growth projections and, as appropriate, shall include conservation plans or
other specific measures to achieve waste flow reductions.
To prevent delays in the processing of your future permit applications for sewer line
extensions, please submit a plan of action containing the information necessary to comply with
the appropriate demonstrations as described above to the following address:
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

DENR-DWQ
Point Source Compliance/Enforcement Unit
Post Office Box 29535
Raleigh, North Carolina 27626-0535
Per the terms of NCAC 2H. 0223 (3), the Director may, on a case by case basis, allow
permits to be issued to facilities exceeding the 80 percent loading rate if: 1) the additional flow
will not cause the facility to exceed its permitted hydraulic capacity, 2) the facility is in
compliance with all other permit limitations and requirements and 3) it is demonstrated that
adequate progress is being made in developing the required engineering evaluations or plans and
specifications. If you wish to ask for lifting of the moratorium per this provision of the rule,
please send information in support of your request to the address listed above.
As always, the actual plans and specifications for expansion should be submitted to the
NPDES Permit Unit of the Water Quality Section.
We look forward to working with you on development of your future wastewater
treatment needs. If you have any questions on this matter, please do not hesitate to contact the
Water Quality Section staff of our Washington Regional Office at [phone] or Mr. Bob
Sledge of the Point Source Compliance/Enforcement Unit, at [phone], extension 547.
Sincerely,
Coleen H. S i ' . s, Chief
Water Quality Section
cc: Washington Regional Office
Non -Discharge Permitting Unit
Compliance/Enforcement Files
Central Files

61t';,),\
Instream Waste Concentration (IWC)
.Country Wo(Id,. WWTP, Class III
da169965684 a,k to L�
Prepared By: Joe Corporon, NPDES Unit
Enter Design Flow (MGD):
Enter s7Q10(cfs):
Enter w7Q10 (cfs):
0.75
0
0
Residual Chlorine
7Q10 -(CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (I
IWC (%)
Allowable Conc. (ug/I)
Fecal Limit
(If DF >331; Monitor)
(If DF <331; Limit)
Dilution Factor (DF)
NPDES Servor/Current Versions/IWC
0
0.75
1.1625
17.0
0
100.00
17
Ammonia (NH3 as N)
(summer)
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL
IWC (%)
Allowable Conc. (mg/I)
Ammonia (NH3 as N)
(winter)
7Q10 (CFS)
200/100mI DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
1.00 UPS BACKGROUND LEVEL
IWC (%)
Allowable Conc. (mg/I)
0
0.75
1.1625
1.0
0.22
100.00
1.0
0
0.75
1.1625
1.8
0.22
100.00
1.8
3/29/00