WQ0006245_NOD-2018-PC-0145_20180412

K"
Water Resources
Environmental Quality
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Interim Director
April 12, 2018
Mr. Andy Smith, Fourth Creek WWTP Supervisor
City of Statesville
P.O. Box 1111
Statesville, North Carolina 28687
Dear Mr. Smith:
Subject: NOTICE OF DEFICIENCY
NOD -2018 -PC -0145
Incomplete 2017 Annual Report
City of Statesville
Permit No. WQ0006245-Distribution of Residuals (503),
Iredell County
The Mooresville Regional Office (MRO) has received and reviewed the 2017 Annual Report
(AR) for the above permit. The MRO acknowledges the reports have been presented in a bound
format for ease of review.
The review of the Annual Report revealed continued reporting deficiencies. Condition III.3(4),
requires that the wastewater effluent be sampled for the following parameters:
Plant Available Nitrogen (by calculation) Sodium Absorption Ration (by calculation)
As also noted in the comments about the 2015 and 2016 AR's, the contract laboratory is still not
consistently supplying the complete values for Plant Available Nitrogen (PAN). Therefore, the
PAN values are not able to be verified as the Mineralization rate is not presented in the report. In
addition, please explain the PAN value submitted on page 4 of 10 on the PRISM laboratory
report that indicates a PAN of 19 for the sample submitted on 1/30/2017; this data point seems to
be an outlier. Please verify, or submit corrected data for this data point.
Also, the sodium absorption ratio (SAR) is presented inconsistently throughout the AR. Prism
Laboratories (Prism) did not provide SAR data in milli -equivalents (mEq) on work orders
7020241, 7020509, 705139, 7060053, 7010438 and 7030251. However, other work orders
State of North Carolina I Environmental Quality I Water Resources I Water Quality Regional Operations
Mooresville Regional Office 1610 East Center Avenue, Suite 3011 Mooresville, North Carolina 28115
704-663-1699

provided the SAR in mEq. The SAR values need to be reported consistently in the Prism work
orders present in the AR.
To correct these concerns, please submit updated values for PAN and SAR. To assist in this
reporting there is an excel spread sheet that is utilized by the Division of Water Resources that
we recommend for performing PAN, CEC, SAR and ESP calculations. I have separately
emailed a copy for your reference.
It was also noted that the Chain of Custody's (C.O.C.'s) are not complete. The method of
preservation for the metals is not indicated on any of the C.O.C.'s. Ice, is considered to be a
method of preservation and should be noted as such on future C.O.C.'s.
Should you have questions, Ed Watson and I I may be reached by phone at [phone] or by
email (edward.watsonkncdenr.. og_v) should you have questions.
Sincerely,
LDocu igned by:
A•�ww N P,z:.�.ew rtner, P.G.
Assistant Regional Supervisor
Mooresville Regional Office
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
Attachment: Compliance Inspection Report
CC: Mr. L.F. Hudson, Director of Water Resources, Town of Statesville (email)
Sonia Gregory, LAU Compliance, CO -Raleigh (email)