WQ0020409_Inspection Letter_20190523

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
Tim Woody
Resource Recovery Superintendent
City of Raleigh
PO BOX 590
Raleigh, NC 27602
Mr. Woody,
NORTH CAROLINA
Environmental Quality
May 23, 2019
Subject: Compliance Evaluation Inspection
Little Creek WWTP
Reclaimed Water Bulk Distribution System and
Reclaimed Water Distribution Lines
Permit Number WQ0020409
Wake County
On May 23, 2019 Rick Trone of the Raleigh Regional Office conducted a compliance evaluation
inspection of the reclaimed water bulk distribution system located at the Little Creek W WTP. Reclaimed
water is generated by the Treatment Plant (Permit NC0079316). The purpose of this inspection was to
ensure compliance with the subject permit. During the inspection, the cooperation of Ms. Marla Dalton,
ORC, was helpful and appreciated.
This compliance evaluation inspection consisted of the following:
• Review of the permit;
• Review of the owner/facility information;
• Review of ORC logbooks, calibration documentation, Non -discharge wastewater monitoring
reports (NDMR), employee education program, distribution records and;
• On -site inspection of treatment and storage components
The current permit was issued July 19, 2017 and expires on June 30, 2022.
At the facility reclaimed water is generated and blended with potable water. Zebulon is at the end of the
potable water system and this process helps maintain fresh potable water in this area of the system. The
Reuse flowmeter was last verified/calibrated in April 2019. Turbidity is monitored prior to the fill station
North Carolina Department of Environmental Quality I Division of Water Resources
Raleigh Regional Offlce 1 3800 Barrett Drive I Raleigh. North Carolina 27609
ITT V 919.791A200

at the plant and the turbidimeter was last calibrated August 2018 and indicated 0.44 NTU at the time of
inspection. The Chlorine Analyzer was also calibrated at this time.
The bulk fill station located at the plant sees little use. The portable flowmeter at this location was last
calibrated/verified in April 2019. A customer used the bulk fill station on May 22, 2019 but the previous
use was many months prior. Despite the low usage, the system and all components appeared to be well
maintained.
Reclaimed water is also sent through the distribution system to multiple users in the area. These users
include G1axoSmithKline, Mudcats Stadium, US Foods, Sunrock, and Town of Zebulon. The plant also
uses the reclaimed water for various needs. The elevated reclaimed water storage tank located offsite near
the baseball stadium appeared to be well maintained. Access was restricted by a fence and signage was in
place.
NDMR reports were reviewed and indicate compliance. Effluent sampling is aligned with the facilities
NPDES permit and all monitoring is conducted as required by the onsite lab and the certified lab at the
Neuse River Resource Recovery Facility. Residual chlorine and fecal coliform monitoring are conducted
at the WWTP Entry, Mudcats stadium, and at a location on Industrial Drive. These sampling locations
can be adjusted as needed. No exceedances were noted for sampling parameters.
Educational training provided for plant staff was last conducted in May 2019 and is conducted annually.
No spills in the system have been recorded. The facility maintains a reclaimed water log book and a bulk
reclaimed water log.
Overall, the Reclaimed Water Distribution System appears to be well maintained and compliant with
permit requirements.
If you have any questions about this inspection or this letter, please contact Rick Trone at
rick.trone(a,ncdenr.gov or 919-791-4257.
Sincerely,
Rick Bolich, L.G.
Assistant Regional Supervisor
Water Quality Regional Operations
Raleigh Regional Office
Attachments: EPA Water Compliance Inspection Report
cc:
Central Files
RRO Files