Concrete Supply Company Sent Caustic, Sediment-Choked Water Into a Public Stream for Years.

Legal Receipts

“the site map did not accurately depict the location of industrial activity areas, nor did the SWPPP address the removal of the retention pond, addition of the diversion berm on the north side of the site, or the operation and maintenance requirements for the recently installed CO2 treatment system.”

• Proves the company’s pollution prevention plan hadn’t been touched even though the physical site had changed.
• Shows EPA inspectors caught the gap, not the company itself.
• Establishes the plan was already legally deficient before any water sample was ever tested.

“Respondent provided EPA with a copy of a SWPPP dated April 15, 2012 as the most current version of the Facility’s SWPPP.”

• Confirms that as late as June 2020, the company’s official pollution control plan was eight years out of date.
• Means the plan predated the 2017 permit it was supposed to comply with.
• Shows the company itself represented this outdated document as current.

“Neither admits nor denies the factual allegations set forth in Section IV (Findings of Facts) of this CAFO. Respondent maintains it would deny and defend against the allegations described herein.”

• Confirms the company closed a federal pollution case without admitting it broke the law.
• Shows the company reserved the right to contest the same facts elsewhere.
• Illustrates how a settlement lets a company pay and move on without any legal finding of guilt.

“The review of the effluent monitoring data showed the following TSS effluent exceedances for the following monitoring events, in violation of Table 8 of Part IV.D of the 2017 NC Permit.”

• Confirms EPA treated the sediment pollution levels as documented permit violations, not estimates.
• Ties the exceedances directly to a legally binding limit written into the company’s own permit.
• Shows the violations surfaced through the company’s own required self-monitoring data.

Societal Impact Mapping

Environmental Degradation

EPA’s own monitoring data shows this facility repeatedly sent polluted water into a public stream at levels far outside what its permit allowed.

• On October 26, 2018, sediment pollution (TSS) measured 330 mg/L at the facility’s outfall, more than 11 times the 30 mg/L limit set in the permit.
• On that same date, pH measured 11.59 standard units, more than two and a half points above the 9.0 ceiling allowed under the permit.
• Sediment pollution exceeded the legal limit on at least four separate testing dates between May 2017 and March 2019.
• pH exceeded the legal limit on at least four separate testing dates over the same period, with readings as caustic as 11.59 S.U.
• All of this discharged into Kings Branch, a stream the state of North Carolina classifies as a protected Class C water.

The Settlement Isn’t Justice

A $43,000 fine for years of documented permit violations, with no admission of wrongdoing, is not much of a deterrent.

• The total penalty is $43,000, covering violations across at least five separate testing dates and multiple categories of noncompliance documented from 2017 through 2019.
• The company explicitly “neither admits nor denies” the violations and reserved the right to “deny and defend” against the same facts in another setting.
• The settlement resolves only “Respondent’s liability for federal civil penalties for the violations and facts specifically alleged” in the document itself, nothing broader.
• The case ran from a May 30, 2019 inspection to a December 1, 2025 signature, roughly six years and six months, before any penalty was finalized (calculated from source dates).

This Is the System Working as Intended

This case shows how the enforcement system lets a documented, repeated permit violation move at the pace of paperwork instead of the pace of pollution.

• EPA documented the SWPPP deficiencies and stormwater exceedances through a May 30, 2019 inspection, but the case wasn’t resolved until the company’s president signed the settlement on December 1, 2025, a gap of roughly six and a half years (calculated from source dates).
• The company was allowed to settle for $43,000 with no court finding that it broke the law, and no admission of the facts EPA documented.
• The settlement’s own terms limit its legal effect to the violations “specifically alleged” in the document, making the resolution narrow by design.
• The company went through an inspection, a formal Notice of Violation, and a show-cause meeting, and still exited the process without any adjudicated finding of liability.

What a Legitimate Fix Looks Like

This case exposes how stormwater self-monitoring and pollution-plan paperwork requirements can sit unenforced for years without a real penalty.

Regulatory Track

• NCDEQ and EPA should require verified proof that a SWPPP has been updated whenever a permittee reports facility changes, like removing infrastructure or installing new treatment equipment, closing the gap this case exposed between what’s on paper and what’s on the ground.
• Regulators should set a maximum time limit between a documented stormwater exceedance and a finalized enforcement penalty, rather than allowing a case to stretch past six years (general industry standard, not a source-specific finding).
• Effluent violations at this scale, sediment pollution 11 times the legal limit, should trigger mandatory follow-up inspections rather than paperwork review alone.

Legislative Track

• Clean Water Act civil penalty provisions should scale fines to the number and severity of documented exceedances rather than resolving in a single flat settlement figure.
• Lawmakers should close the gap that lets companies settle federal pollution cases without any factual admission, which limits the public record and affected communities’ ability to use the findings elsewhere.
• NPDES general permit renewal cycles, like the shift from the 2017 to the 2022 NC Permit in this case, should require a documented compliance history review before renewal is granted.

Corporate Governance Track

• The company should be required to designate a specific, named compliance officer accountable for keeping the Stormwater Pollution Prevention Plan current, given the plan on file was eight years out of date at the time of EPA’s review.
• Facility management should be required to certify, on a recurring schedule, that the SWPPP site map matches actual site conditions, directly responding to the documented gap between the 2012 plan and the facility’s real footprint.
• Ownership-level sign-off should be required on stormwater compliance status before any future permit renewal application is submitted.

What Now?

Accountability for Concrete Supply Company, LLC runs through the regulators who already hold the enforcement record and the community along Kings Branch.

• EPA Region 4’s Enforcement and Compliance Assurance Division, which brought this case and holds the authority to reopen it if new violations surface.
• NCDEQ’s Division of Energy, Mineral, and Land Resources, which issues and renews the general stormwater permit covering this facility through 2027.
• Mecklenburg County residents can request public copies of NPDES permit and inspection records for facilities discharging near Kings Branch directly from NCDEQ.
• Local water-quality advocacy groups can use this CAFO’s own effluent data as a baseline to track whether the facility’s discharges stay under permit limits going forward.
• Community members can submit public comments during NCDEQ’s next stormwater permit renewal cycle for facilities discharging into Kings Branch.