NC0024881_Compliance Evaluation Inspection_20191029

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
NORTH CAROLINA
Environmental Quality
October 29, 2019
CERTIFIED MAIL 7002 0860 0000 7978 3478
RETURN RECEIPT REQUESTED
D Kelly Almond
City of Reidsville
230 W Morehead St
Reidsville, NC 27320
Subject: Notice of Violation — Compliance Evaluation Inspection
NOV Tracking No. NOV-2019-PC-0714
NPDES Permit NCO024881
City of Reidsville WWTP, Rockingham County
Dear Mr. Almond:
On September 27, 2019, Paul DiMatteo and Mike Turner of the Division of Water Resources (Division),
Winston-Salem Regional Office met with Ben Bani, Operator in Responsible Charge (ORC), to
conduct a Compliance Evaluation Inspection of the above referenced wastewater treatment plant.
This inspection consisted of (1) a review of the permit and accompanying documentation to determine
compliance with permit conditions, and (2) an on -site inspection of several collection system
components. The attached inspection form notes the areas that were evaluated for the inspection, with
any observed violations as follows:
Summary of Non -Compliance
As noted during the previous inspection and reported in our letter dated 2/27/2018, the plant's
generators do not have the capacity to power the effluent pumps. This results in a bypass to Little
Troublesome Creek whenever power is interrupted. Little Troublesome Creek is not a permitted
receiving stream for this facility. Part II. Section C.7 Power Failures states that "the Permittee is
responsible for maintaining adequate safeguards (as required by 15A NCAC 02H .0124) to prevent the
discharge of untreated or inadequately treated wastes during electrical power failures either by means
of alternate power sources, standby generators or retention of inadequately treated effluent."
From January 1, 2018 through October 1, 2019, operators reported 9 such bypasses to this office, with
an estimated total of 3.810 million gallons being released to Little Troublesome Creek (Class WS-V,
NSW). Such bypasses are both not authorized by the NPDES permit, and the discharged water is
inadequately treated for the receiving stream, in violation of this Condition.
Please see the attached inspection form for other observations and concerns from the inspection.
D North Carolina Department of Environmental Quality I Division of Water Resources
EQ�p
Winston-Salem Regional Office 1 450 West Hanes Mill Road, Suite 300 I Winston-Salem, North Carolina 27105
NORTH CAROLINA �
o•o•°"•mme""°"^•"vin"•i� /� 336.776.9800

Requested Response
Within 30 days of receipt of this report, please submit a written plan to address the violation noted
above. If you have any questions concerning this report, please contact Paul DiMatteo at (336) 776-
9691 or me at [phone].
Sincerely,
Docu Siiggned by:
%_
145B49E225C94EA...
Lon T. Snider, Regional Supervisor
Water Quality Regional Operations Section
Winston-Salem Regional Office
Division of Water Resources, NCDEQ
Enclosures — Inspection Report, Regional Inspectors' Checklist for Field Parameters
CC: WSRO Laserfiche Files
DWR Laboratory Certification Branch (via e-mail)

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 IN I 2 IF I 3 I NCO024881 111 12 I 19/09/27 I17 18 I S J 19 L G] 201 I
211111 I I I I I I II I I I 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 f6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved -------------------
671
70 I I 71 I I 72 I r I 73 I I 174 751 I I I I I I I80
u I� I I i
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 oermit Number)
10:45AM 19/09/27
13/06/01
Reidsville WWTP
407 Broad St
Exit Time/Date
Permit Expiration Date
Reidsville NC 27320
02:OOPM 19/09/27
16/04/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
D Kelly Almond,230 W Morehead St Reidsville NC 27320//336-349-1030/3363423649
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Flow Measurement Operations & Maintenance Records/Reports
Self -Monitoring Program 0 Facility Site Review Effluent/Receiving Waters Laboratory
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
Paul DiMatteo DWR/WSRO WQ/336-776-9691/
Signature of Management Q A Review Docusigned by: Agency/Office/Phone and Fax Numbers Date
Luti '? Snider 10/29/2019
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

NPDES yr/mo/day Inspection Type (Cont.)
NCO024881 I11 121 19/09/27 117 18 JCJ
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Operator said they're in the process of upgrading next year for 3 stage BNR to lower TP and TN. Still in
planning/engineering stages.
Flow meter calibrations:
2/11/2019 Custom Controls Unlimited
2/16/2018 Carolina Technical Services
8/14/2019 Carolina Technical Services
Other findings of note:
1. Influent & Effluent Composite Sampling. During the inspection, aliquot volume was measured at the
effluent composite sampler. The sampler was programmed to take 190 ml, but barely 100 ml was
collected. Operators went through the calibration process during the inspection, and the sampler was
left properly taking the programmed volume. Please be sure to periodically check the aliquot volume
with a graduated cylinder and calibrate the samplers as necessary.
2. Secondary Clarifiers. In Clarifier #1, the inspector noted that there were areas where the effluent
appeared to be going under, rather than over, the weirs. This should be corrected so that the clarifiers
operate as designed.
3. Effluent flow measurement. The inspector noted that the effluent ultrasonic sensor appeared to be
closer to the Parshall flume's throat section than expected. Conditions observed on site appeared to
indicate that the recorded flow was within acceptable tolerances at the time of inspection; however,
having the sensor at this location may produce a systematic under -reporting of flow. SCADA readings
should be compared with the in -situ staff gauge and discharge table at a variety of flow conditions to
ensure that recorded flows are within 10% of actual flow for the entire expected flow range.
Page#

Permit: NCO024881 Owner - Facility: Reidsville WWTP
Inspection Date: 09/27/2019 Inspection Type: Compliance Evaluation
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment:
Permit
Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
0
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application?
Is the facility as described in the permit?
0
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# Are there any special conditions for the permit?
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0
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Is access to the plant site restricted to the general public?
0
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Is the inspector granted access to all areas for inspection?
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Comment: 7.5 mgd permitted flow. Expired 4/2016, in review.
Record Keeping
Yes No NA NE
Are records kept and maintained as required by the permit?
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Is all required information readily available, complete and current?
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Are all records maintained for 3 years (lab. reg. required 5 years)?
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Are analytical results consistent with data reported on DMRs?
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Is the chain -of -custody complete?
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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?
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Has the facility submitted its annual compliance report to users and DWQ?
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(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator
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on each shift?
Is the ORC visitation log available and current?
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Is the ORC certified at grade equal to or higher than the facility classification?
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Is the backup operator certified at one grade less or greater than the facility classification?
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Is a copy of the current NPDES permit available on site?
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Page# 3

Permit: NCO024881 Owner - Facility: Reidsville WWTP
Inspection Date: 09/27/2019 Inspection Type: Compliance Evaluation
Record Keeping Yes No NA NE
Facility has copy of previous year's Annual Report on file for review? 0 ❑ ❑ ❑
Comment:
Flow Measurement - Influent
Yes No NA NE
# Is flow meter used for reporting?
❑
0
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Is flow meter calibrated annually?
0
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Is the flow meter operational?
0
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(If units are separated) Does the chart recorder match the flow meter?
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0
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Comment:
Influent Sampling
Yes No NA NE
# Is composite sampling flow proportional?
0
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Is sample collected above side streams?
0
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Is proper volume collected?
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Is the tubing clean?
0
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# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
0
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Celsius)?
Is sampling performed according to the permit?
0
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Comment: Hach Siama SD900
Set for flow proportional sampling
150 ml every 105 counts (however, count volume unknown)
Operators said they normally pull --10L/day
Temperature checked and recorded on bench sheet daily, read 3C during
inspection.
Aliquot volume not verified during inspection.
Pump Station - Influent
Yes No NA NE
Is the pump wet well free of bypass lines or structures?
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Is the wet well free of excessive grease?
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Are all pumps present?
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Are all pumps operable?
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Are float controls operable?
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Is SCADA telemetry available and operational?
0
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Is audible and visual alarm available and operational?
❑
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Page# 4

Permit: NCO024881
Inspection Date: 09/27/2019
Owner - Facility: Reidsville WWTP
Inspection Type: Compliance Evaluation
Pump Station - Influent Yes No NA NE
Comment: "influent" pumps are after grit removal and pump water up the hill to the aeration basins.
Then flows by gravity until it reaches the effluent pumps.
During the inspection 1/4 pumps was completely down and 1 was having issues. Operator
said they were working on the pump with issues and they would get a portable pump while
the other one was down.
We did not observe the actual wet well.
Bar Screens
Yes No NA NE
Type of bar screen
a.Manual
b.Mechanical
Are the bars adequately screening debris?
0
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Is the screen free of excessive debris?
0
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Is disposal of screening in compliance?
0
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Is the unit in good condition?
0
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Comment: Both mechanical and manual bar screens are in use.
Grit Removal
Yes No NA NE
Type of grit removal
a.Manual
❑
b.Mechanical
Is the grit free of excessive organic matter?
0
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Is the grit free of excessive odor?
0
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# Is disposal of grit in compliance?
0
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Comment:
Aeration Basins
Yes No NA NE
Mode of operation
Ext. Air
Type of aeration system
Diffused
Is the basin free of dead spots?
0 ❑
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Are surface aerators and mixers operational?
❑ ❑
0
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Are the diffusers operational?
0 ❑
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Is the foam the proper color for the treatment process?
0 ❑
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Does the foam cover less than 25% of the basin's surface?
0 ❑
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Is the DO level acceptable?
0 ❑
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Page# 5

Permit: NCO024881
Inspection Date: 09/27/2019
Aeration Basins
Is the DO level acceptable?(1.0 to 3.0 mg/1)
Owner - Facility: Reidsville WWTP
Inspection Type: Compliance Evaluation
Comment: Aeration basin DO as read by the oermanently installed Drobes
Yes No NA NE
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0.8 mg/I 1 st 3rd
2.3 mg/I 2nd 3rd
3.8 mg/I last 3rd
One of two aeration basins is in use. Per ORC, they're in the planning stapes of a BNR
upgrade in both aeration basins, so they will be identical.
Secondary Clarifier
Is the clarifier free of black and odorous wastewater?
Is the site free of excessive buildup of solids in center well of circular clarifier?
Are weirs level?
Is the site free of weir blockage?
Is the site free of evidence of short-circuiting?
Is scum removal adequate?
Is the site free of excessive floating sludge?
Is the drive unit operational?
Is the return rate acceptable (low turbulence)?
Is the overflow clear of excessive solids/pin floc?
Is the sludge blanket level acceptable? (Approximately'/ of the sidewall depth)
Yes No NA NE
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Comment: Sludge blanket -2.5 feet (13 feet total depth). Measured in clarifier #1.
There appeared to be an area where water was being discharged from under the clarifier
weir rather than over it. This should be corrected.
Filtration (High Rate Tertiary)
Yes No NA NE
Type of operation:
Down flow
Is the filter media present?
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Is the filter surface free of clogging?
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Is the filter free of growth?
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Is the air scour operational?
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Is the scouring acceptable?
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Is the clear well free of excessive solids and filter media?
0
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Comment:
Disinfection -Gas Yes No NA NE
Are cylinders secured adequately? 0 ❑ ❑ ❑
Page# 6

Permit: NCO024881 Owner - Facility: Reidsville WWTP
Inspection Date: 09/27/2019 Inspection Type: Compliance Evaluation
Disinfection -Gas
Yes No NA NE
Are cylinders protected from direct sunlight?
0
❑
❑
❑
Is there adequate reserve supply of disinfectant?
0
❑
❑
❑
Is the level of chlorine residual acceptable?
0
❑
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❑
Is the contact chamber free of growth, or sludge buildup?
0
❑
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Is there chlorine residual prior to de -chlorination?
❑
❑
❑
Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No. 7782-50-5)?
❑
0
❑
❑
If yes, then is there a Risk Management Plan on site?
❑
❑
0
❑
If yes, then what is the EPA twelve digit ID Number? (1000- - )
If yes, then when was the RMP last updated?
Comment: Have 9 150 lb tanks. Operators said they get 5 tanks every 2 weeks. Chlorine is added both
before and after the sand filter.
De -chlorination
Type of system ?
Is the feed ratio proportional to chlorine amount (1 to 1)?
Is storage appropriate for cylinders?
# Is de -chlorination substance stored away from chlorine containers?
Are the tablets the proper size and type?
Comment: Stored in separate sheds across the plant from each other.
Are tablet de -chlorinators operational?
Number of tubes in use?
Comment: Sulfur dioxide
Standby Power
Is automatically activated standby power available?
Is the generator tested by interrupting primary power source?
Is the generator tested under load?
Was generator tested & operational during the inspection?
Do the generator(s) have adequate capacity to operate the entire wastewater site?
Is there an emergency agreement with a fuel vendor for extended run on back-up power?
Is the generator fuel level monitored?
Yes No NA NE
Gas
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Yes No NA NE
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Page# 7

Permit: NCO024881
Inspection Date: 09/27/2019
Standby Power
Comment: Yearlv maintenance.
Owner - Facility: Reidsville WWTP
Inspection Type: Compliance Evaluation
Yes No NA NE
Operators said it isn't necessarily tested regularly under load, but it sounds like it comes on
fairly frequently due to power interruptions, including the morning of the inspection. The
generators run the entire plant except for the effluent pumps, leading to a bypass of treated
wastewater to Little Troublesome Creek during power outages. The operators have been in
the process of having a dedicated generator installed, but it has taken some time to get
funding approved.
Pumps-RAS-WAS
Are pumps in place?
Are pumps operational?
Are there adequate spare parts and supplies on site?
Comment:
Laboratory
Are field parameters performed by certified personnel or laboratory?
Are all other parameters(excluding field parameters) performed by a certified lab?
# Is the facility using a contract lab?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees?
Yes No NA NE
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Yes No NA NE
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Comment: Analyze TSS and field parameters at lab. Other samples are analyzed by Meritech.
A Regional Inspector's Checklist for Field Parameters was completed during the inspection.
The form is attached.
Flow Measurement - Effluent
# 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?
Yes No NA NE
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Comment: Flow readings are recorded on SCADA.
2' Parshall Flume with ultrasonic sensor. The sensor appeared to be slightly too close to the
Flume's throat section. On 10/18/2019 1 was at the plant again for an unrelated reason and
checked the flow meters again. At approximately 10:15 am, the staff gauge in the proper
location in the flume read approximately 0.78 feet. SCADA at that time reported
approximately 3.248 mqd; table value is 3.518 mqd. This is an error of 7.7%, which is
acceptable. However, multiple flow rates should be evaluated to ensure that 10% accuracy
is maintained throughout the range of expected flow.
Page# 8

Permit: NCO024881
Inspection Date: 09/27/2019
Owner - Facility: Reidsville WWTP
Inspection Type: Compliance Evaluation
Effluent Sampling
Is composite sampling flow proportional?
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)?
Is the facility sampling performed as required by the permit (frequency, sampling type
representative)?
Yes No NA NE
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Comment: Effluent sannDler is a HACH AS950. set to take 190 ml every 24.000 aal. Amount Dulled in a
graduated cylinder was slightly under 100 ml. We went through the calibration process
during the inspection so the pulled volume was as expected. Operators should check the
calibration of their sampler periodically using a graduated cylinder. Refrigerator temperature
approximately 3C.
Pump Station - Effluent
Yes No NA NE
Is the pump wet well free of bypass lines or structures?
❑
0
❑
❑
Are all pumps present?
0
❑
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❑
Are all pumps operable?
0
❑
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Are float controls operable?
0
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Is SCADA telemetry available and operational?
0
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Is audible and visual alarm available and operational?
0
❑
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Comment: As mentioned Dreviouslv the outfall to Little Troublesome Creek is still available and used
when the effluent pumps are offline due to power failures.
Effluent Pipe
Yes No NA NE
Is right of way to the outfall properly maintained?
0
❑
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Are the receiving water free of foam other than trace amounts and other debris?
0
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If effluent (diffuser pipes are required) are they operating properly?
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0
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Comment: Outfall is located on the Haw River near the bridge at NC 150. There appeared to be some
color in the discharaed water. but it also aDDeared clearer than the stream water.
Page# 9

Regional Inspectors' Checklist for Field Parameters DS
[This checklist is to be completed during regional plant inspections for Field Laboratories, denoted by certification numbers in the 5000s.] `?MA
Facility Name: Reidsville WWTP
Regional Plant Inspector: Paul DiMatteo
Permit #: NC0024881
Regional Inspector Contact #: 336-776-9691
Field Lab Certification #: 179
Region: Winston Salem
Lab Contact: Larry
Date: 9/27/2019
I. Check the parameter(s) performed at this site for reporting purposes.
® Total Residual Chlorine (TRC) ® Temperature (TEMP) ® Specific Conductance (SC)
® pH ® Dissolved Oxygen (DO) ❑ Settleable Residue (SETT)
II. General Laboratory (note any exceptions in section XI)
Are instruments, meters, probes, photometric cells, etc. maintained in good condition?
®
Yes
❑
No
Are standards, reagents and consumables used within manufacturer expiration dates?
[TRC gel standard is exempt.]
® Yes ❑ No
Are the following items documented ( where applicable):
Item
TRC
pH
TEMP
DO
SC
SETT
Date of sample collection*
N/A
Time of sample collection*
N/A
Sample collector's initials or signature
N/A
Date of sample analysis*
N/A
Time of sample analysis*
N/A
N/A
Analyst initials or signature
N/A
Sample site i.e., facility name, location, ID, etc.
N/A
Instrument ID
N/A
Parameter
N/A
Data qualifiers, when required
N/A
*Date and time of sample collection and analysis may be the same for in situ or on -site measurements.
III. Total Residual Chlorine — reference method: SM 2400 CI G-2011
Total Residual Chlorine meter make and model: Thermofisher Scientific S pectro photometer
Is a check standard analyzed each day of use? (Circle one: gel or liquid standard)
® Yes
❑ No
Does the check standard recover within ±10% of the known value?
® Yes
❑ No
What is the assigned/observed value of the daily check standard?
50ug/I
Is a 5-standard calibration verification performed? Note date of last verification:
® Yes
❑ No
Alternatively, does the lab construct a linear regression, using 5 standards, to calculate
results? Note date of last calibration curve constructed:
® Yes
❑ No
True values: ® pg/L ❑ mg/L 20 30 50 100 300
Obtained values: ® lag/L ❑ mg/L 24 28 52 96 301
What program are samples analyzed on?
N/E
Are results reported in proper units? Check one: ❑ lag/L ❑ mg/L
® Yes
❑ No
Are results reported between the facility's permit limit and the compliance limit of 50 lag/L?
® Yes
❑ No
Are results less than the low standard reported as "<x", where x=low standard conc.?
® Yes
❑ No
Is DPD/buffer added within 15 minutes of collection?
® Yes
❑ No
Is a post -analysis check standard analyzed if samples are analyzed at multiple sites?
® Yes
❑ No
IV. pH — reference method: SM 2500 H+ B-2011
pH meter manufacturer and model: Thermo Orion Star A211
Is the pH meter calibrated with at least 2 buffers per mfg's instructions each day of use?
Note buffers used:
®Yes
❑ No
Is the pH meter calibration checked with an additional buffer prior to sample analysis?
Note check buffer used:
® Yes
❑ No
Does the check buffer read within ±0.1 S.U. of the known value?
® Yes
❑ No
Are the following items documented:
Meter calibration?
® Yes
❑
No
Check buffer readin s)?
® Yes
❑
No
Are samples analyzed within 15 minutes of collection?
® Yes
❑
No
Are sample results reported to 0.1 pH units on the eDMR?
® Yes
❑
No
Is a post -analysis check buffer analyzed if samples are analyzed at multiple sites? N/A
❑ Yes
0
No

V. Temperature — reference method:
What instrument(s) is used to measure temperature? Check all that apply: ❑ pH meter
❑ DO meter ❑ Conductivity meter ❑ Digital thermometer ❑ Glass thermometer
Is the instrument/thermometer calibration checked at least annually against a NIST
traceable thermometer?
® Yes
❑ No
Is NIST traceability documentation maintained on site?
® Yes
❑ No
Are samples measured within 15 minutes?
® Yes
❑ No
Are sample results reported in degrees C?
® Yes
❑ No
VI. Dissolved Oxygen — reference method: SM 4500-OG 2011
DO meter make and model: YSI Pro Plus
Is the air calibration of the DO meter performed each day of use?
® Yes
❑ No
Is meter calibration documented?
® Yes
❑ No
Are samples analyzed within 15 minutes of collection?
® Yes
❑ No
Are results reported in m /L?
® Yes
❑ No
If samples are analyzed at multiple sites, is the meter recalibrated at each site or a post-
analysis calibration verification performed? N/A
❑ Yes
❑ No
Does the post -analysis verification theoretical value agree within 0.5 mg/L of the meter
calibration reading? N/A
❑ Yes
❑ No
VII. Conductivity — reference method:
Conductivity meter make and model: SensION EC 71
Is the meter calibrated daily according to the manufacturer's instructions? Note standard
used this is generally a one -point calibration): 1400
® Yes
❑ No
Is a daily check standard analyzed? Note value: 718, 147
® Yes
❑ No
Is meter calibration documented?
® Yes
❑ No
Are samples analyzed within 28 days of collection?
® Yes
❑ No
Is a post -analysis check standard analyzed if multiple samples are analyzed?
N/A
Are results reported in pmhos/cm some meters display equivalent pS/cm units)?
® Yes
❑ No
Vill. Settleable Residue — reference method:
N/A
Does the laboratory have an Imhoff Cone in good condition?
❑
Yes
❑ No
Is the sample settled for 1 hour?
❑
Yes
❑ No
Is the sample aitated after 45 minutes?
❑
Yes
❑ No
Are the following items documented:
Volume of sample analyzed? Note volume analyzed must use 1 L :
❑
Yes
❑
No
Date and time of sample analysis (settling start time)?
❑
Yes
❑
No
Time of agitation after 45 minutes of settling?
❑
Yes
❑
No
Sample analysis completion (settling end time)?
❑
Yes
❑
No
Are samples analyzed within 48 hours of collection?
❑
Yes
❑
No
Are results reported in ml/L?
❑
Yes
❑
No
IX. Was a paper trail (comparing contract lab and on -site data to DMRs)
performed? If so, list months reviewed: 8/2018, 1/2019
® Yes
❑ No
X. Is follow-up by the Laboratory Certification program recommended?
❑ Yes
® No
XI. Additional comments:
Please submit a copy of this completed form to the Laboratory Certification program at:
DWR Lab Certification, Water Sciences Section, 1623 Mail Service Center, Raleigh NC, 27699-1623
Electronic copies may be emailed to dana.satterwhite(a)-ncdenr.gov.
Revision 4/2018