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DWR Complaints
Complaint Details
Complaint
Complaint Number
132634
DWR Program Area
WPC
Date Received
7/9/2024
How Received
Other Agency
Concerning
Sludge / Bio-solids
Concerning (Other)
Assigned Date
7/9/2024
Record Last Updated
11-JUL-2024 08:16AM
Location based on SITE_ID
Site ID
4919
Site
Clarksville Gas and Water dba Clarksville Wastewater Treatment Plant
Location
15 Quarry Road
City
Clarksville
Description
-
County
Montgomery
EFO Name
Nashville
Site Owner
City of Clarksville
Investigation Results
Status
Open
Date Investigated
7/9/2024
Responsible Party
Date Completed
Referred To
Date Referred
Photos
Description and Writeup
Complainant states that: On Tuesday June 25, 2024, two truck loads of waste were dumped onto a drying pad at Clarksville Waste Water Treatment Plant. The waste appeared to have some sort of oily material, as it was black in color, slick, and repelled water. As it sat in the pad, any runoff from this waste was pumped into the treatment plant. The waste was put into a dumpster, and that dumpster was then put under a trash chute to be covered with garbage. I’m not sure what will happen with this particular dumpster, but they are usually dumped into a landfill. It’s unclear what this material is, or if it is safe, as no testing was performed.
CLW Called Brian Shelton with Clarksville WWTP-Lift Station 1-2 years ago that industrial used had discharged oil/ black substance, did clean up and billed them and enforced against. He received call from sewer crews to go back out there and looks like residuals were still in the pipe and were pumped out and sent to the WWTP. Mr. Shelton was unaware they pumped and brought it to the WWTP until it had happened. Industry is Hancook (waiting for verification from PT coordinator), uses carbon black in industry process, fine graphite powder that can look really dark. Called landfill to determine what they can do, mix rags from pumped loads with headworks sludge usually, landfill said they were okay with them bringing it to them and mixing as usual. Mr. Shelton unsure if it has made it to the landfill yet and they did not see an interruption in treatment at the WWTP. Waiting for additional details from PT coordinator.
More detailed information from Mr. Brian Shelton- "The waste in question came from our Steelstock pumping station located in our industrial park. We have had a couple of incidents in recent years at this location. The first incident that involved a black substance was in 2020. The second incident was in 2023. I have broken the events down in a timeline below.
9-8-2020 Hankook Tire self reported that they found a large amount of oil in their sample jug.
9-9-2020 NOV issued to Hankook for Oil and Grease and TSS. We suspected that the TSS was due to the carbon black used in their process.
9-10-2020 During this inspection Davis Stack, our pretreatment coordinator, found oil in a mop sink. Hankook discovered that an employee had emptied the floor scrubber in the mop sink.
10-9-2020 Clean Harbors pumped out 2,854 gallons of the oil/mixture along with rags from the Steelstock wet well.
10-27-2020 Clean Harbors came back after more oil had collected from the spill and pumped an additional 4,465 gallons of the oil mixture with rags from the Steelstock wet well.
Hankook was billed $25,604.09 for the cleanup efforts.
8-10-23 We discovered oil in the wet well again. and traced it back to Waste Management (not an SIU in our pretreatment program) at 881 Alfred Thun Rd. Upon inspection we discovered a broken pvc cap in a sump pit.
8-11-23 The PVC cap was replaced.
8-26-23 We tried to clean the wet well walls by dumping dish liquid into the wet well.
9-5-23 H&H oil pumped out 4,000 gallons of oil/water mixture with no rags from the wet well. Waste Management was billed $4,100 for the cleanup.
10-2-23 Waste Management installed piping to convert the sump pit into an oil/water separator.
A work order was turned in for our vac truck to pump the station out due to solids buildup and rags. No detail of oil or grease was in the work order. The vac operator vacuumed the station out and dumped it at the WWTP. The operators noticed a darker color in the wet well but didn't think it was oil. The vac truck operator thought it looked like leachate that the landfill had discharged. During the month of May the landfill was having trouble with their process and their discharge was darker than normal. After it was dumped it was observed to have oil residual and a black color. We let it dry on the pad and and mixed it in the headworks screenings since it was similar material.