Matthew Andrew Duffy compiled a public list of over 70 alleged violations directed against the Oklahoma City (OKC) Water Department—focusing on the Lake Hefner and Draper water treatment facilities—which he detailed across public platforms including his "Illegal OKC Water" petition on Change.org and LinkedIn professional updates. [1, 2]
The reported federal, state, and regulatory safety violations include:

Water Quality and Treatment Monitoring
Combined Filter Effluent (CFE) Monitoring Violations: Alleged improper monitoring of the CFE in direct violation of Surface Water Treatment Rule (SWTR) guidelines. [1]
Offline Equipment: Reported instances of turbidimeters being kept offline, disrupting required water clarity checks. [1]
Record Maintenance Violations: Alleged failure by management to meet federal standard record-keeping requirements under 40 CFR 141.33. []
Inaccurate Flow Calculations: Reported failure to accurately calculate peak hourly flow contact time (CT) under 40 CFR 141.74(b)(3)(iii). []
Chloramine Level Discrepancies: Alleged operational deviations concerning the EPA National Primary Drinking Water Regulations (NPDWR) Maximum Residual Disinfectant Level Goal (MRDLG) of 4.0 ppm for chloramines. []
Falsified Operational Data: Claims concerning the willful falsification of pH data and overall water quality compliance logs. [, 2]

Environmental and Chemical Management
Unpermitted Waste Discharges: Alleged that the Draper lagoon operated with unauthorized wastewater discharges. [1]
Illegal Sludge Dumping: Claims that chemical treatment waste (lime) was routinely dumped directly into local waterways, impacting Bluff Creek in violation of the Section 303(d) Impaired Waters regulations. [1]
Chemical Handling and Calibration: Alleged systematic failures regarding proper chemical handling, lime over-softening, and ozone check standards. [1]

Workplace Safety and Labor Rights
OSHA Environmental Hazard Violations: Reported open, uncovered floor drains, unmanaged hoses, and standing pipes across facility buildings and pipe galleys under OSHA 1910.22(a)(1).
Broken Safety Equipment: Claims that mandatory facility eye-wash stations in high-chemical zones (such as the lime room) were left broken despite filed repair orders.
Unmanaged Asbestos Hazards: Alleged unaddressed structural hazards related to exposed asbestos within treatment plant infrastructure.
Suppression of Legal Advice: Alleged that management actively obscured or blocked municipal employees' rights to seek external legal counsel regarding workplace conditions.
Safety Retaliation: Claims that management retaliated against workers who tried to exercise their rights to a safe working environment. [1, 3, 4]