NC0028037_Regional Office Historical File Pre 2016

AV4JWAp
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
July 28, 2014
Mr. Roger Spach, Water Resources Superintendent
City of Lexington
28 West Center Street
Lexington, NC 27292
SUBJECT: Compliance Evaluation Inspection
Lexington Water Treatment Plants #1 and #2
Permit No. NCO028037
Davidson County
Dear Mr. Spach:
John E. Skvarla, III
Secretary
A compliance Evaluation Inspection was performed at Lexington's Water Treatment Plants on July 23, 2014 by
Jenifer Carter of the Winston-Salem Regional Office. Ms. Debra Hogan, ORC, was present for the inspection. This
type of inspection consists of two basic parts: a review of facility files and self -monitoring data, and an on -site
inspection of the facility. The following are the findings from the subject inspection:
• A review of self -monitoring data since the last inspection did not reveal any monitoring or limits violations.
• Lab data correlated correctly with data on the submitted Discharge Monitoring Reports.
• Concrete around the four sludge drying beds and two settling basins continue to show signs of wear and
tear, with some seepage observed from the drying beds. Ms. Hogan believes the City's budget may include
money for repairs or upgrades to the basins and drying beds. (Plans to expand drying bed capacity by 50%
within 2 years were noted in the City's NPDES permit renewal application submitted in October .0 13). Plans
for repairs and/or upgrades to the existing drying beds should also be made, if not already done.
The compliance inspection was satisfactory. Please review the enclosed inspection form for more detailed
information. If you have any questions, please call Jenifer Carter at [phone].
enclosure
cc: DWR central files
WSRO files
Sincerely,
s
W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NC DENR
585 Waughtown St., Winston-Salem, NC 27107
Phone: [phone] Internet: www.ncdenr.gov
An Equal Opportunity 1 Affirmative Action Employer — Made in part by recycled paper

United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Water Compliance Inspection Report
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 I N I 2 15 I 3 I N00028037 111 12 14/07/23 17 18 I, I 19 L s j 20 Lj
211111 I I I I 11111 11 I I I I I I I I I I I I I I I I I I I I II I I I I I �6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 QA--------Reserved ------
67
70 LJ [, j 71 [ 72 L rJ � 73 �74 751 1 1 1 1 I � I80
LJ
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES Dermit Number)
10:OOAM 14/07/23
09/06/01
Lexington WTP #1 & 2
NCSR 1844
Exit Time/Date
Permit Expiration Date
Lexington NC 27292
11:OOAM 14/07/23
14/04/30
Name(s) of Onsite Representative(s)fritles(s)/Phone and Fax Number(s)
Other Facility Data
N
Debra Norman Hogan#336-248-5820 /
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Roger Allen Spach,28 W Center St Lexington NC
272923099//336-248-3970/3362493584 No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit E Flow Measurement Operations & Maintenance Records/Reports
Self -Monitoring Program 0 Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
:Jenifer arter WSRO WQ//336-771-5000!
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

NPDES yr/mo/day Inspection Type (Cont.)
31 NCO028037 I11 12 14/07/23 17 18 JCJ
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
No violations or deficiencies noted.
Concrete around the settling ponds showing signs of wear and tear. Concrete around the drying beds
needs replacing/repair, as seepage was noted. There was no evidence that seepage has flowed to
surface waters.
The NPDES permit renewal application received in October 2013 noted that there are plans to increase
drying bed capacity. Ms. Hogan believes the City's budget includes money for repair/upgrades to the
existing ponds and drying beds. If the latter is not the case, plans should be made for repairs/upgrades
to prevent further/worsening of the seepage.
Page#

Permit: NCO028037 Owner - Facility: Lexington WTP #1 & 2
Inspection Date: 07/23/2014 Inspection Type: Compliance Evaluation
Permit
Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
0
❑
❑
❑
application?
Is the facility as described in the permit?
0
❑
❑
❑
# Are there any special conditions for the permit?
❑
0
❑
❑
Is access to the plant site restricted to the general public?
0
❑
❑
❑
Is the inspector granted access to all areas for inspection?
0
❑
❑
❑
Comment:
Record Keeping
Yes No NA NE
Are records kept and maintained as required by the permit?
0
❑
❑
❑
Is all required information readily available, complete and current?
0
❑
❑
❑
Are all records maintained for 3 years (lab. reg. required 5 years)?
0
❑
❑
❑
Are analytical results consistent with data reported on DMRs?
0
❑
❑
❑
Is the chain -of -custody complete?
M
❑
❑
❑
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
Are DMRs complete: do they include all permit parameters?
❑
❑
❑
Has the facility submitted its annual compliance report to users and DWQ?
0
❑
❑
❑
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator
❑
❑
0
❑
on each shift?
Is the ORC visitation log available and current?
0
❑
❑
❑
Is the ORC certified at grade equal to or higher than the facility classification?
0
❑
❑
❑
Is the backup operator certified at one grade less or greater than the facility classification?
0
❑
❑
❑
Is a copy of the current NPDES permit available on site?
0
❑
❑
❑
Facility has copy of previous year's Annual Report on file for review?
0
❑
❑
❑
Comment:
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional? ❑ ❑ 0 ❑
Is sample collected below all treatment units? M ❑ ❑ ❑
Page# 3

Permit: NCO028037 Owner - Facility: Lexington VVrP #1 & 2
Inspection Date: 07/23/2014 Inspection Type: Compliance Evaluation
Effluent Sampling
Yes No NA NE
Is proper volume collected?
0❑
❑
❑
Is the tubing clean?
❑
❑
0
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
❑
❑
M
❑
Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
❑
❑
❑
representative)?
Comment:
Upstream / Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type, and 0 ❑ ❑ ❑
sampling location)?
Comment:
Flow Measurement - Effluent
Yes No NA NE
# Is flow meter used for reporting?
M
❑
❑
❑
Is flow meter calibrated annually?
M
❑
❑
❑
Is the flow meter operational?
❑
❑
❑
(If units are separated) Does the chart recorder match the flow meter?
❑
❑
0
❑
Comment
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? M ❑ ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable 0 ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: concrete around sludge drying beds still in need of repair, with evidence of seeping noted
Ms. Hogan thinks that repairs/upgrades are in the current City budget If not plans should be
made for the repair or replacement of the beds. Concrete around the settling ponds is also
showing signs of wear and tear.
Lagoons Yes No NA NE
Type of lagoons?
# Number of lagoons in operation at time of visit? 2
Are lagoons operated in? Parallel
# Is a re -circulation line present? ❑ ❑ 0 ❑
Is lagoon free of excessive floating materials? M ❑ ❑ ❑
# Are baffles between ponds or effluent baffles adjustable? ❑ ❑ 0 ❑
Page# 4
It

Permit: NC0028037 Owner - Facility: Lexington VJTP #1 & 2
Inspection Date: 07/23/2014 Inspection Type: Compliance Evaluation
Lagoons Yes No NA NE
Are dike slopes clear of woody vegetation?
Are weeds controlled around the edge of the lagoon?
Are dikes free of seepage?
Are dikes free of erosion?
Are dikes free of burrowing animals?
# Has the sludge blanket in the lagoon (s) been measured periodically in multiple
locations?
# If excessive algae is present, has barley straw been used to help control the growth?
Is the lagoon surface free of weeds?
Is the lagoon free of short circuiting?
• ❑ ❑ ❑
• ❑ ❑ ❑
• ❑ ❑ ❑
■ ❑ ❑ ❑
❑ ❑ ❑
■ ❑ ❑❑
Comment: This section used to evaluate the two 24-hour settling ponds. Concrete is showing wear and
tear.
De -chlorination Yes No NA NE
Type of system ? Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ❑ 0 ❑
Is storage appropriate for cylinders? ❑ ❑ 0 ❑
# Is de -chlorination substance stored away from chlorine containers? 0 ❑ ❑ ❑
Comment:
Are the tablets the proper size and type? ❑ ❑ 0 ❑
Are tablet de -chlorinators operational? ❑ ❑ 0❑
Number of tubes in use?
Comment:
Drying Beds
Yes No NA NE
Is there adequate drying bed space?
0
❑
❑
❑
Is the sludge distribution on drying beds appropriate?
0
❑
❑
❑
Are the drying beds free of vegetation?
0
❑
❑
❑
# Is the site free of dry sludge remaining in beds?
0
❑
❑
❑
Is the site free of stockpiled sludge?
0
❑
❑
❑
Is the filtrate from sludge drying beds returned to the front of the plant?
❑
❑
0
❑
# Is the sludge disposed of through county landfill?
0
❑
❑
❑
# Is the sludge land applied?
❑
M
❑
❑
Page# 5

Permit: NC0028037 Owner - Facility: Lexington WTP #1 & 2
Inspection Date: 07/23/2014 Inspection Type: Compliance Evaluation
Drying Beds Yes No NA NE
(Vacuum filters) Is polymer mixing adequate? ❑ ❑ 0 ❑
Comment:
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? 0 ❑ ❑ ❑
Are the receiving water free of foam other than trace amounts and other debris? 0 ❑ ❑ ❑
If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ 0 ❑
Comment:
Page# 6

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES PERMIT NC0028037
facilit Informati©it .
Appl��it/l�ac��ty
City of Lexington/Lexington WTP #1 & #2
ei
iicnt Adsa::
28 West Center St; Lexington, NC 27929
d4i
2979 Old Greensboro Street Extension; Lexington
NC 27929
tc. ;
Maximum monthly average in last 3 years = 0.486 MGD
' .
Conventional WTP treated backwash/rinse wastewater
1 +e��t t�Y',. ;Class
II /Active; Renewal
.''
Davidson Count
isce lwo
# �treaztt:
Abbotts Creek
Stream Clailcatan:
WS-III, CA
03-07-07
12-119-(4.5)
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Regional Off=
Winston-Salem
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Lexington East, NC
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Prritr. ..
Ron Beffy
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Batt';
10/7/14
BACKGROUND
The City of Lexington operates two conventional WTPs with a combined potable water capacity
of 9.4 MGD. The treated backwash/rinse wastewater is discharged to Abbotts Creek, a class WS-
III, CA stream in the Yadkin -Pee Dee River Basin. Abbotts Creek discharges into the upper arm
of High Rock Lake. During the last 36 months the reported monthly average flow was from
0.152 MGD to a maximum of 0.486 MGD.
HISTORY
2009 — Renewal permit applied the 2007 conventional WTP Strategy; added monitoring for
calcium, magnesium, manganese, fluoride, total zinc, total copper, TP, TN, and Chronic
toxicity at 20% concentration; added pH monitoring with limits; removed settleable
solids requirements; added compliance date to install continuous flow meter with
recorder; continued TSS, aluminum, iron, turbidity, and TRC requirements.
PROCESS
Thom-A-Lex Reservoir provides raw water for the potable water plants. Potable water which has
been chlorinated, fluorinated, and treated with a zinc base corrosion inhibitor is used to
backwash and rinse the filter beds on an intermittent bases. The resulting wastewater is collected
and directed to a splitter box where the flow is directed to two settling lagoons.
Accumulated sludge is removed from the lagoons via bottom drains and pumped to drying beds.
If needed polymer can be added to the sludge prior to distribution to the drying beds. A drain
system collects the filtered wastewater from the drying beds and directs the flow to a gravity
sewer. A siphon decant system is used to extract wastewater from the lagoons and discharges to
the gravity sewer. Other site specific non -domestic sources have drain systems which also
Fact Sheet
NPDES NC0028037
Page 1 of 4

connect to the gravity sewer. As needed solids are removed from the drying beds and transported
to a landfill. A storage pad is available to store solids.
As the wastewater flows through the gravity sewer it passes through the effluent meter and is
dechlorinated with calcium thiosulfate from a liquid chemical addition system. The treated
wastewater is discharged into Abbotts Creek.
COMPLIANCE
Since June 2009, there were 3 flow violations, 4 pH violations, and some reporting issues which
were resolved. No fines were assessed. The continuous /recording flow meter was operational by
the compliance date. Note, the existing BIMS compliance system does not see or have the
capability of evaluating the permit's turbidity compliance narrative as defined by
upstream/downstream data.
DATA REVIEW
DMRs were reviewed for the period of August 2011 to July 2014. DMR data is summarized in
Table I below:
Table I * based on monthly average
Total
Flow*
TSS*
pH
Residual
TN
TP
(MGD)
(mg/L)
(S.U.)
Chlorine
(mg/L)
(mg/1)
( L)
Average
0.251
2.25
6.48
26
2.183
0.100
Maximum
0.486
5.2
7.3
50
7.79
0.25
Minimum
0.152
0.8
6.0
< 1
0.11
0.03
Turbidity
The existing turbidity water quality narrative limit and instream monitoring for compliance was
part of the original permit issued in 1975. During previous renewals, the permit writers noted no
observed turbidity compliance issues.
For this renewal, upstream and downstream data reported from June 2011 to July 2014 was
reviewed to determine compliance with the permit's turbidity water quality standard 15 NCAC
02B .0211(3)(k); the discharge cannot cause stream turbidity to increase above 50 NTU or if the
natural background stream turbidity is higher than 50 NTU then the discharge cannot cause any
increase in stream turbidity. The reported downstream turbidity ranged from 2.9 NTU to 135
NTU. Of the 76 upstream/downstream data sets reported, 5 (7% of total reported) indicated
exceedances of the turbidity water quality standard, 37 (49% of total reported) indicated no
stream turbidity change or a reduction in stream turbidity, and 20 (44% of total) indicated a
stream turbidity increase without the stream exceeding 50 NTU.
Chronic Toxicity
Since June 2009 there were 20 chronic toxicity tests performed using ceriodaphnia dubia at 20%
concentration, all were passed.
PERMITTING STRATEGY
Reasonable Potential Analysis (RPA)
EPA -recommended reasonable potential analyses were conducted for detected toxicants of
fluoride, manganese, total copper, total iron, and total zinc; based on DMR data from August
Fact Sheet
NPDES NC0028037
Page 2 of 4

2011 to July 2014 and a discharge flow of 0.486 MGD. Results suggest reasonable potential for
the facility to discharge manganese, total copper, and total zinc in excess of water standards.
- Total copper and total zinc are action level parameters and are evaluated in conjunction
with effluent toxicity. There are no toxicity issues so monitoring will be reduced to
quarterly to coincide with toxicity testing per RPA 2010 guidance.
As a discharge to a WS-III class stream, a monthly manganese limit with monthly
monitoring will be added to the permit. Because the manganese water quality standard is
proposed to be removed as part of the Triennial Review, the compliance date is
postponed for 48 months from this permit effective date.
The RPA predicted fluoride value is less than 50% of the water quality standard.
Monitoring will be removed per RPA 2010 guidance.
Other Metals and Turbidity
There are no iron based additives used in the potable water treatment process and there is no
reasonable potential to exceed the water quality standard. Total iron monitoring will be removed
from this permit. Aluminum based additives are used in the potable water treatment process.
Aluminum will continue to be monitored quarterly.
Per WTP 2009 guidance the flow limit, calcium and magnesium monitoring can be removed.
There are no water quality standards for calcium and magnesium.
As the result of the turbidity water quality standard violations determined from the instream data
received, an effluent turbidity limit of 50 NTU with 2/month monitoring will be added to this
permit. Mandatory instream monitoring will be removed. However, the permittee may want to
consider voluntarily instream monitoring to document whether future turbidity compliance issues
are due to natural background or not.
Electronic DMR (eDMR) Compliance Special Condition
To facilitate US EPA guidance on meeting future eDMR reporting, a special condition outlining
Permittee's options, the web site for obtaining forms, and the compliance date 270 from the
effective date of this permit will be added. The Permittee may apply for a temporary waiver
request to comply with eDMR 270 days prior to the eDMR compliance date, and will be granted
a waiver if the Permittee meets the waiver criteria. If no waiver is applicable the Permittee must
begin submittal of DMR electronically 270 days after the permit effective date. The Permittee
will also be required to submit a signed printed copy of the monthly eDMR to the Division to
comply with current US EPA's Cross -Media Electronic Reporting Regulation. A footnote will be
added to A. (L) effluent page for reference to eDMR special condition.
High Rock Lake
As a discharger into the upper High Rock Lake watershed, a nutrient reopener special condition
will be added.
SUMMARY OF PROPOSED CHANGES
The following will be incorporated into the permit:
- Flow limit will be removed, no longer required. Highest monthly average over last 36
months will be used to calculate water quality standard limits.
- Calcium and magnesium monitoring will be removed, no longer required.
Fact Sheet
NPDES NC0028037
Page 3 of 4

- Fluoride monitoring will be removed. No longer required because effluent data showed
no reasonable potential to exceed WQS.
- Total copper and total zinc monitoring will be reduced to quarterly per RPA evaluation
guidance.
- Total iron monitoring will be removed. BPJ no longer needed, no RP and no iron
additives used.
- Effluent turbidity daily limit of 50 NTU with 2/month monitoring will be added
Instream turbidity monitoring and turbidity water quality standard narrative will be
removed.
- Manganese monitoring will be increased to monthly and a conditional monthly limit
added with compliance to commence 48 months from the effective date of this permit.
Reported values exceeded the current WS-III WQS but manganese is proposed to be
removed in the Triennial Review. Limit required, BPJ postponing compliance until such
time WQS is revised.
- Special condition A. (3.) ELECTRONIC REPORTING OF DISCHARGE
MONITORING REPORTS and footnote narratives will be added. Implementing US
EPA electronic reporting requirements.
- Special condition A.(4.) NUTIENT REOPENER FOR HIGH LAKE will be added.
- Supplement to Permit Cover Sheet and special condition A. (2.) CHRONIC TOXICITY
MONITORING (QRTRLY) narratives will be updated.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice: October 8, 2014
Permit Scheduled to Issue: November 2014
NPDES DIVISION CONTACT
If you have questions regarding any of the above information or on the attached permit, please
contact Ron Berry at [phone] or email [e-mail].
NAME: ORIGINAL SIGNED BYRON BERRY DATE: 1017114
REGIONAL OFFICE COMMENTS
NAME:
DATE:
SUPERVISOR: DATE:
Fact Sheet
NPDES NCO028037
Page 4 of 4

City of Lexington, NC
Department of Water Resources
January 10, 2014
System Performance Annual Report - 2013
Lexington Water Treatment Plants # 1 & #2
I. General Information:
(A) Name of Regulated Entity: City of Lexington Water Treatment Plants # 1 & # 2
(B) Responsible person: Roger Spach, Water Resources Superintendent
City Of Lexington
28 West Center Street
Lexington, NC 27292
(C) Applicable Permit: NC0028037
(D) Description of treatment process: Filter backwash and basin wash water from
Lexington Water Treatment Plants # 1 & # 2 are discharged to a treatment system
consisting of the following elements - two 24 hour settling ponds, four sludge drying beds
and a 40 by 60 foot concrete sludge storage pad with a drain line located at the Lexington
Water Plants No. 1 and No. 2 2979 Greensboro Street, Lexington, Davidson County.
The discharge from these treatment works is into Abbott's Creek, which is classified as
WS-III waters in the Yadkin -Pee Dee River Basin.
II. Performance:
(A) Description of overall 12 month performance: This treatment s sy tem performed in
full compliance for 2013
(B) Violations:
(1) Permit Limit Violations: none
(2) Monitoring and Reporting Violations: none
(3) Illegal Bypasses of Treatment Facilities: none
(4) Sanitary Sewer Overflows: none
(continued)

(C) Known Environmental Impact of Violations: none
(D) Description of corrective measures taken to correct violations or deficiencies: In
January and February, the discharge monitoring report showed that the effluent flow
limit was exceeded. This was determined to be a meter malfunction and the meter
was replaced. In October, severalanalyses were omitted by mistake. Additional
testing was done in November to make up for this.
III. Notification: This document is available for review by the public at the Water
Resources Administrative Office at 711 Talbert Boulevard. Public notification of the
availability of this document will be made by notice in the local news paper The
Dispatch in February, by advertisement on the City's cable access channel, and by
presentation to the Lexington Utilities Commission on February 3, 2014. Notice of
this document's availability will be mailed to all of the City of Lexington's utility
customers in Februa ,ram 2014.
IV. Certification:
The information in this report was prepared by me and is accurate and complete to the
best of my knowledge:
Water Resources Superintendent date: / / ( ewArl-
"/7
R ger S ach

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Water Quality Programs
Pat McCrory Thomas A. Reeder
August 2, 2013
Mr. Roger Spach, Water Resources Superintendent
City of Lexington
28 West Center Street
Lexington, NC 27292
SUBJECT: Compliance Evaluation Inspection
Lexington Water Treatment Plants #1 and #2
Permit No. NCO028037
Davidson County
Dear Mr. Spach:
John E. Skvarla, III
A compliance Evaluation Inspection was performed at Lexington's Water Treatment Plants on July 18, 2013 by Jenifer
Carter of the Winston-Salem Regional Office. Ms. Debra Hogan, ORC, was present for the inspection. This type of
inspection consists of two basic parts: a review of facility files and self -monitoring data, and an on -site inspection of the
facility. The following are the findings from the subject inspection:
A review of self -monitoring data since the last inspection, for the period of March 2011 through April 2013, revealed two
minor monitoring violations, which have been addressed by the Division's monthly enforcement program. Lab data
correlated correctly with data on the submitted Discharge Monitoring Reports, except for one transcription error on the
February 2013 DMR, which did not affect overall compliance. Flow meter calibration records were provided during the
inspection.
The four sludge drying beds are showing signs of wear and tear, with several repairs to the concrete observed. Ms.
Hogan said that the beds are now checked before and after rain events to make sure sludge does escape.
The compliance inspection was satisfactory. Please review the enclosed inspection form for more detailed information. If
you have any questions, please call Jenifer Carter at [phone].
Sincerely,
W. Corey Basinger
Interim Surface Water Regional Supervisor
Winston-Salem Regional Office
Division of Water Quality
enclosure
cc: SWP central files
WSRO files
North Carolina Division of Water Resources, Winston-Salem Regional Office
Location: 585 Waughtown Street, Winston-Salem, NC 27107
Phone: [phone] Fax: [phone] Customer Service: 1-877-623-6748
Internet: hftp:/ANm.ncwater.org
NorthCarolina
Naturally
An Equal Opportunity 1 Affirmative Action Employer

United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
I i
1 INI 2 L 5 I 31 NCO028037 ' 11 121 13/07/18 117 181 C I 191 S I 20 LJ
l=
Remarks
21111111111111111111111111111111111111111111111116
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA --------------Reserved ----- ------
67 I 169 70 U 3 71 I N I 72111 73I I 174 751 I I I I I I 180
�� .� W
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
09:30 AM 13/07/18
09/06/01
Lexington WTP #1 & 2
Exit Time/Date
Permit Expiration Date
NCSR 1844
Lexington NC 27292
10:20 AM 13/07/18
14/04/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Debra Norman Hogan//336-248-5820 /
Name, Address of Responsible Official[Title/Phone and Fax Number
Contacted
Roger Allen Spach,28 W Center St Lexington NC 272923099H336-248-3970/ No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Flow Measurement ■ Operations & Maintenance Records/Reports
Self -Monitoring Program 0 Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Jeni Carter ;' WSRO WQ//336-771-5000/ ,
-
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

NPDES yr/mo/day Inspection Type
3I NCO028037 I11 121 13/07/18 1
17 18U
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Page # 2

r
Permit: NCO028037
Inspection Date: 07/18/2013
Owner - Facility: Lexington WTP #1 & 2
Inspection Type: Compliance Evaluation
Permit
(If the present permit expires in 6 months or less). Has the permittee submitted a new application?
Is the facility as described in the permit?
# Are there any special conditions for the permit?
Is access to the plant site restricted to the general public?
Is the inspector granted access to all areas for inspection?
Comment:
Record Keeping
Are records kept and maintained as required by the permit?
Is all required information readily available, complete and current?
Are all records maintained for 3 years (lab. reg. required 5 years)?
Are analytical results consistent with data reported on DMRs?
Is the chain -of -custody complete?
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
Are DMRs complete: do they include all permit parameters?
Has the facility submitted its annual compliance report to users and DWQ?
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift?
Is the ORC visitation log available and current?
Is the ORC certified at grade equal to or higher than the facility classification?
Is the backup operator certified at one grade less or greater than the facility classification?
Is a copy of the current NPDES permit available on site?
Facility has copy of previous year's Annual Report on file for review?
Comment: February 2013 DMR had one Turbidity value from March 2013 recorded on
it by mistake. This transcription error did not effect the compliance status of the facility.
Effluent Sampling
Is composite sampling flow proportional?
Yes No NA NE
■nn❑
■nnn
n■nn
■❑nn
■ n n n
Yes No NA NE
Yes No NA NE
nn■n
Page # 3

Permit: NCO028037 Owner - Facility: Lexington WTP #1 & 2
Inspection Date: 07/18/2013 Inspection Type: Compliance Evaluation
Effluent Sampling Yes No NA NE
Is sample collected below all treatment units? ■ n fl 11
Is proper volume collected?
■
n
n ❑
Is the tubing clean?
n
n
■ n
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)?
Q
0
■ n
Is the facility sampling performed as required by the permit (frequency, sampling type representative)? ■ U 0 0
Comment:
Upstream / Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? ■ 0 Q 0
Comment:
Flow Measurement - Effluent Yes No NA NE
# Is flow meter used for reporting? ■ ❑ ❑ ❑
Is flow meter calibrated annually? ■ ❑ 0 Cl
Is the flow meter operational? ■ 0 I] 11
(If units are separated) Does the chart recorder match the flow meter? C1 C1 ■ 0
Comment: record of flow meter calibration provided during inspection
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ■ 0 ❑ 0
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ■ 0 a ■
Judge, and other that are applicable?
Comment:
Lagoons
Type of lagoons?
# Number of lagoons in operation at time of visit?
Are lagoons operated in?
# Is a re -circulation line present?
Is lagoon free of excessive floating materials?
# Are baffles between ponds or effluent baffles adjustable?
Are dike slopes clear of woody vegetation?
Are weeds controlled around the edge of the lagoon?
Are dikes free of seepage?
Yes No NA NE
2
Parallel
Page # 4

Permit: NC0028037 Owner - Facility: Lexington WTP #1 & 2
Inspection Date: 07/18/2013 Inspection Type: Compliance Evaluation
Lagoons Yes No NA NE
Are dikes free of erosion? ■ ❑ ❑ ❑
Are dikes free of burrowing animals?
■
❑
❑
❑
# Has the sludge blanket in the lagoon (s) been measured periodically in multiple locations?
■
n
❑
n
# If excessive algae is present, has barley straw been used to help control the growth?
❑
❑
■
❑
Is the lagoon surface free of weeds?
■
❑
❑
❑
Is the lagoon free of short circuiting?
■
❑
❑
❑
Comment: this section used to evaluate the two 24-hr settling ponds.
De -chlorination
Yes No
NA
NE
Type of system ?
Li 4
Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)?
n
n
■
❑
Is storage appropriate for cylinders?
❑
❑
■
❑
# Is de -chlorination substance stored away from chlorine containers?
■
❑
❑
❑
Comment:
Are the tablets the proper size and type? ❑ ❑ ■ ❑
Are tablet de -chlorinators operational? Cl ❑ ■ ❑
Number of tubes in use?
Comment:
Drying Beds
Yes
No
NA
NE
Is there adequate drying bed space?
■
❑
❑
❑
Is the sludge distribution on drying beds appropriate?
■
Cl
❑
❑
Are the drying beds free of vegetation?
■
❑
❑
❑
# Is the site free of dry sludge remaining in beds?
■
❑
❑
❑
Is the site free of stockpiled sludge?
■
❑
❑
❑
Is the filtrate from sludge drying beds returned to the front of the plant?
❑
❑
■
❑
# Is the sludge disposed of through county landfill?
n
n
■
❑
# Is the sludge land applied?
■
n
n
❑
(Vacuum filters) Is polymer mixing adequate? ❑ ❑ ■ ❑
Comment:
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? ■ ❑ ❑ ❑
Page # 5

Permit: NC0028037 Owner - Facility: Lexington WTP #1 & 2
Inspection Date: 07/18/2013 Inspection Type: Compliance Evaluation
Effluent Pipe
Yes No NA NE
Are the receiving water free of foam other than trace amounts and other debris? ■ n ❑ D
If effluent (diffuser pipes are required) are they operating properly?
Comment:
0 0 0 0
Page # 6

��w� L
WDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
Jeffrey H. Edmonds, P.E.
City of Lexington
31 W. Center St
Lexington, NC 27292
Subject: NOTICE OF DEFICIENCY
NOD-2013-MV-0005
Permit No. NCO028037
Lexington WTP #1 & 2
Davidson County
Dear Mr. Edmonds:
Division of Water Quality
Charles Wakild, P.E.
Director
January 9, 2013
John E. Skvarla, III
Secretary
A review of Lexington WTP #1 & 2's monitoring report for October 2012 showed the following deficiency:
Parameter
I Date
Measuring Frequency
Violation
Solids, Total Suspended
1 10/31/12
2 X/ month
Monitored only 1 X
Failure to provide timely and accurate DMRs is a violation of your NPDES permit. If this deficiency is due to a
transcription error, and certifiable data are available to rectify the noncompliance, we ask that you please submit an
amended DMR(s) to the Division of Water Quality. Send a copy of the amended report to:
Central Files and Winston Salem Regional Office
Division of Water Quality Division of Water Quality — Surface Water
1617 Mail Service Center 585 Waughtown St.
Raleigh, NC 27699-1617 Winston-Salem, NC 27107
Unresolved deficiencies may lead to the issuance of a Notice of Violation and/or assessments of civil penalties.
Violations are subject to a civil penalty assessment of up to $25,000.00 per day for each violation. Any efforts
undertaken to bring the facility back into compliance are not an admission of culpability. Your above -mentioned
corrective actions, the degree and extent of harm to the environment, and the duration and gravity of the
deficiency(ies) will be considered in any future actions undertaken.
North Carolina Division of Water Quality, Winston-Salem Regional Office
Location: 585 Waughtown St. Winston-Salem, North Carolina 27107
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
continued on reverse...
NonrthCarolina
Naturallb
An Equal Opportunity 1 Affirmative Action Employer

If you have any questions or require any additional information, please contact Jenifer Carter or myself at (336)
771-5000.
Sincerely,
W. Corey Basinger
Regional Office Supervisor
Surface Water Protection Section
Winston-Salem Regional Office
cc: WSRO SWP Files
SWP Central Files

ffijA:
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E.
Governor Director
June 26, 2012
Mr. Roger Spach, Water Resources Superintendent
City of Lexington
31 W Center St
Lexington, NC 27292
Subject: NOTICE OF DEFICIENCY
NOD-2012-LV-0040
Permit No. NCO028037
Lexington WTP #1 & 2
Davidson County
Dear Mr. Spach:
Dee Freeman
Secretary
A review of Lexington WTP #1 & 2's monitoring report for February 2012 showed the following violations:
Parameter
Date
Limit Value
Reported Value
Limit Type
Flow, in conduit or thru treatment plant
02/29/12
0.467 mgd
0.471 mgd
Monthly Average
Exceeded
Thank you for your attention to this matter. Remedial actions should be taken to correct the cause(s) of this
violation. Unresolved violations may lead to the issuance of a Notice of Violation and/or assessments of civil
penalties by the Division of Water Quality.
If you should have any questions, please do not hesitate to contact Jenifer Carter at [phone].
cc: SWP — Central Files
WSRO Files .
North Carolina Division of Water Quality, Winston-Salem Regional Office
Location: 585 Waughtown St. Winston-Salem, North Carolina 27107
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer
Sincerely,
W. Corey Basinger
Surface Water Regional Supervisor
Winston-Salem Regional Office
Division of Water Quality
Not thCarohna
�a&urallry

fi&;L));I
;
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr. Roger Spach
Water Resources Superintendent
City of Lexington
31 W Center St
Lexington, NC 27292
Subject: NOTICE OF DEFICIENCY
NOD-2012-LV-0025
Permit No. NCO028037
Lexington WTP # 1 & 2
Davidson County
Dear Mr. Spach:
Division of Water Quality
Charles Wakild, P.E.
Director
May 17, 2012
Dee Freeman
Secretary
A review of Lexington WTP #1 & 2's monitoring report for January 2012 showed the following violations:
Parameter
Date
Limit Value
Reported Value
Limit Type
Flow
01/31/12
0.467 mgd
0.486 mgd
Monthly Average Exceeded
Thank you for your attention to this matter. Remedial actions should be taken to correct the cause(s) of this
violation. Unresolved violations may lead to the issuance of a Notice of Violation and/or assessments of civil
penalties by the Division of Water Quality.
If you should have any questions, please do not hesitate to contact Jenifer Carter at [phone].
cc: SWP — Central Files
WSRO Files
North Carolina Division of Water Quality, Winston-Salem Regional Office
Location: 585 Waughtown St. Winston-Salem. North Carolina 27107
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
Sincerely,
W. Corey Basinger
Surface Water Regional Supervisor
Winston-Salem Regional Office
Division of Water Quality
One
NorthCarolina
�gtlCrallly
An Equal Opportunity 1 Affirmative Action Employer

ALT-
A
X�.
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
March 28, 2011
Mr. Roger Spach, Water Resources Superintendent
City of Lexington
28 West Center Street
Lexington, NC 27292
SUBJECT: Compliance Evaluation Inspection
Lexington Water Treatment Plants #1 and #2
Permit No. NCO028037
Davidson County
Dear Mr. Spach:
Dee Freeman
Secretary
A compliance Evaluation Inspection was performed at Lexington's Water Treatment Plants on March 8, 2011 by Jenifer
Carter of the Winston-Salem Regional Office. Ms. Debra Hogan, ORC, was present for the inspection. This type of
inspection consists of two basic parts: a review of facility files and self -monitoring data, and an on -site inspection of the
facility. The following are the findings from the subject inspection:
A review of self -monitoring data since the last inspection, for the period of January 2010 through December 2010,
revealed a few minor pH limit violations, for which no enforcement action was deemed warranted by the Division. Lab
data correlates correctly with data on the submitted Discharge Monitoring Reports.
One of two settling ponds was almost empty and the other about half full. Both appeared to be in decent condition. The
four sludge drying beds are showing signs of wear and tear, with several repairs to the concrete observed. All
four were full and could easily overtop during a heavy rain event. Any sludge that does escape the beds should be
cleaned up and disposed of in accordance with State and Federal regulations, and not be allowed to drain to
surface waters. Several nearby 55-gallon drums and several 250-gallon totes noted during previous inspections have
been relocated to the sludge storage pad, to eliminate risk of spills to the lagoons as required.
The flow meter was calibrated by plant staff though no record of the calibration was found. The permit requires
that the percent deviation be less than 10 percent, so a record of not just the calibration itself but also the error
found during the calibration must be recorded. If the deviation is 10 percent or greater, then the frequency of
calibrations should be increased. If that does not keep the deviation to within 10 percent, then repairs to or
replacement of the flow meter may be needed. Be prepared to show documentation for future calibrations during
the next inspection.
The compliance inspection was satisfactory. Please review the enclosed inspection form for more detailed information.
If you have any questions, please call Jenifer Carter at [phone].
Sincerely,
W. Corey Basinger
Interim Surface Water Regional Supervisor
Winston-Salem Regional Office
Division of Water Quality
enclosure
cc: SWP central files
WSRO files
North Carolina Division of Water Quality, lAinston-Salem Regional Office One
Location: 585 Waughtown St. Winston-Salem, North Carolina 27107 NorthCarolina
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org V j7t,,1r/j11,/
Ar, Equal Opportunity'. Affirmative Action Employer

United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Water Compliance Inspection Report
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 Iul 2 U 31 NCO028037 I11 121 11/03/09 117 181rl 191cl 201
t-J +--' u LJ �J
Remarks
2111111IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII16
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 CIA -------------------- Reserved-------------
67 1 169 70 (3 71(N 72 I N' 73 I ' 174 751 I I I I I I 180
t--t W
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
10:45 AM 11/03/09
09/06/01
Lexington WTP #1 & 2
Exit Time/Date
Permit Expiration Date
NCSR 1844
Lexington NC 27292
11:25 AM 11/03/09
14/04/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Debra Norman Hogan//336-248-5820 /
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Roger Allen Spach,28 W Center St Lexington NC 27292//336-248-3970/ No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Flow Measurement Operations & Maintenance Records/Reports
Self -Monitoring Program N Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Jenifer Carter WSRO WQ//336-771-5000/
19 it
c
Signatt4re,pf Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
f
Arze�L- ri ,,>i�',V/3�: 2ze VZZ/Z--h 2z=G
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

NPDES yr/mo/day Inspection Type 1
31
NCO028037 I11 121
11/03/09 117 181 _1
Section D: Summary of Finding/Comments (Attach additionallssheets of narrative and checklists as necessary)
Page # 2

if
Permit: NCO028037 Owner - Facility: Lexington WTP #1 & 2
Inspection Date: 03/09/2011 Inspection Type: Compliance Evaluation
Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new application? ■ ❑ ❑ ❑
Is the facility as described in the permit? ■ ❑ ❑ ❑
# Are there any special conditions for the permit? ❑ ■ ❑ ❑
Is access to the plant site restricted to the general public? ■ ❑ ❑ ❑
Is the inspector granted access to all areas for inspection? ■ ❑ ❑ ❑
Comment:
Record Keeping
Yes No NA NE
Are records kept and maintained as required by the permit?
❑ ■ ❑ ❑
Is all required information readily available, complete and current?
■ ❑ ❑ ❑
Are all records maintained for 3 years (lab. reg. required 5 years)?
■ ❑ ❑ ❑
Are analytical results consistent with data reported on DMRs?
■ ❑ ❑ ❑
Is the chain -of -custody complete?
■ ❑ ❑ ❑
Dates, times and location of sampling
■
Name of individual performing the sampling
■
Results of analysis and calibration
■
Dates of analysis
■
Name of person performing analyses
■
Transported COCs
■
Are DMRs complete: do they include all permit parameters?
■ ❑ ❑ ❑
Has the facility submitted its annual compliance report to users and DWQ?
■ ❑ ❑ ❑
(if the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift?
❑ ❑ ■ ❑
Is the ORC visitation log available and current?
■ ❑ ❑ ❑
Is the ORC certified at grade equal to or higher than the facility classification?
■ ❑ ❑ ❑
Is the backup operator certified at one grade less or greater than the facility classification?
■ ❑ ❑ ❑
Is a copy of the current NPDES permit available on site?
■ ❑ ❑ ❑
Facility has copy of previous year's Annual Report on file for review?
■ ❑ ❑ ❑
Comment: Flow meter calibration records not available. Calibration must be
documented to show percent deviation, which must be less than 10 percent.
Effluent Sampling
Yes No NA NE
Is composite sampling flow proportional?
0000
Page # 3

Permit: NCO028037 Owner - Facility: Lexington wTP #1 & 2
Inspection Date: 03/09/2011 Inspection Type: Compliance Evaluation
Effluent Sampling
Yes No NA NE
Is sample collected below all treatment units?
■ ❑ ❑ ❑
Is proper volume collected?
■ ❑ ❑ ❑
Is the tubing clean?
❑ ❑ ■ ❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)?
Cl ❑ ■ ❑
Is the facility sampling performed as required by the permit (frequency, sampling type representative)?
■ ❑ ❑ ❑
Comment:
Upstream / Downstream Sampling
Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? ■ ❑ ❑ ❑
Comment:
Flow Measurement - Effluent
Yes No NA NE
# Is flow meter used for reporting?
■ ❑ ❑ ❑
Is flow meter calibrated annually?
■ ❑ ❑ ❑
Is the flow meter operational?
■ ❑ ❑ ❑
(If units are separated) Does the chart recorder match the flow meter?
❑ ❑ ■ ❑
Comment: Told that plant staff did perform flow meter calibration, though no record of
calibration kept. Must record calibration, along with percent deviation found at the time.
Operations & Maintenance
Yes No NA NE
Is the plant generally clean with acceptable housekeeping?
■ ❑ ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ■ ❑ ❑ ❑
Judge, and other that are applicable?
Comment:
Lagoons Yes No NA NE
Type of lagoons?
# Number of lagoons in operation at time of visit? 2
Are lagoons operated in? Parallel
# Is a re -circulation line present? ❑ ❑ ■ ❑
Is lagoon free of excessive floating materials? ■ ❑ ❑ ❑
# Are baffles between ponds or effluent baffles adjustable? ❑ ❑ ■ ❑
Are dike slopes clear of woody vegetation? ■ ❑ ❑ ❑
Are weeds controlled around the edge of the lagoon? ■ ❑ ❑ ❑
Are dikes free of seepage? ■ ❑ ❑ ❑
Page # 4

I
Permit: NC0028037 Owner - Facility: Lexington WTP #1 & 2
Inspection Date: 03/09/2011 Inspection Type: Compliance Evaluation
Lagoons
Yes No NA NE
Are dikes free of erosion?
■ 0 I]
Are dikes free of burrowing animals?
■ ❑ 0 Q
# Has the sludge blanket in the lagoon (s) been measured periodically in multiple locations?
■ 0
# If excessive algae is present, has barley straw been used to help control the growth?
0 0 ■ ❑
Is the lagoon surface free of weeds?
■ 0
Is the lagoon free of short circuiting?
■
Comment: Used to evaluate the two 24-hr. settling ponds.
Drying Beds
Yes No NA NE
Is there adequate drying bed space?
■ Q
Is the sludge distribution on drying beds appropriate?
■
Are the drying beds free of vegetation?
■ ❑
# Is the site free of dry sludge remaining in beds?
■
Is the site free of stockpiled sludge?
■ 0 0
Is the filtrate from sludge drying beds returned to the front of the plant?
0 D ■ 0
# Is the sludge disposed of through county landfill?
■
■ 0 0 0
# Is the sludge land applied?
(Vacuum filters) Is polymer mixing adequate?
■
Comment: All four beds were filled to capacity during the inspection, with no freeboard
remaining. This presents a danger of overtopping furing a rain evenet. Spill kits and/or
other measures should be made available to prevent spills from reaching surface
waters, especially during a rain event.
De -chlorination Yes No NA NE
Type of system ? Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)? 00 No
Is storage appropriate for cylinders? 00 ■
# Is de -chlorination substance stored away from chlorine containers? ■ Q
Comment:
Are the tablets the proper size and type? ■ 0
Are tablet de -chlorinators operational? Q 0 ■ 0
Number of tubes in use?
Comment:
Page # 5

Permit: NCO028037
Inspection Date: 03/09/2011
Owner - Facility: Lexington WTP #1 & 2
Inspection Type: Compliance Evaluation
Effluent Pipe
Is right of way to the outfall properly maintained?
Are the receiving water free of foam other than trace amounts and other debris?
If effluent (diffuser pipes are required) are they operating properly?
Comment:
■❑❑0
■ ❑ 0 ❑
Page # 6

r
RECEIVED
N.C. Dept of ENR
JAN 13 2012
City of Lexington, NC Winston-Salem
Regional Offire
Department of Water Resources
January 10, 2012
System Performance Annual Report - 2011
Lexington Water Treatment Plants # 1 & #2
I. General Information:
(A) Name of Regulated Entity: City of Lexington Water Treatment Plants # 1 & # 2
(B) Responsible person: Roger Spach, Water Resources Superintendent
Cily Of Lexington
28 West Center Street
Lexington, NC 27292
(C) Applicable Permit: NCO028037
(D) Description of treatment process: Filter backwash and basin wash water from
Lexineton Water Treatment Plants # 1 & # 2 are discharged to a treatment_ system
consisting of the following elements - two 24 hour settling ponds, four sludge d dng_beds
and a 40 by 60 foot concrete sludge storage pad with a drain line located at the Lexington
Water Plants No. 1 and No. 2, 2979 Greensboro Street, Lexington, Davidson County.
The discharge from these treatment works is into Abbott's Creek, which is classified as
WS-III waters in the Yadkin -Pee Dee River Basin.
H. Performance:
(A) Description of overall 12 month performance: This treatment s stem performed in
compliance for 2011
(B) Violations:
(1) Permit Limit Violations: none
(2) Monitoring and Reporting Violations: none
(3) Illegal Bypasses of Treatment Facilities: none
(4) Sanitary Sewer Overflows: none
PD d LE p"
4a
a JAN 1 1 2012
DENR-WATER QUALITY
POINT SOURCE Eifl%NCH

r_-
(continued)
(C) Known Environmental Impact of Violations: none
(D) Description of corrective measures taken to correct violations or deficiencies: none
III. Notification: This document is available for review by the public at the Water
Resources Administrative Office at 711 Talbert Boulevard. Public notification of the
availability of this document will be made by notice in the local news paper The
Dispatch in February, by advertisement on the City's cable access channel, and by
presentation to the Lexington Utilities Commission on February 6, 2012. Notice of
this document's availability will be mailed to all of the City of Lexington's utility
customers in February, 2012.
IV. Certification:
The information in this report was prepared by me and is accurate and complete to the
best of my knowledge:
c ater Resources Superintendent date: lv
Roger Spach

City of Lexington, North Carolina
Department of Water Resources
January 10, 2012
System Performance Annual Report
NC Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: System Performance Annual Reports - 2011
City Of Lexington
Davidson County
Dear Sirs:
Attached are three copies of the 2011 System Performance Annual Reports for the
following wastewater and wastewater related activities of the City of Lexington, NC.
Permit #
WQ0023213
WQ0001318
NCO028037
WQ0016165
NCO055786
WOCS0042
Please direct any questions regarding these to my attention at 336-248-3970 or at
rogersklexingtonnc.net.
Sincerely,
Roger Spach
Water Resources Superintendent
RS/rs
Attachments:
rLg
�IC '�
JAN 11 2012
CENR-WATER QUALITY
POINT SOURCE BRANCH

to
J ems- C
1
RECEIVE::;
N.C. Deat. of
JAN 2 4 2011
YlinStcr.alp
Regicnzl
January 10, 2011
System Performance Annual Report - 2010
Lexington Water Treatment Plants # 1 & #2
I. General Information:
(A) Name of Regulated Entity: City of Lexington Water Treatment Plants # 1 & # 2
(B) Responsible person: Roomer _Spach, Water Resources Superintendent
Cijy Of Lexin tg_on
28 West Center Street
Lexington, NC 27292
(C) Applicable Permit: NCO028037
(D) Description of treatment process: Filter backwash and basin wash water from
Lexington Water Treatment Plants # 1 & # 2 are_discharged to a treatment system
consisting of the following elements - two 24 hour settling ponds, four sludge drying beds
and a 40 by 60 foot concrete sludge storage pad with a drain line located at the Lexington
Water Plants No. 1 and No. 2 2979 Greensboro Street, Lexington, Davidson County.
The discharge from these treatment works is into Abbott's Creek, which is classified as
WS-III waters in the Yadkin -Pee Dee River Basin.
H. Performance:
(A) Description of overall 12 month performance: This treatment s sy tem performed in
compliance for 2010 with one exception
(B) Violations: no � �� D
(1) Permit Limit Violations: 1 BAN 14 2011
(2) Monitoring and Reporting Violations: none
(3) Illegal Bypasses of Treatment Facilities: none ,--.;R_AA1 QUALITY
(4) Sanitary Sewer Overflows: none ' COURCE BRANCH
(continued)

140
(C) Known Environmental Impact of Violations: none
(D) Description of corrective measures taken to correct violations or deficiencies:
Operators are to confirm data in the future before reporting it
III. Notification: This document is available for review by the public at the Water
Resources Administrative Office at 711 Talbert Boulevard. Public notification of the
availability of this document will be made by notice in the local news paper The
Dispatch in Februar,, by advertisement on the City's cable access channel and by
presentation to the Lexington Utilities Commission on February 7, 2011. Notice of
this document's availability will be mailed to all of the City of Lexington's utility
customers in Februar , 2011.
IV. Certification:
The information in this report was prepared by me and is accurate and complete to the
best of my knowledge:
Water Resources Superintendent date:
Ro er Sp ch

R CENFD
LEC i C. Dept of ENR
ax ` MAR 19 20M
THE CITY OF * LEXINGTOI
ti� Regional Salem
NORTH °°covti CAROLINA _ Regional ofFce
"Serving The Community Since 1828"
Water Resources Department
28 W. Center Street
Lexington, NC 27292
March 17, 2010
Mr. Steve Tedder
NC DENR
Winston Salem Regional Office
585 Waughtown Street
Winston Salem, NC 27107-2241
RE: February 17, 2010 Letter:
Compliance Evaluation Inspection — Action Required
Lexington Water Treatment Plants #1 & #2
Permit #NC0028037
Davidson County
Telephone [phone]
Fax [phone]
SUBJECT: Plans for Proper Disposal of Above Ground Storage Containers and
Provide Secondary Contaminant
Dear Mr. Tedder:
Per the above letter we have taken the following action:
All containers will be stored on the sludge storage pad until properly disposed of
per the city's rules on disposing city property.
Please forward comments to my attention at ro ers j? iexingiormc.net or caii 336-24$-
3970.
Sincerely,
Roger Spach, Water Resources Superintendent
cc: Rick Comer, Public Works Director
James Gray, Water Plant Supervisor
Jennifer Carter, WSRO

��
NCDENR i
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
February 24, 2010
CERTIFIED MAIL 7007-0710-0000-5376-8188
RETURN RECEIPT REQUESTED
Mr. Jeffrey H. Edmonds, P.E.
City of Lexington
31 W Center Street
Lexington, North Carolina 27292
Dear Mr. Edmonds:
=�EiVED
Deot. of ENR
FEB 2 5 2010
Subject: NOTICE OF VIOLATION
Lexington WTP 1 &2
NPDES Permit NCO028037
Davidson County
NOV-2010-LR-0018
Winston-Salem
Regional Office
Dee Freeman
Secretary
This is to inform you that the Division of Water Quality has not received your monthly monitoring report
for December 2009. This is in violation of Part II, condition D(2) of the NPDES permit, as well as 15A
NCAC 2B .506(a), which requires the submittal of Discharge Monitoring Reports no later than the last
calendar day following the reporting period. Failure to submit reports as required will subject the violator
to the assessment of a civil penalty of up to $25,000 per violation- You will be considered noncompliant
with the self -monitoring requirements of your NPDES permit until the report has been submitted.
To prevent further action, please submit said report within fifteen (15) days of receipt of this notice.
Additionally, this letter provides notice that this office will recommend the assessment of civil penalties if
future reports are not received within the required time frame during the next twelve (12) reporting
months. The Division must take these steps because timely submittal of discharge monitoring reports is
essential to the efficient operation of our water quality programs. We appreciate your assistance in this
matter. If you have any questions about this letter or discharge monitoring reports, please contact me at
919-807-6388.
Sincerely,
a een Scardina
cc: Maureen Scardina, NPDES Unit
I-'-DWQ Winston-Salem Regional Office Supervisor, Surface Water Protection
Central Files
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] l FAX: [phone] Customer Service:1-877-623-6748
Internet: www.ncwaterguality.org
An Equal Opportunity 1 Affirmative Action Employer
NorthCarolina
Naturally

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
February 17, 2010
Mr. Roger Spach, Water Resources Superintendent
City of Lexington
28 West Center Street
Lexington, NC 27292
SUBJECT: Compliance Evaluation Inspection — ACTION REQUIRED
Lexington Water Treatment Plants #1 and #2
Permit No. NCO028037
Davidson County
Dear Mr. Spach:
Dee Freeman
Secretary
A compliance Evaluation Inspection was performed at Lexington's Water Treatment Plants on January 19, 2010 by
Jenifer Carter of the Winston-Salem Regional Office. Ms. Debra Hogan, ORC, was present for the inspection.
This type of inspection consists of two basic parts: a review of facility files and self -monitoring data, and an on -site
inspection of the facility. The following are the findings from the subject inspection:
A review of self -monitoring data since the last inspection, for the period of January 2008 through December 2009,
did not reveal any permit limit violations.
A field parameter certification is on file, and lab data correlates correctly with data on the submitted on the
Discharge Monitoring Reports.
The two settling ponds and sludge drying beds were well -maintained and operating properly during the inspection.
The sludge storage pad was not being used at the time.
There were still several 55-gallon drums and several 250-gallon totes being stored next to the lagoons, as noted in
the last inspection report. Some drums were not empty and some were in very poor condition, with labels no longer
visible.
Within 30 days of receipt of this letter, please provide this office with a plan for the proper disposal of these
above -grounds storage containers and/or a plan to provide secondary containment for them, as a means to
preventing any of their contents from co -mingling with stormwater and consequently Waters of the State.
With the above -mentioned house -keeping issue in mind, the compliance inspection was satisfactory overall. If you
have any questions, please call Jenifer Carter at [phone].
Sincerely,
Steve W. Tedder
Surface Water Regional Supervisor
Winston-Salem Regional Office
Division of Water Quality
enclosure
cc: SWP central files
A$RO files 4
North Carolina Division of Water Quality, Winston-Salem Regional Office One
Location: 585 Waughtown St. Winston-Salem, North Carolina 27107 NorthCarolina
Phone: [phone] FAX: [phone] Customer Service: 1-877 623-6748
Internet: www.ncwaterquality.org ,%1 %Zjh1r171111
An Equal Opportunity `. Affirmative Action E nployer

United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Water Compliance Inspection Report
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 I NI 2 15I 3I N00028037 111 121 10/01/19 117 181 CI 191 SI 20I II
Remarks
21IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII1116
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ------------ -------------- Reserved ----------------------
67 I 169 70131 711 NJ 721 N I 73 W 74 751 I I I I I I 180
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
10:00 AM 10/01/19
09/06/01
Lexington WTP #1 & 2
Exit Time/Date
Permit Expiration Date
NCSR 1844
Lexington NC 27292
11:00 AM 10/01/19
14/04/30
Name(s) of Onsite Representative (s)rfitles(s)/Phone and Fax Number(s)
Other Facility Data
Debra Norman Hogan//336-248-5820 /
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Roger Allen Spach,28 W Center St Lexington NC 27292//336-248-3970/ No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit E Flow Measurement Operations & Maintenance 0 Records/Reports
Self -Monitoring Program 0 Facility Site Review Effluent/Receiving Waters
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Jenifer Car r WSRO WQ//336-771-5000/
010
Signature of nagement Q Agency/Office/Phone and Fax Numbers Date
,/viewer
j
11-Ir
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

v
NPDES yr/mo/day Inspection Type
3I NCO028037 I11 12, 10/01/19 117 18ICI
(cont.)
Section D Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
There were still several 55-gallon drums and several 250-gallon totes being stored next to the lagoons, as
noted in the last inspection report. Some drums were not empty and some were in very poor condition, with
labels no longer visible.
Within 30 days of receipt of this letter, please provide this office with a plan for the proper disposal of these
above -grounds storage containers and/or a plan to provide secondary containment for them, as a means to
preventing any of their contents from co -mingling with stormwater and consequently Waters of the State.
Page # 2

f
Permit: NCO028037 Owner - Facility: Lexington WTP #1 & 2
Inspection Date: 01/19/2010 Inspection Type: Compliance Evaluation
Permit
Yes
No
NA
NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new application?
■
0
0
❑
Is the facility as described in the permit?
n
■
n
n
# Are there any special conditions for the permit?
■
n
n
n
Is access to the plant site restricted to the general public?
■
n
n
n
Is the inspector granted access to all areas for inspection?
■
n
n
n
Comment: New permit issued, effective June 1, 2009, expiring on April 30, 2014.
Record Keeping
Yes
No
NA
NE
Are records kept and maintained as required by the permit?
■
n
n
n
Is all required information readily available, complete and current?
■
n
n
n
Are all records maintained for 3 years (lab. reg. required 5 years)?
■
n
n
n
Are analytical results consistent with data reported on DMRs?
■
n
n
n
Is the chain -of -custody complete?
■
o
n
n
Dates, times and location of sampling
■
Name of individual performing the sampling
■
Results of analysis and calibration
■
Dates of analysis
■
Name of person performing analyses
■
Transported COCs
■
Are DMRs complete: do they include all permit parameters?
■
n
n
n
Has the facility submitted its annual compliance report to users and DWQ?
■
n
n
n
(If the facility is = or > 5 MGD permitted Flow) Do they operate 2417 with a certified operator on each shift?
n
n
■
❑
Is the ORC visitation log available and current?
■
n
n
n
Is the ORC certified at grade equal to or higher than the facility classification?
■
n
n
n
Is the backup operator certified at one grade less or greater than the facility classification?
■
O
❑
n
Is a copy of the current NPDES permit available on site?
■
n
n
n
Facility has copy of previous year's Annual Report on file for review?
■
n
n
n
Comment:
Effluent Sampling
Yes
No
NA
NE
Is composite sampling flow proportional?
■
n
n
n
Page # 3

•
Permit: NCO028037 Owner - Facility: Lexington WTP #1 & 2
Inspection Date: 01/19/2010 Inspection Type: Compliance Evaluation
Effluent Sampling
Yes
No
NA
NE
Is sample collected below all treatment units?
■
D
D
D
Is proper volume collected?
■
n
n
In
Is the tubing clean?
n
n
■
n
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)?
n
n
■
D
Is the facility sampling performed as required by the permit (frequency, sampling type representative)? ■ n n
Comment:
Upstream / Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? ■ n D D
Comment:
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ■ n D
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ■ D n n
Judge, and other that are applicable?
Comment:
Lagoons
Yes No
NA
NE
Type of lagoons?
# Number of lagoons in operation at time of visit?
2
Are lagoons operated in?
Parallel
# Is a re -circulation line present?
D
D
■
D
Is lagoon free of excessive floating materials?
■
n
n
n
# Are baffles between ponds or effluent baffles adjustable?
n
n
■
D
Are dike slopes clear of woody vegetation?
■
n
n
n
Are weeds controlled around the edge of the lagoon?
■
n
n
n
Are dikes free of seepage?
■
D
D
D
Are dikes free of erosion?
■
n
n
n
Are dikes free of burrowing animals?
■
n
n
n
# Has the sludge blanket in the lagoon (s) been measured periodically in multiple locations?
■
n
n
n
# If excessive algae is present, has barley straw been used to help control the growth?
n
n
■
n
Is the lagoon surface free of weeds?
■
n
n
n
Is the lagoon free of short circuiting?
■
n
n
n
Page # 4

r
Permit: NCO028037 Owner - Facility: Lexington VVTP #1 & 2
Inspection Date: 01/19/2010 Inspection Type: Compliance Evaluation
Lagoons
Yes
No
NA
NE
Comment: Two settling ponds are operated in parallel.
De -chlorination
Yes
No
NA
NE
Type of system ?
LQ
Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)?
n
n
■
n
Is storage appropriate for cylinders?
n
n
■
n
# Is de -chlorination substance stored away from chlorine containers?
■
n
00
Comment:
Are the tablets the proper size and type?
n
n
■
n
Are tablet de -chlorinators operational?
n
n
■
n
Number of tubes in use?
Comment:
Flow Measurement - Effluent
Yes
No
NA
NE
# Is flow meter used for reporting?
■
n
n
n
Is flow meter calibrated annually?
n
n
■
n
Is the flow meter operational?
■
n
n
n
(If units are separated) Does the chart recorder match the flow meter?
n
n
■
n
Comment: Flow -proportional sampling available as of December 2009. The meter will
be calibrated at least annually.
Effluent Pipe
Yes
No
NA
NE
Is right of way to the outfall properly maintained?
■
n
n
n
Are the receiving water free of foam other than trace amounts and other debris?
■
n
n
n
If effluent (diffuser pipes are required) are they operating properly?
n
n
■
❑
Comment:
Page # 5

Feb 17 10 10:44a Waste Treatment Plant 357-7369 P•1
t�
AAIR�
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
THE NC WW/GW LABORATORY CERTIFICATION PROGRAM REQUESTS THAT YOU UPDATE THE FOLLOWING INFORMATION.
YOUR CERTIFICATION IS IN FORCE UNTIL DEC. 31, 2010. PERFORMANCE EVALUATION SAMPLE RESULTS FOR CERTIFIED
PARAMETERS ARE DUE BY OCTOBER 31, 2010. PLEASE PRINT REQUESTED INFORMATION.
Lab Name:
NC W W/GW LC Certificate Number:
—IA-- L-�- A
L -T3 6::)z ,
Lab Type: (Circle one) unicpal1/,[ndustr(i►a Commercial Field Commercial Other:
Lab Contact: (M. Ms.
Lab Manager: Mr. Ms.) (Optional for Field Labs) O 2
Lab Supervisor: (Mr -Ms.)
Lab QA Coordinator: (Mr.Ms.) �i �� o`A t? 2
Lab Physical Location:
-- (-�, A�L�
�tl►��
Mail Address: �= L� L-21 "" " - - 29 2
State:
`Lip Coder .L County:_ 1 l -bSD1J �7 7�
Telephone #/ext.: y) �'� ��� Fax Number : � (O' yZ4J r --
Email Address(
I.
11''a4o fl 1'l C
EPA Lab Code: N Ci Do 1 C�),
(This is the EPA Lab code for your facility's lab not vendor or contract lab.)
NPDES permit number(s): LRe u w TIC rC o() S
6 Drv4yt - (2e LA 0rv> - l�)OU2 3 Ll3
�-EYl FJ6-FO IO e vD --�APv ST-- - Imo' l� Coo 3 r 8
Signature:
Z rr tt67ToA) FP --h( / W ot,/ /vC'va 9 41S7
mil/ nt! (-) T'o`U -5�Z W IUD Z�Z - /Vc G /Iva/ r-)6
) It l Aw l 1 h 7 - - Date: � zf --Zo/D
d
Print Name: 1 �G ICA 7ye,7`y
RETURN WITHIN 30 DAYS TO: 1623 MAIL SERVICE CENTER, RALEIGH, NC, 27699-1623
DENR DWQ Laboratory Section NC Wastewater/Groundwater Laboratory Certification Branch
1623 Mal Service Center, Raleigh, North Carolina 27699-1623
Location: 4405 Reedy Creek Road. Ralegh, North Carolina 27607-6445
Phone: [phone] FAX [phone]
Internet www.dNlab.orq
NonrthCarolina
Naturally

January 12, 2010
System Performance Annual Report - 2009
Lexinaton Water Treatment Plants # 1 & #2
I. General Information:
RECEIVED
N.C. DeDt. of ENR
JAN 2 12010
Winston•Salem
Regional office
(A) Name of Regulated Entity: City of Lexington Water Treatment Plants # 1 & # 2
(B) Responsible person: Roger Spach, Water Resources Superintendent
City Of Lexington
28 West Center Street
Lexington, NC 27292
(C) Applicable Permit: NCO028037
(D) Description of treatment process: Filter backwash and basin wash water from
Lexington Water Treatment Plants # 1 & # 2 are discharged to a treatment system
consisting of the following elements - two 24 hour settling ponds, four sludge drying beds
and a 40 by 60 foot concrete sludge storage pad with a drain line located at the Lexington
Water Plants No. 1 and No. 2 2979 Greensboro Street, Lexington, Davidson County.
The discharge from these treatment works is into Abbott's Creek, which is classified as
WS-III waters in the Yadkin -Pee Dee River Basin.
II. Performance:
(A) Description of overall 12 month performance: This treatment system performed in
compliance for 2009
(B) Violations:
(1) Permit Limit Violations: none
(2) Monitoring and Reporting Violations: none
(3) Illegal Bypasses of Treatment Facilities: none
(4) Sanitary Sewer Overflows: none

(continued)
(C) Known Environmental Impact of Violations: none
(D) Description of corrective measures taken to correct violations or deficiencies: Not
applicable
III. Notification: This document is available for review by the public at the Water
Resources Administrative Office at 711 Talbert Boulevard. Public notification of the
availability of this document will be made by notice in the local news paper The
Dispatch in February, by advertisement on the City's cable access channel, and by
presentation to the Lexington Utilities Commission on February 1, 2010. Notice of
this document's availability will be mailed to all of the City of Lexington's utility
customers in FebrgM, 2010
IV. Certification:
The information in this report was prepared by me and is accurate and complete to the
best of my knowledge:
Water Resources Superintendent date: / �I1
Rog6r Spac

p� LEXJ�
4
THE CITY OF LEXINGTON
NORTH � CAROLINA
CAR
"Serving The Community Since 1828"
Water Resources Department
28 W. Center Street
Lexington, NC 27292
March 9, 2009
Ms. Julie Grzyb
NC DENR
NPDES Unit, Western Program
Division of Water Quality
1617 Mail Service Center
Raleigh NC 27699-1617
RE: Draft NPDES Permit
Permit #NC0028037
Lexington WTP # 1 & #2
Davidson County
Dear Ms. Grzyb:
RECEIVED
i
MAR 1 1 2009
Reg cnal Offc,
Telephone [phone]
Fax [phone]
I have reviewed the proposed changes for the above permit and am requesting two
revisions:
I. Whole effluent toxicity:
I am requesting that the months for testing to be changed from January, April,
July, and October to the months of February, May, August and November.
We presently monitor for this parameter at our Regional Wastewater Treatment
Plant (NC0055786) in the months of February, May, August and November. This
is a parameter for which we "farm out" testing to a commercial laboratory. The
requested change would allow us to better keep track of when to perform this
analysis. It will also save an additional "pick-up" fee by the commercial
laboratory. This amounts to $50 per quarter.
Lexington as well as other cities is coming under increasing demands for testing
by DWQ and Public Water Supply. It is becoming increasingly difficult to keep
up with these demands. Anything to simplify this system will be helpful as a
missed sample is considered a violation.

5
II. Flow sampling changed from instantaneous to continuous and recorded:
We are requesting that this be delayed until December 2009. The equipment
involved is an unbudgeted capital expenditure. We will probably have to spend
more than $10,000 for this. The metering installation will have to be budgeted in
the next fiscal year's budget. Our fiscal year starts July 1. We must be able to
obtain the equipment and install it. I am fairly certain that we will have to obtain
our authorization to construct before we even begin installing the metering devise.
Thank you for your consideration of this matter. I may be contacted at 336-248-3970 or
ro ersglexi.ngtonnc.net.
Sincerely,
Roger Spach
Water Resources Superintendent
RS/kb
cc: Rick Comer, Public Works Director
Gisele Comer, Pretreatment Coordinator
James Gray, Utilities Plant Supervisor
Jennifer Carter, WSRO

RECEIVED — -
N.C. Geot. of ENR
FEB 0 6 2009
Winston-Salem
Regional Office
January 12, 2009
RECEIVED
F ? _ 3 2009
DENR - WATER QUALITY
POINT SOURCE BRANCH
System Performance Annual Report - 2008
Lexington Water Treatment Plants # 1 & #2
I. General Information:
(A) Name of Regulated Entity: City of Lexington Water Treatment Plants # 1 & # 2
(B) Responsible person: Roger Spach, Water Resources Superintendent
City Of Lexington
28 West Center Street
Lexington, NC 27292
(C) Applicable Permit: NCO028037
(D) Description of treatment process: Filter backwash and basin wash water from
Lexington Water Treatment Plants # 1 & # 2 are discharged to a treatment system
consisting of the following elements - two 24 hour settling ponds, four sludge drying beds
and a 40 by 60 foot concrete sludgestorage pad with a drain line located at the Lexington
Water Plants No. 1 and No. 2 2979 Greensboro Street, Lexington, Davidson County.
The discharge from these treatment works is into Abbott's Creek, which is classified as
WS-III waters in the Yadkin -Pee Dee River Basin.
H. Performance:
(A) Description of overall 12 month performance: This treatment system performed in
compliance for 2007
(B) Violations:
(1) Permit Limit Violations: none
(2) Monitoring and Reporting Violations: one (missed collecting one
downstream sample in January)
(3) Illegal Bypasses of Treatment Facilities: none
(4) Sanitary Sewer Overflows: none RECEIVED /
�9gm&r p,.,, DE / DVVQ
^tion
JAN 27 Zpp.9

(continued)
(C) Known Environmental Impact of Violations: none
(D) Description of corrective measures taken to correct violations or deficiencies: Not
gpplicable
III. Notification: This document is available for review by the public at the Water
Resources Administrative Office at 711 Talbert Boulevard. Public notification of the
availability of this document will be made by notice in the local news paper The
Dispatch in February by advertisement on the City's cable access channel and by
presentation to the Lexington Utilities Commission on February 2, 2009. Notice of
this document's availability will be mailed to all of the City of Lexington's utility
customers in February, 2008
IV. Certification:
The information in this report was prepared by me and is accurate and complete to the
best of my knowledge:
ev�l, Water Resources Superintendent date: 1 1z O
Roger Spach

Beverly Eaves Perdue
Governor
5435
Ms. Debra Hogan
Lexington WTP
28 West Center Street
Lexington, NC 27292-
WDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Coleen H. Sullins
Director
December 23, 2009
SUBJECT: Wastewater/Groundwater Laboratory Certification Renewal
FIELD PARAMETERS ONLY
Dear Ms. Hogan:
Dee Freeman
Secretary
DEC 3 12009 1
Winston-Salem
Regional Office
The Department of Environment and Natural Resources, in accordance with the provisions of NC GS 143-215-
.3 (a) (10), 15 NCAC 2H .0800, is pleased to renew certification for your laboratory to perform specified
environmental analyses required by EMC monitoring and reporting regulations 15 NCAC 2B .0500, 2H .0900 and
2L .0100, .0200, .0300, and 2N .0100 through .0800.
Enclosed for your use is a certificate describing the requirements and limits of your certification. Please review
this certificate to insure that your laboratory is certified for all parameters required to properly meet your
certification needs.
Please contact us at 919-733-3908 if you have questions or need additional information.
Sincerely,
Pat Donnelly
Certification Branch Manager
Laboratory Section
Enclosure
cc: Ramon Cook
Dana Satterwhite
Winston - Salem Regional Office 46/
DENR DWQ Laboratory Section NC Wastewater/Groundwater Laboratory Certification Branch
1623 Mail Service Center, Raleigh, North Carolina 27699-1623
Location: 4405 Reedy Creek Road. Raleigh, North Carolina 27607-6445
Phone: [phone] FAX: [phone]
Internet: www.dwqlab.org
NorthCarolina
Naturallb
An Equal Opportunity lAffirmativeAction Employer Customer Service:1-877-623-6748 www.ncwaterquality.org

STATE OF NORTH CAROLINA DEPARTMENT OF THE
ENVIRONMENT AND NATURAL RESOURCES
0
DIVISION OF WATER QUALITY
LABORATORY CERTIFICATION PROGRAM
In accordance with the provisions of N.C.G.S. 143-215.3 (a) (1), 143-215.3 (a)(10) and NCAC 2H.0800:
2010
LEXINGTON WTP
Is hereby certified to perform environmental analysis as listed on Attachment I and report monitoring data to DWQ for
compliance with NPDES effluent, surface water, groundwater, and pretreatment regulations.
By reference 15A NCAC 2H .0800 is made a part of this certificate.
This certificate does not guarantee validity of data generated, but indicates the methodology, equipment, quality control procedures,
records, and proficiency of the laboratory have been examined and found to be acceptable.
This certificate shall be valid until December 31, 2010
Certificate N 5435 V
Pat Donnelly

Lab Name:
Address:
Attachment
North Carolina Wastewater/Groundwater Laboratory Certification
Certified Parameters Listing
Lexington WTP Certificate Number: 5435
28 West Center Street Effective Date: 01/01/2010
Lexington, NC 27292- Expiration Date: 12/31/2010
Date of Last Amendment:
The above named laboratory, having duly met the requirements of 15A NCAC 21-1.0800, is hereby certified for the measurement of the parameters listed below.
� CERTIFIED PARAMETERS
INORGANICS
RESIDUAL CHLORINE
Std Method 4500 Cl G
This certification requires maintance of an acceptable quality assurance program, use of approved methodology, and satisfactory performance on evaluation samples. Laboratories are
subject to civil penalties and/or decertification for infractions as set forth in 15A NCAC 21-1.0807.

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>Vw�•_
April 25, 2005
Mr. Roger Spach, Water Resources Superintendent
City of Lexington
28 W. Center Street
Lexington, North Carolina 27292
Dear Mr. Spach:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
SUBJECT: Authorization to Construct
A to C No. 028037A01
City of Lexington
Dechlorination Facilities
Davidson County
Alan W. Klimek, P.E. Director
Division of Water Quality
APR 28 2005
W�nston.gal�m
Regional Ofn,,
A fast track application for Authorization to Construct dechlorination facilities was
received on April 22, 2005, by the Division. Authorization is hereby granted for the construction
of modifications to the existing Lexington Water Treatment Plants # 1 and #2, with discharge of
treated wastewater into Abbotts Creek of the Yadkin River in the Yadkin -Pee Dee River Basin.
This authorization results in no increase in design or permitted capacity and is awarded
for the construction of the following specific modifications:
Liquid sodium bisulfite dechlorination system with schedule 80 PVC piping
pursuant to the fast track application received on April 22, 2005, and in
conformity with the Minimum Design Criteria for Dechlorination Facilities.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NCO028037 issued April 15, 2004, and shall be subject to revocation unless
the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0028037.
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as may
be required by this Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Winston-Salem Regional Office, telephone number [phone], shall be notified
at least forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617
Internet: h2o.enr.state.nc.us 512 N. Salisbury St. Raleigh, NC 27604
An Equal Opportunity/Affirmative Action Employer— 50% Recycledl10% Post Consumer Paper
NamNa` Carolina
turally
Phone [phone] Customer Service
FAX [phone]

Roger Spach, Water Resources Superintendent
April 25, 2005
Page 2
Pursuant to 15A NCAC 2H .0140, upon completion of construction and prior to operation of
these permitted facilities, the completed Engineering Certification form attached to this permit shall be
submitted to the address provided on the form.
`'�`► 4S on classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at least
equivalent to or greater than the classification assigned to the wastewater treatment facilities by
the Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T 15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and, when applicable, the North
Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division of Water Quality in accordance
with North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from
complying with any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction.

Roger Spach, Water Resources Superintendent
April 25, 2005
Page 3
If you have any questions or need additional information, please do not hesitate to contact
Cecil G. Madden, Jr., P.E. at telephone number [phone].
Sincerely,
elanW.ek, P.E.
MH/cgm
cc: Davidson County Health Department
Winston-Salem Regional Office, Surface Water Protection Section
Technical Assistance and Certification Unit
Daniel Blaisdell, P.E.
Point Source Branch, NPDES Program
Cecil G. Madden, Jr., P.E.
Mark Hubbard, E.I.
A to C File

City of Lexington
A to C No. 028037AOI
Issued April 25, 2005
Engineer's Certification
I, , as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to observe (periodically/weekly/full time)
the construction of the modifications and improvements to the Lexington Water Treatment Plants
#1 and #2, located on State Road 1844 in Davidson County for the City of Lexington, hereby
state that, to the best of my abilities, due care and diligence was used in the observation of the
following construction:
Liquid sodium bisulfite dechlorination system with schedule 80 PVC piping
pursuant to the fast track application received on April 22, 2005, and in
conformity with the Minimum Design Criteria for Dechlorination Facilities.
I certify that the construction of the above referenced project was observed to be built
within substantial compliance and intent of the approved plans and specifications.
Signature
Date
Registration No.
Send to: Construction Grants & Loans
DENR/DWQ
1633 Mail Service Center
Raleigh, NC 27699-1633

State of North Cawwia
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
Roger Spach
City of Lexington
28 West Center Street
Lexington, North Carolina 27292
Dear Mr. Spach:
A��
DEN R
RECEIVED
N.C, Dept. of EHNR
May 25, 1998 J U L 0 2 1998
Winsto t- Salem
Regional Office
Subject: Authorization to Construct
Permit No. NCO028037
Project No. AC0028037 ,
Sludge Storage Pad
Lexington Water Plants #1 & #2
Davidson County
A letter of request for an Authorization to Construct was received March 18, 1998 by the Division, and final
plans and specifications for the subject project have been reviewed and found to be satisfactory.
Authorization is hereby granted for the construction and installation of the following:
• a 40' x 60' concrete sludge storage pad with drain line
at Lexington Water Plants #1 and #2, with discharge of treated water into Abbotts Creek in the Yadkin -Pee
Dee River Basin.
This Authorization to Construct is issued in accordance with Part III, Paragraph A. of NPDES Permit No.
NCO028037 issued October 1, 1993 and shall be subject to revocation unless the water treatment facilities
are constructed in accordance with the conditions and limitations specified in Permit No. NC0028037.
Any sludge generated from this facility must be disposed of in accordance with North Carolina General
Statute 143-215.1 and in a manner approved by the North Carolina Division of Water Quality.
In the event that the facility fails to perform satisfactorily, including the creation of nuisance conditions, the
Permittee shall take immediate corrective actions, including those as may be required by this Division, such
as the construction of additional or replacement water treatment or disposal facilities.
The Winston-Salem Regional Office, telephone number [phone], shall be notified at least forty-eight
(48) hours in advance of operation of the installed facilities so that an in -place inspection can be performed.
Such notification to the regional supervisor shall be made during normal office hours from 8:00 a.m. until
5:00 p.m., Monday through Friday, excluding State Holidays.
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

Lexington Water Plants No. do. 2
Permit No. NC0028037
Project No. AC0028037
Authorization to Construct (May 25, 1998)
Upon completion of construction and prior to operation of this permitted facility, a certification must be
received from a professional engineer certifying that the permitted facility has been installed in accordance
with the NPDES Permit, this Authorization to Construct, and the approved plans and specifications. Please
mail the certification to the NPDES Unit, P.O. Box 29535, Raleigh, NC 27626-0535.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the life of
the facility.
Failure to abide by the requirements contained in this Authorization to Construct may subject the Permittee
to an enforcement action by the Division of Water Quality in accordance with G.S. 143-215.6A to 143-
215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from complying with any
and all statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local,
state, and federal) that have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have any questions or
need additional information, please contact Bethany Bolt at telephone number [phone], extension
551. '
Sincerely,
A. Preston Howard, Jr., P.E.
Enclosure
cc: Central Files
Winston-Salem Regional Office/Water Quality Section
Technical Assistance and Certification Unit
NPDES Unit

Lexington Water Plants No. io. 2
Permit No. NCO028037
Project No. AC0028037
Authorization to Construct (May 25, 1998)
ENGINEER'S CERTIFICATION*
I, , as a duly registered Professional Engineer in the State of
North Carolina, having been authorized to observe (periodically, weekly, full time) the
construction of the project, ,
Project Name Location
for the Permittee hereby state that, to the best of my abilities, due care and diligence was
used in the observation of the construction such that the construction was observed to be
built within substantial compliance and intent of the approved plans and specifications.
Signature
Date
Registration No.
*Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted
facility has been installed in accordance with the NPDES Permit, this Authorization to
Construct, and the approved plans and specifications. Please mail the certification to the
NPDES Unit, P.O. Box 29535, Raleigh, NC 27626-0535.

cc: Permits and Engineering
County Health Department
Central Files
W SRO
SOC PRIORITY PROJECT: YES _ NO -XL
IF Yes, SOC No,
To: Permits and Engineering Unit
Water Quality Section
Attention: (Phyllis Cameron)
AUTHORIZATION TO CONSTRUCT
NPDES PERMIT REPORT AND RECOMMENDATIONS
Date: April 21. 1998
County: Davidson
Permit No. NC: 000028037
PART I GENERAL INFORMATION
1. Facility Name and Current Address:
City of Lexington
Water Treatment Plants # I and #2
28 West Center Street
Lexington, N.C. 27292
2
3
4
_5
Date of most recent NPDES Staff Report: (attach copy) The most recent staff report is dated
February 25, 1993.
Changes since previous action on NPDES Permit: NA
Verify Discharge Point(s) on plans with current NPDES Permit. List for all discharge points.
Latitude: 350 51' 13"'
Longitude: 800 I F 50"
Attach a USGS map extract and indicate treatment facility site and discharge point on map.
U.S.G.S. Quad No. D18SW U.S.G.S. Name Lexington West
Treatment plant classification: (attach completed rating sheet)
Class I

PART H - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
(PROVIDE THE FOLLOWING INFORMATION IF IT IS NOT ON THE PREVIOUS NPDES
STAFF REPORT)
Existing treatment facility:
a. What is the current permitted capacity of the facility? No limit.
b. Date(s) and construction activities allowed by previous Authorizations to Construct
issued in the previous two (2) years: NA
c: What is the actual treatment capacity of the current facility (design volume)?
The WTP can produce 3.7 MGD of finished water.
d. Please provide a description of existing or substantially constructed wastewater
treatment facilities.
2. Please provide a description of proposed wastewater treatment facilities: The proposed
facility will consist of a 40' x 60' concrete pad with an 8" concrete block wall enclosing three
sides of the pad except a 40' section which will be the entrance for the sludge removal
equipment. A 4 drain line is attached to the concrete pad and will drain by gravity any liquid
from the sludge back into the storage ponds of the water plant's sludge treatment facility.
3. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DWQ permit no.
Residual Contractor:
Telephone No.
b. Residuals stabilization: PSRP _ PFRP _ Other
Landfill: The solids removed from the drying beds and proposed sludge storage pad
are disposed of into the county landfill.
d. Other disposal/utilization scheme (Specify):
4. Important SOC, JOC or Compliance Schedule dates, if applicable: (Please indicate)
Submission of Plans and Specifications
Begin Construction
Complete Construction

PART III - EVALUATION AND RECOMMENDATIONS
The City of Lexington pumps the sludge from two settling ponds onto four drying beds. If
the sludge is too wet to dispose into the county landfill, arrangements are made to haul the sludge (12
miles) to the Lexington Regional WWTP (NC0055786). After the sludge is dried, it is then reloaded
and rehauled to the county landfill. The proposed sludge drying pad would eliminate this costly
inconvenience of reloading and rehauling of sludge. This office recommends the ATC for the storage
pad at the Lexington Water Plants #1 and #2 according to DWQ policy.
�"�W64
Signature areport preparer
Water Quality Section Su -visor
Date

RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION C
ROL SYSTEMS
Name of Facility: `-Q
Owner or Contact Person:
Mailing Addre s:. V. 1e9
County:
Present Classification:
f
RN
Telephone:"
New Facility Existing Facility
NPDES Per. No. NC00 RD3!7 Nondisc. Per. No.WO Health Dept.Per No.
Rated by: (c Telephone: (334)'►j►-y460 Date:-q,&2Zq-
Reviewed by: Health Dept. Telephone:
AAi egional Office Telephone: 7 7/— S Oct
Central Office Telephone:
ORC: 6fA OCIAn Grade: Telephone:
Check Classification(s): Subsurface Spray Irrigation Land Application
Wastewater Classification: (Circle One)0 II III IV Total Points:
0. •7� ._'fl 1: 1„=►1 ��: 1■' i .L�. .'�_�. •1!► ! J1. .►.'ft•'til=.,•��►•�71►. �► JI. :►.
SUBSURFACE CIASSIF1CATiON
(check all units that apply)
1. _septic tanks
2. pump tanks
3. siphon or pump -dosing systems
4. sand filters
5. grease trapfinterceptor
6. _oiVwater separators
7. gravity subsurface treatment and disposal:
8. pressure subsurface treatment and disposal:
SPRAY IRRIGATION CLASSIFICATION
(check
all units that apply)
1
preliminary treatment (definition no. 32 )
2.
Iagoons
3.
septic tanks
4.
pump tanks
5.
pumps
6_
sand filters
7-grease
trap/interceptor
8.
oil/water separators
9
disinfection
10.
chemical addition for nutrient/algae control
11.
spray irrigation of wastewater
In addition to the above classifications, pretreatment of wastewater in excess of these components shall
be rated using the point rating system and will require an operator with an appropriate dual certification.
LAND APPLICATION/RESIDUALS CLASSIFICATION (Apples only to permit holder)
1. Land application of biosolids, residuals or contaminated sails on a designated site.
WASTEWATER TREATMENT FACILITY CLASSIFICATION
The following systems shall be assigned a Class I classification, unless the flow is of a significant quantity or the technology Is unusually
complex, to require consideration by the Commission on a case -by -case basis: (Check it Appropriate)
1. Oillwater Separator Systems consisting only of physical separation, pumps and disposal;
2. Septic Tank/Sand Filter Systems consisting only of septic tanks, dosing apparatus, pumps,sand filters, disinfection
and direct discharge;
3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, and direct discharge;
4. Closed -bop Recycle Systems;
5. Groundwater Remediation Systems consisting only of oNwater separators, pumps, air -stripping, carbon adsorption, disinfection
and disposal;
6. Aquaculture operations with discharge to surface waters;
7=Water Plant sludge handling and back -wash water treatment;
8. Seafood processing consisting of screening and disposal.
9. Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified it permitted after July 1,
1993 or if upon inspection by the Division, It is found that the system is not being adequately operated or maintained. Such
systems will be notified of the classification or reclassification by the Commission, in writing.

The following scale is used for rating wastewater treatment facilities: (circle appropriate points)
REM POINTS
(1) Industrial Pretreatment Units or Industrial Pretreatment Program (see definition No. 33)...................................................4
(2) DESIGN
FLOW OF PLANT IN gpd (rot applicable to ron•oonntarrinated cooing waters, sludge handing facilities for
water purification plants, totally dosed cycle systems(see definition No. i1). and facilities consisting only of Item
(4)(d) or Items (4)(d) and (11)(d)]
0 - 20.000...............................................................................................................»...............................i
20.001 - 50.000......................................................................................................................................2
60.001 100.000....................................................................................................................................3
100,001 - 250.000..................................................................................................................................A
250,001 - 500,000..................................................................................................................................5
500.001 - 1.000.000............................................................................................................................... A
1.000.001 - 2.000.000...........................................................................................................................10
2.000.001 (and up) rate 1 point additional for each 200.000 gpd capacity up to a maximum of .................30
Design Flow (gpd)
PRELIMINARY(3) PRELIMARY UNrrS/PROCESSES (see definition N0.32)
(a)
Bar Scre................................................................................................................................................1
(b)
or
Mechanical Screens. Static Screens or Comminuting Devices..........................................................................2
(c)
Grit Removal..............................................................................................................................................I
(d)
or
Mechanical or Aerated Grt Removal.............................................................................................................2
(a)
Flaw Measuring Device................................................................................................................................1
(f)
or
Instrumented Flow Measurement................................................................................................................2
(g)
Preaeratlon...............................................................................................................................................2
(h)
IrAuent Flow Equalization..........................................................................................................................2
(1)
Grease or Oil Separators - Gravity.................................................................................................................2
Mechanical................................................................................................................................................3
DissolvedAir Flotation................................................................................................................................a
(1)
Prechlorination.........................................................................................................................................5
(4) PRMARYTREATMENT UNRS431110CESSES
(a)
Septic Tank (see definition No. 43).... »............. »....................................................................................... 2
(b)
Imhoff Tank.............................................................................................................................................5
(c)
Primary Clarlllers.........................................................................................................................................5
(d)
Settling Ponds or Settling Tanks for Inorganic Non•toxlc Materials (sludge handling facilities for water
purification plants. sand, gravel, stone. and other mining operations except recreational activities such as gem
orgold mining)........................................................................................................................................2
(5) SECOrDARY
TREATMENT U nS/PRDCESSES
(a)
Carbonaceous Stage
(1) Aeration -Mph Purity Oxygen System.............................................................................20
DiffusedAir System.......................................................................................................10
Mechanical Air System (fixed. floating or rotor) .......................................................... A
Separate Sludge Reaeration............................................................................................3
(il) Trlddfng Filter
HighRate.......................................................................................................................7
StandardRate ............ ».................................................................................................5
PackedTower ................ »...............................................................................................
QU) Biological Aerated Filler or Aerated Biological Filler»_._.._........»_._.._._».»»».».........._».10
(Iv) Aerated Lagoons..........................................................................................................10
(v) Rotating Biological Contactors ......................................................................................10
(VI) Sand Filters -Intermittent biological..................................................................................2
Recirculatingbiological....................................................................................................3
(vU) Stabilization Lagoons....................................................................................................5
(Val) ClsAler............................ ».............................................................................................
(Ix) Single slaps system for combined carbonaceous removal of BOD and nitrogenous removal by
Ntrft&Wn (sea definition No. 12KPoints for this item have to be In addition to items
(5)(a)(1) through (5)(a)(viil).
utilizing the extended aeration process (see definition No.3a)..........................................2
utilizing other than the extended aeration process. ...... .... ».................. ...... .................... 8
(x) Nutrient additions to enhance BOD removal.....................................................................5
(XI) Biological Culture ('Super Bugs')addition.......................................................................5
(b)
Nitrogenous Stage
(i) Aeration - High Purity Oxygen System ............................................................... 20
DiffusedAir System .................. »................................................................................... 10
Mechanical Air System (fixed. floating or rotor) _........ _..... .,._........ _........ _... _... _........ »....
Separate Sludge Reaeration............................................................................................3
(II} Trickling FUter-Hlgh Rate.................................................................»................................7
StandardRate...............................................................................................................5
PackedTower................................................................................................................5
(IU) Biological Aerated Filter or Aerated Biological Filter ........................................... 10
(Iv) Rotating Biological Contactors ...................... _.............................................................. 10
(v) Sand Filter - Intermittent biological..................................................................................2
Recirculatingbiological....................................................................................................3
(VI) Clariler.............................................................................................:............................5
(6) TERTURYORADVANCEDTREATMENTWTTSvPROCESSES
(a)
Activated Carbon Beds -
withoutcarbon regeneratlom...... ..... ................................... »..................................................
withcarbon regeneration ............. .................................................................... ............ ....... 15
(b)
Powdered or Granular Activated Carbon Feed -
withoutcarbon regeneration ...»...................................................... .»....................................
withcarbon regeneration ...... »..... ....................................... ........ ... »..... ..................... ...... 15
(c)
Air stripping ...... ..... .................................. »».».....»..............................................................................5
(d)
Dankrifleation Proem ss... ................................. ......».........................................».............»......................10
(0)
Electrodlalysis...».................»...................._............._..»......_..................»....»...»...................................5
(f)
Foam Separation........................................»............»........................................»....................................3
(g)
ion Exchange ... ...........»......................... ...».... »... ...... ....... ».... ..................... »........................ ».................. 5
(h)
Land Application of Treated Effluent (see definition No. 22b) (not applicable for sand. gravel. stone
and other skngar mining operations) by high rate HNtradon _..._.......»..._... .»» _..._..._»._..._ .... 4
(I)
Microscreens...... .......... »....... ................ .... ........................................................... ....... ........................ 5
()}
Phosphorous Removal by Biological Processes (See definition No. 26).......... ...... »................... ................. 20
(k)
Polishing Ponds - without aeration ............... ............ »......................... »............ »............. .............. ........ 2
withaeration .... ..... ........ »..«...................... »... .......... .................. ... »......... ........ ..........

Citrus" or mechanical........................................................................................................2
(m)
Reverse Osmosis........................................................................................................................................5
(n)
Sand or -Media Filters - low rate ...................................... ....................................................2
highrate.......... .............................................. ..5
(o)
Treatmet owes for removal of metal or cyanids.........................................................................1 5
(p)
treatment processes for removal of toxic materials other than metal or cyanide ..... .................. _.... ................ 15
(7)
Sit ETREATMENT
(a)
Sludge Digestion Tank - Heated (anaerobic) .................................. _........................................................... 10
Aerobic.............................................................................................................................................5
Unheated(anaerobic)...............................................................................................................................3
(b)
Sludge Stabilization (chemical or thermal)...................................................................................................5
(c)
Sludge Drying Beds - Gravity......................................................................................................................2
VacuumAssisted......................................................................................................................................5
(d)
Sludge Elutriation.....................................................................................................................................5
(a)
Sludge Conditioner (chemical or thermal)....................................................................................................5
(1)
Sludge Thickener (gravity).........................................................................................................................5
(g)
Dissolved Air Flotation Unit (not applicable to a unit rated as(3)(1)).............................................................a
(h)
Sludge Gas Utilization (including gas storage) ....... ........... _......... »............................................................... 2
(I)
Sludge Holding Tank - Aerated .......................................... _.:......................................................................
Non -aerated ................................. ................... ........................ ................................................................2
())
Sludge Incinerator (not Including activated carbon regeneration)................................................................10
(k)
Vacuum Filter, Centrifuge, or Fitter Press or other similar dewatering devices...................................................10
(a)
RESIDUALS UTILIZ.ATIOWDISPOSAL (including incinerated ash)
(a)
Lagoons..................................................................................................................................................2
(b)
Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or landfill operator who holds the land application permit
orlandlil permit........................................................................................................................................2
(c
Dedicated Landfill(burfal) by the pernittea of the wastewater treatment facility ...............................................
9
( )
(a)
Chlorination.............................................................................................................................................5
(b)
Dechlorination..........................................................................................................................................5
(c)
Ozone......................................................................................................................................................5
(d)
Radiation.................................................................................................................................................5
(10)
CHEMICAL ADDITION SYSTEM(S) ( see definition No. 9) (not applicable to chemical addhions rated as hem (3)0),
(5)(a)(A).
(6)(a). (6)(b). (7)(b). (7)(a). (9a)• (9)(b) or (9)(c) 5 points each:
List....................................................................................................................................5
...................................................................................................................................5
................................................................................................................................... 5
..................................................................................................................................... 5
(1 1)
MISCELLANEOUS UNITS/PROCESSES
(a)
Holding Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Materials Including wastes from mining
operations containing nitrogen or phosphorus compounds in amounts significantly greater than Is common
fordomestic wastewater...........................................................................................................................A
(b)
Effluent Flow Equalization (not applicable to storage basins which are inherent in land application systems).....2
(c)
Stage Discharge (not applicable to storage basins Inherent in land application systems) .._... _........ _._... _....... 5
(d)
Pumps......................................................................................._...........................................................3
(0)
Stand -By Power Supply............................................................................................................................3
(1)
Thermal Pollution Control Device ................................................................................................................3
TOTALPOINTS..........................................................................
CLASSIFICATION
OwesI...........................................................................................................5-25 Points
Class11.........................................................................................................26-50 Points
Classl1........................................................................................................51-65 Points
ClassIV .......................................................................................................66-Up Points
Facilities having a rating of one through four points. Inclusive, do not require a certified operator.
Facilities having an activated sludge process will be assigned a minimum classification of Class it.
Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class II.
Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class 111.
MU DEFINITIONS
The following definitions shall apply throughout this Subchapter.
(1) Activated Carbon Beds. A physipVchemical method for reducing soluble organic material from wastewater effluent; The column -type beds used in this
method will have a flow rate varying from two to eight gallons per minute per square foot and may be either upfiow or downflow carbon beds. Carbon may or
may not be regenerated on the wastewater treatrnert plant she;
(2) Aerated lagoons. A basin in which all solids are maintained In suspension and by which biological oxidation or organic matter Is reduced through artificially
accelerated transfer of oxygen on a flow -through basis;
(3) Aeration. A process of bringing about Intimate contact between air or high purity oxygen in a liquid by spraying, agitation or dffuslon;(3a) Extended
Aeration. An activated sludge process utilizing a minimum hydraulic detention time of 18 hours.
(4) Agria►huraliy managed sits. Any she on which a crop Is produced, managed and harvested (Crop Includes grasses, grains, tress, etc.);
(5) Air Stripping. A process by which the ammonium Ion Is first converted to dissolved ammonia (pH adjustment) with the ammonia then released to the
atmosphere by physical means; or other similar processes which remove petroleum products such as benzene, toluene, and "no;
(6) Carbon Regeneration. The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatilize and oxidize the
absorbed Impurities;
(7) Carbonaceous Stage. A stage of wastewater treatment designed to achieve secondary* effluent limits;
(8) Centrifuge. A mechank:al device In which centrifugal force is used to separate solids from Oqulds or to separate Oqulds of different densit-'as;
(9) Chemical Addition Systems- The addition of chemicals) to wastewater at an application point for purposes of Improving solids removal, pH adjustment,
alkalinity control, etc.; the capability to experiment with different chemicals and different application points to achieve a specific result will be considered one
system; the capability to add chemkW(s) to dual units will be rated as ons system; capability to add a chemical at a different application paints for different
purposes will result In the systems being rated as separate systems;
(10) Chemical Sludge Conditioning. The addition of a chemical compound such as came, ferric chloride. or a polymer to wet sludge to cosksce the mass prior to
its application to a dswatering duke;
(11) Closed Cycle Systems. Use of holding ponds or holing tanks for conialnment of wastewater contal g
crushed stone or other similar operatkmre. Such sy tens shall carry a maximum of two pokes regardless of pumping acilities or non-toxic
other appurtenances; owl,
(12) Combined Removal of Carbonaceous BOO and Nitrogenous Removal by Nitrification. A single stage system required to achieve permit effluent limits on BOD
and ammonia nitrogen within the sane bkiogkal reactor,
(13) Dechlorinatlon. The partial or complete reduction of residual chlorine in a liquid by any chemical or physical process;
(14) Denkri ieation Process. The convereion of nitrate -nitrogen to nitrogen gas;

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Lexington Water Treatment Planttail,
7�'%
NPDES Permit No. ^y'I h i' -C
NCO028037 tL= ' "'�, ^ �'I
� Ili;
�Jj \ Discharges into Abbotts Creek, Class WS-III?
Located on SR1844 at Hwy
Davidson County D-18-SW Topo.71
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cc: Permits and Engineering
Technical Support Branch
County Health Dept.
Central Files
WSRO
SOC PRIORITY PROJECT: No X
To: Permits and Engineering unit
Water Quality Section
Attention: Susan Robson
Date: February 25, 1993
NPDES STAFF REPORT AND RECOMMENDATION
County Davidson
Permit No. NC0028037
PART I - GENERAL INFORMATION
1. Facility and Address: City of Lexington
Water Treatment Plants #1 and #2
28 West Center Street
Lexington, N.C. 27292
2. Date of Investigation February 23, 1993
3. Report Prepared by: Michael M. Mickey, Environmental Tech V
4. Persons Contacted and Telephone Number: Mr. James Grey, WTP
Supervisor, ph [phone].
5. Directions to Site: Take Hwy. 29/70 north out of Lexington
to Old Greensboro Road (SR 1844). The WTP is located on the
right side of SR 1844 at its junction with Hwy 29/70.
6. Discharge Points(s), List for all discharge points:
Latitude: 350 5111311 Longitude: 800 11' 50"
U.S.G.S. Quad No. D-18-SW U.S.G.S. Quad: Lexington West
7. Site size and expansion area consistent with application ?
X Yes No If No, explain:
8. Topography (relationship to flood plain included): The
settling ponds are located adjacent to Abbotts Creek, but
above the flood plain.
9. Location of nearest dwelling: No dwellings are located
within a 1000 ft of the discharge point.

10. Receiving stream or affected surface waters: Abbotts Creek
a. Classification WS-III
b. River Basin and Subbasin No.: YAD-07
C. Describe receiving stream features and pertinent
downstream uses: The drinking water reservoir, Lake
Thom-A-Lex is located 1 mile upstream of the outfall.
Part II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitted: Variable, not
limited by permit. Self monitoring data shows an
average flow of 0.332 mgd. It is relevant to note,
however, that the discharge does not occur every day.
b. What is the current permitted capacity of the Waste
Water Treatment facility? No limit.
C. Actual treatment capacity of the current facility
(current design capacity)? The WTP can produce 3.7 MGD
of finished water.
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years. NA
e. Please provide a description of existing or
substantially constructed wastewater treatment
facilities; The existing system consists of two .0350
MGD settling ponds and four sludge drying beds.
f. Please provide a description of proposed wastewater
treatment facilities. NA
g. Possible toxic impacts to surface waters: None known.
h. Pretreatment Program (POTWs only): NA
2. Residuals handling and utilization/disposal scheme:
a. Landfill: Solids removed from the drying beds are
disposed of in the county landfill.
3. Treatment plant classification: Class I
4. SIC Code(s): 4941
Primary 04 Main Treatment Unit Code: 5 0 0 X 1
NPDES Permit Staff Report
Version 10/92
Page 2

PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant
Funds or are any public monies involved. (municipals only)?
NA
2. Special monitoring or limitations (including toxicity)
requests: None
3. Important SOC, JOC or Compliance Schedule dates: (Please
indicate) NA
4. Alternative Analysis Evaluation: Has the facility evaluated
all of the non -discharge options available. Please provide
regional perspective for each option evaluated. NA for
existing WTP.
5. Other Special Items: None
PART IV - EVALUATION AND RECOMMENDATIONS
The discharge from the WTP consists of supernatant drawn off
from either of the two 0.350 mgd settling basins. The basins
receive filter backwash and basin wash water. Solids collected
in the settling basins are periodically pumped onto the drying
beds for disposal in the county landfill. A review of the
monthly self monitoring data shows that the facility was in
compliance with all final limits during 1992.
WSRO recommends reissuance.
Signature of report pr arer
Water Quality Regional Supervisor
Date
NPDES Permit Staff Report
Version 10/92
Page 3

State of North Carolii
Department of Envirt,..,.ient
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Roger Spach, Supt.
City of Lexington
28 West Center Street
Lexington, North Carolina 27292
Dear Mr. Spach:
14 • •
ID E N F=1
RECEIVED
April 1, 1998 N.C- #�"i)t". of ENNR
APR 17 1098
Winston-Salem,
Regional offiea
Subject: NPDES Permit NC 00 037
Application Number AC0028037
ATC Request Acknowledgment
City of Lexington WTP # I & 2
Davidson
The Division of Water Quality's NPDES Unit hereby acknowledges receipt of your request for
Authorization to Construct (ATC) in accordance with NPDES Permit Number NC000028037 on
April 1, 1998. This application has been assigned the number shown above.
Please be aware that the Division's regional office, copied below, must provide recommendations
from the Regional Supervisor prior to final action by the Division.
You should be aware that the ATC review process generally takes 90 days from the date your
complete submittal is received. This 90 day process may be extended if additional information is
required. Should any additional information be required, you will be contacted by the review
engineer.
If you have any questions, please contact Phyllis Cameron at [phone], extension 538.
PLEASE REFER TO THE ABOVE APPLICATION NUMBER WHEN MAKING
ANY INQUIRIES ABOUT THIS APPLICATION.
cc: Winston-Salem Regional Office
NPDES Unit Permit File
P.O. Box 29535, Raleigh, North Carolina 27626-0535
An Equal Opportunity Affirmative Action Employer
Sincerely,
David A. Goodrich
Supervisor, NPDES Unit
Telephone [phone] FAX [phone]
50% recycled/ 10% post -consumer paper

,�°f 'x`•��Z (Itty of )Erxingtlan rREC ��rFD
MAN ._.,6
CAR�� 28 West Center Street, Lexington, N.C. 27292
[phone] BY
March 12, 1998
�y ,ram
Mr. David A. Goodrich
NC DENR-DWQ
P.O. Box 29535
Raleigh, N.C. 27626-0535 [=� 1T �4U�;H BRANCH Eh�/
Re: Permit No. NC0028037
Request for Authorization to Construct APR 17
Lexington Water Plants #1 & #2, Davidson County
Subject: Addition to the Lexington Water Plants' Sludge Treatment Sys&!� Q lice
Dear Mr. Goodrich:
We are requesting to be allowed to construct a temporary sludge storage pad at our Water Plants'
sludge treatment system. I am enclosing three sets of plans and a check for $200 for this request.
Presently, Lexington concentrates its Water Plant sludge by decanting water from sludge
accumulated in two settling ponds. The concentrated sludge from the settling ponds is pumped
to one of four drying beds. It is air dried, removed from the drying beds with a front end loader
and hauled to the Davidson County Landfill for disposal.
At times, the sludge being removed is too wet to be accepted to the landfill. It is then hauled 12
miles one way to our Wastewater Treatment Plant (NC0055786) for storage until it dries
sufficiently to be accepted at the landfill. It is then reloaded and hauled to the landfill.
We are proposing to put a storage pad on the `'Water Plant site to store this wet sludge until it
dries sufficiently for the landfill's needs. This will save a considerable amount of time hauling
and back hauling sludge. The storage pad will drain by gravity to the storage ponds of the Water
Plants' sludge treatment facility. This work is being done in-house instead of being contracted
out.
If I can answer any questions regarding this, please contact me at 336-243-2489.
Sincerely,
Roger Spach

Cover Sheet from
jw -a bi3 ' 1111/ , 0 Staff Member to
1 " Regional Supervisor
DNIIR Review Record
Facility: Perrait/Pipe No.: AeXc v 037 Month/Year ,2013
Parameter
Date Parameter
Monthly Average Violations
Permit Limit DMR Value % Over Lin -lit
Weekly/Daily Violations
DMR Value % Over Limit
Monitoring Frequency Violations
Date Parameter Permit Frequency Values Reported # of Violations
�� c 2 D. 1
Permit Limit/Type
Other Violations LaSI 12 /nOl)-1►S:
No)) jao 0201,E ��OW Ia dUer
-�sr yj 1)Dfe5 read c ev #one o
Completed by: TIA"
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ReL,ional Water Quality
Supervisor Signoff:
Date: I 0 3
Date:

,, r no Ia _ LV_ 0� J Cover Sheet from
r��
�►V d Staff Member to
Regional Supervisor
DMR Review Record
Facility: ('jII Permit/Pipe No.: / 60C 10I—Month/Year
Monthly Average Violations
Parameter Permit Limit DMR Value % Over Limit
ow 0"1 114706 n. /0) `ro
Date
Date
Weekly/Daily Violations
Parameter Permit LimiJVTvpe DMR Value % Over Limit
Monitoring Frequency Violations
Parameter Permit Frequencv Values Reported # of Violations
Other Violations
/r0 i
Completed by: J �(„ `�✓ Date: Ir / J %Z
Regional Water Quality G L/
Su ervisor SiQnoff: Date: (^'�
F ..
N�

NOD -ao1R- LV- 0ti0-�-
Cover Sheet from
Staff Member to
Regional Supervisor
DNIR Review Record
Facility: Permit/Pipe No.: � �US Month/Year Cc/i o2 D l a
I�Yll
Monthly Average Violations
Parameter Permit Limit DMR Value % Over Limit
Weekly/Daily Violations
Date Parameter PermitLuniVTvpe DMR Value % Over Limit
Monitoring Frequency Violations
Date Parameter Permit Freauencv Values Reported # of Violations
Other Violations
40 yr o (a fi g Dort ►g /a s f / Z !L()✓ M S
Completed by: ccq 1-�er Date: /2
Regional Water Quality
Supervisor SiQnoff: Date:
l�

Cover Sheet from
Staff Member to
Regional Supervisor
DMR Review Record
Facility: t r Pem-it/Pipe No.: /U 00u 1-8O33" Month/Year (a.,c - cJbl
Parameter
Date Parameter
Monthly Average Violations
Permit Limit DMR Value % Over Limit
Weekly/Daily Violations
Permit Limit/Tvpe DMR Value % Over Limit
Monitoring Frequency Violations fix'
Date Parameter Permit Frequency Values Reported # of Violations W �.
12- 3 2 X � ---L— %
Other Violations
0 dttrtns /ash 12- MOOS
Completed by: T CCA (- P-�r Date:
Regional Water Quality
Supervisor Signoff. ''� Date:
c'a,,e
3q Z,z
124e,4 ZO<L

Cover Sheet from
Staff Member to
Regional Supervisor
DNIR Review Record
Facility: )M40, W� Permit/Pipe No.: /1 �iDU— Month/Year0 o
Monthly Average Violations
Parameter Permit Limit DMR Value % Over Limit
Weekl, Maily Violations �//��
LfhaC/
Date Parameter Permit Limit/Type DMR Value % r Limit
ZoR - /,07,
Monitoring Frequency Violations
Date Parameter Permit Frequency Values Reported # of Violations
Other Violations
; �M,` � r � cl v� �i�. /3,tm J< i u �' t 1,141-1AI b1n, I) ,� Dot , ��n�1, ,7 ( ono/ 0
Cf'����iYe ` BP�'cx ��i %oo�� 1 ✓ i`S > s tL I'� �idw iA�� a?? l2
Completed by: Ii Ca i __el/ Date: . r /0//
Regional Water Quality
Supervisor Signoff: �h�' hl l Dater d 1
r /� -A��
t��s '

Cover Sheet from
Staff Member to
Regional Supervisor
DMR Review Record
Facility-- Permit/PipeNo.:N6 o3Z Month/Year 2��U
Ij
Monthly Average Violations
Parameter Permit Limit DMR Value % Over Limit
�Lw •�� � q� $ S j `'
Date
Date
Weekly/Daily Violations
Parameter Permit Limit/Type DMR Value % Over Limit
Monitoring Frequency Violations
Parameter Permit Frequency Values Reported # of Violations
Other Violations
�jo
Completed by: 1 �� ►' �i✓ Date: U
Regional Water Quality
D
Supervisor Signoff: Date: ��1�
JK 41 p

Cover Sheet from
Staff Member to
Regional Supervisor
I-r� D>\ZR Review Record
/
Facility: �Xj/ jo r PermitlPipe No.: %�C'f,�o�l Month/Year 2 0 / O
Monthly Average Violations
Parameter Permit Limit DMR Value % Over Limit
Weekly email Violations
Date Parameter Permit Limitfrvpe DMR Value %D� Limit
Monitoring Frequency Violations
Date Parameter Permit Frequuencv Values Reported # of Violations
Other Violations
6PW I-JA141 Id Ae 5( c2o/a NP9-
tio 6J Y-d fLe LIE 1y�wj r%rl� ,oYetloaf Z, M61'6�f
Completed by: G. r Date: // 4
Regional Water Quality
Supervisor Signoff: Date:

Cover Sheet from
Staff Member to
Regional Supervisor
n,, DMR Review Record
Facility: (JL t Permit/Pipe No.: NC gQ 7 Month/Year V /O
Monthly Average Violations
Parameter Permit Limit DMR Value % Over Limit
Weeklyr�Violations
Date Parameter Perrrur_ it Limit/T� DMR Value %� Limit
Monitoring Frequency Violations
Date Parameter Permit Frequency Values Reported # of Violations
Completed by: ^� (G}iaC✓
Regional Water Quality ,
Supervisor Signoff:
V
Date:
Date:
57