HomeMy WebLinkAboutNC0082694_Correspondence_20220328 (3)Zackery Foreman
Water Treatment Superintendent
Town of Dallas
210 N. Holland St
Dallas, NC 28034
(704) 922-1309
zforeman@dallasnc.net
2/1/2022
Ori Tuvia
Environmental Engineer
NCDEQ/Division of Water Resources
(704) 235-2190
ori.tuvia@ncdenr.gov
Ref: Inspection 1/25/2022 Incident Report
Andrew Pitner
Environmental Program Supervisor 11
NCDEQ/Division of Water Resources
(704) 235-2180
andrew.pitner@ncdenr.gov
Corey Basinger
Regional Supervisor
NCDEQ/Division of Water Resources
(704) 235-2194
corey.basinger@ncdenr.gov
Ori Tuvia arrived at the facility on January 25, 2022 for an inspection of the discharge at the water treatment facility. When
we did the walk around, we found that the lagoon was overflowing. The water was entering a storm drain adjacent to the
lagoon. I was unaware of the overflow. Further investigation we checked chlorine in the pond and found the level above
discharge limit. The lagoon chlorine was 65 ug/L. We then looked at where the stormwater drain went. It empties into a storm
pond behind the high service pump building. This also seemed to be overflowing but was unable to tell if it was a normal
condition or confirm it was overflowing. We tested the stormwater pond chlorine levels were 22 ug/L which is below limit.
The two ponds are roughly 600ft apart. We then entered the adjacent property (PIN#3568309886 Owner: Kelly Investment
Company) where we found a ditch that runs behind our property. This ditch ran toward the woods parallel to the river. Which
is >400 ft from the river. I don't think any of the flow made it to the stream.
• Stormwaterline
I, Ditch
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Imagery C2022 Maxar Technologies, Orbis Inc, U.S. Geological Survey, USDA Farm Service Agency
It was requested that we have an immediate action to stop the overflow. I decided to open the recirculation valve to put the
water back into the pre -sedimentation basin. This action stopped the lagoon from continuing to overflow. January 26th, 2022,
we checked the chlorine level again in the lagoon. The chlorine level was .43 ug/L this is below acceptable limit. We started
discharging. This lowered the lagoon level giving freeboard in the pond. On January 27th ,2022 we noticed that the level was
increasing without any output from the water treatment facility. Upon further inspection we found that the back pond was
adding water to the main lagoon. The back pond was originally a chemical containment pond for the bulk chemical tanks. We
are not sure when the connecting pipe was installed between the to ponds was installed. It seems it was put in place as an
overflow component for the lagoon. This has been part of the issue since all rainwater that enter the containment for the
chemical tanks was being sent to that back pond which in turn went to the lagoon elevating the level. The consensus is that
the pipe is set around the overflow level of the lagoon. Will attach full size plans with this report Couldn't find any drawings
showing the pipe that interconnects the ponds. We also need to have both ponds dredged to remove solids that have built
up in both ponds. Have contacted Southern Soil builders about removing the solids. He is set to be onsite February 7th, 2022
@ 11:00 am to discuss our options for getting the solids removed. Solids have been removed from the sand filters and
transported to the landfill. Flow is being managed to keep freeboard in the lagoon. Inspection of the lagoon is happening
daily to maintain level.
Zach Keys is working on options to remove the solids form the lagoons we should have the options by February 8, 2022. We
will be moving quickly to complete the solids removal once we receive the options and choose the best solution for the sludge
disposal.
Regards,
Zackery Foreman
Water Treatment Superintendent
Town of Dallas
January 3V, 2022
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