California Water Treatment Plant Operator Health & Safety Code § 116710 Attorney Fee Petition Mechanics: SWRCB DDW Operator Certification Database as Primary Welch Anchor (THE ONLY § 116710 Water Treatment Plant Operator Page — DISTINCT FROM Wastewater Treatment Plant Operator Water Code § 13625, Registered Environmental Health Specialist H&S Code § 106615, and PE Environmental Engineer § 6701; NSF International NSF/ANSI/CAN 60-2021 Drinking Water Treatment Chemicals Advisory [PURE KETCHUM]; AWWA C651-14 Standard for Disinfecting Water Mains Advisory [PURE KETCHUM]; TWO PRIVATE STANDARDS ON ONE PAGE), CCP § 1021.5 Private Attorney General Mandatory Attorney Fees

Statutory Framework: Health & Safety Code § 116710 and SWRCB DDW T-Certificate — Water Treatment Plant Operator Requirements, Scope of Practice, NSF/ANSI/CAN 60-2021 [PURE KETCHUM], AWWA C651-14 [PURE KETCHUM], and CCP § 1021.5 Mandatory Attorney Fees

California Health & Safety Code § 116710 — enacted as part of the California Safe Drinking Water Act (§§ 116270–116800) — requires that any person who operates a water treatment facility serving a public water system hold a current Water Treatment Plant Operator Certificate issued by the SWRCB Division of Drinking Water (DDW). Certificates are issued at five grade levels — T1 through T5 — based on plant complexity, source water type, treatment technology, and system size: T1 covers entry-level groundwater systems with limited treatment; T2 covers groundwater under direct influence of surface water; T3 is required for surface water systems with conventional treatment including coagulation, flocculation, sedimentation, filtration, and disinfection; T4 covers large surface water plants serving more than 10,000 service connections or using advanced treatment such as ozonation or membrane filtration; T5 is the highest grade, required for large or complex multi-source systems with advanced treatment trains. § 116760 expressly prohibits uncertified operation of a water treatment facility serving a public water system; a person who operates such a facility without the required T-certificate of the appropriate grade commits § 116760 uncertified operation. A § 116760 violation is actionable under CCP § 1021.5 when the litigation vindicates a public interest in safe drinking water protecting California water consumers from uncertified treatment plant operation and the documented public health risks arising therefrom. Primary Welch anchor: SWRCB DDW Operator Certification database (T-certificate module, name and certificate number search at the DDW online portal).

NSF INTERNATIONAL NSF/ANSI/CAN 60-2021 DRINKING WATER TREATMENT CHEMICALS — HEALTH EFFECTS ADVISORY — THE ONLY PAGE IN THE FEE-PETITION-MECHANICS SERIES WITH AN NSF/ANSI/CAN 60-2021 ADVISORY — PURE KETCHUM: NSF International (founded 1944, Ann Arbor MI) is a private nonprofit public health standards organization accredited by the American National Standards Institute (ANSI) and the Standards Council of Canada (SCC). NSF/ANSI/CAN 60-2021 (Drinking Water Treatment Chemicals — Health Effects) is the leading private standard governing chemical additives used in potable water treatment; it is widely adopted as an acceptable use standard by state primacy agencies including SWRCB DDW. Key NSF/ANSI/CAN 60-2021 requirements applicable to water treatment plant operator practice include: (1) Section 5 — systematic evaluation of all chemical additives at maximum use levels, requiring that each drinking water treatment chemical be evaluated for contaminant extraction and potential health effects at the concentration resulting from maximum single-use feed rates; (2) Section 6 — maximum allowable concentration (MAC) ratios establishing that the concentration of any contaminant contributed by a drinking water treatment chemical to finished water shall not exceed one-tenth of the no-observable-adverse-effect level (NOAEL) for that contaminant; this one-tenth NOAEL safety factor is the core health-protection criterion for chemical feed rate authorization; (3) Section 7 — documentation requirements mandating that water treatment operators record the maximum single-use concentration for each treatment chemical in operational logs, and that verification testing be conducted before any non-standard chemical feed rate or new chemical formulation is authorized for use in potable water production. An uncertified operator who miscalibrates a chemical feed pump at a dosage well exceeding the NSF/ANSI/CAN 60 Section 6 MAC ratio — without performing the Section 7 verification testing that a certified operator would conduct — commits documented NSF/ANSI/CAN 60-2021 operational deficiencies. NSF/ANSI/CAN 60-2021 creates no statutory fee-shifting; it is a PURE KETCHUM advisory.

AWWA C651-14 STANDARD FOR DISINFECTING WATER MAINS ADVISORY — THE ONLY PAGE IN THE FEE-PETITION-MECHANICS SERIES WITH AN AWWA C651 ADVISORY — PURE KETCHUM: The American Water Works Association (AWWA, founded 1881, Denver CO) is a private nonprofit professional organization for water supply professionals, utilities, and engineers serving the drinking water community across North America. AWWA C651-14 (Standard for Disinfecting Water Mains) is the primary private consensus standard governing procedures for disinfecting water mains, service connections, and distribution system components following new installation, repair, or modification; it is widely referenced by SWRCB DDW and local health agencies as the accepted disinfection protocol for return-to-service of repaired water system components. Key AWWA C651-14 requirements applicable to water treatment plant operator practice include: (1) Section 5 — continuous chlorine injection requirements specifying that disinfection shall be accomplished by continuously injecting chlorine into the main at a dosage sufficient to maintain a free chlorine residual of not less than 25 mg/L throughout the main being disinfected; this 25 mg/L minimum residual throughout the disinfection period is the core disinfection efficacy criterion; (2) Section 6 — flushing and dechlorination requirements specifying that after the required contact period, all heavily chlorinated water shall be flushed from the main through a temporary blowoff or hydrant, and that any residual chlorine levels above the normal distribution system residual shall be dechlorinated before disposal to prevent environmental discharge violations; (3) Section 7 — bacteriological verification requirements specifying that no disinfected water main shall be returned to potable water service until at least two consecutive bacteriological samples collected at least 24 hours apart from each end of the disinfected zone confirm the absence of total coliform organisms; this two-sample consecutive negative criterion is the critical return-to-service gate that certified operators are trained to apply. An uncertified operator who bypasses the AWWA C651-14 Section 7 bacteriological verification procedure — returning a repaired booster pump and associated piping to potable water service without obtaining two consecutive negative coliform sample results — commits documented AWWA C651-14 return-to-service protocol omissions. AWWA C651-14 creates no statutory fee-shifting; it is a PURE KETCHUM advisory.

Three-Track Harm: Aluminum Sulfate 4× Overdose Turbidity MCL Exceedance Boil Water Order ($285K), Chlorine Booster Pump Replacement No AWWA C651 Return-to-Service Bacteriological Test Coliform Violation ($195K), and 90-Day Operator Log Gap DDW Administrative Civil Liability ($95K)

• UNCERTIFIED OPERATOR AT INLAND EMPIRE SURFACE WATER TREATMENT PLANT SERVING 3,400 SERVICE CONNECTIONS (SWRCB DDW CONFIRMS NO T3 OR HIGHER CERTIFICATE IN OPERATOR CERTIFICATION DATABASE) MISCALIBRATES ALUMINUM SULFATE COAGULANT CHEMICAL FEED PUMP SETTING AT 4× DESIGN DOSAGE WITHOUT NSF/ANSI/CAN 60-2021 SECTION 6 MAXIMUM ALLOWABLE CONCENTRATION VERIFICATION — COAGULANT OVERDOSE DRIVES TREATED WATER pH FROM 7.2 TO 5.9 BELOW OPTIMAL COAGULATION RANGE 6.5–8.5 — FILTER EFFLUENT TURBIDITY RISES TO 6.2 NTU EXCEEDING 0.3 NTU TURBIDITY MCL (17 CCR § 64654) — TIER 1 PUBLIC NOTIFICATION REQUIRED — 72-HOUR BOIL WATER ADVISORY ISSUED TO 3,400 SERVICE CONNECTIONS — SWRCB DDW ADMINISTRATIVE CIVIL LIABILITY ORDER PURSUANT TO H&S CODE § 116750 — $285,000 PENALTY AND MANDATORY CORRECTIVE ACTION PLAN. A Riverside County surface water treatment plant operating under a SWRCB DDW Permit serving 3,400 residential and commercial service connections employed a person as lead plant operator who held no T3 or higher DDW certificate (SWRCB DDW Operator Certification database confirmed zero T-certificate records for the operator’s name and any operator identification number appearing on plant logs). Following a routine chemical delivery, the uncertified operator recalibrated the aluminum sulfate coagulant feed pump without applying the NSF/ANSI/CAN 60-2021 Section 6 maximum allowable concentration verification procedure that certified operators are trained to perform; the pump was set at a dosage four times the design coagulant rate. The aluminum sulfate overdose drove the rapid-mix basin pH from the optimal coagulation range of 6.5–8.5 down to 5.9, causing charge reversal in the destabilization chemistry and dramatically reducing floc formation efficiency; filter effluent turbidity climbed from the normal 0.05–0.08 NTU operating range to a peak of 6.2 NTU, exceeding the 0.3 NTU turbidity MCL established by 17 CCR § 64654 and triggering the Tier 1 public notification obligation under 17 CCR § 64461 for an acute MCL violation. The plant superintendent, upon discovering the turbidity exceedance at the 4-hour compliance monitoring interval, immediately shut down distribution and issued a 72-hour boil water advisory to all 3,400 service connections via automated reverse-911 notification. SWRCB DDW conducted a compliance inspection, confirmed the uncertified operator status, documented the NSF/ANSI/CAN 60-2021 Section 6 calibration protocol omission, and issued an Administrative Civil Liability (ACL) Order pursuant to H&S Code § 116750 assessing $285,000 in penalties and requiring a mandatory corrective action plan including certified operator employment verification, pump calibration protocol retraining, and a third-party operations audit.
• UNCERTIFIED OPERATOR AT SAN BERNARDINO COUNTY SMALL COMMUNITY WATER SYSTEM PERFORMS EMERGENCY CHLORINE BOOSTER PUMP MOTOR REPLACEMENT WITHOUT AWWA C651-14 SECTION 7 BACTERIOLOGICAL RETURN-TO-SERVICE TESTING — C651 SECTION 7 REQUIRES TWO CONSECUTIVE BACTERIOLOGICALLY NEGATIVE TOTAL COLIFORM SAMPLES FROM THE DISTRIBUTION ZONE DOWNSTREAM OF ANY CHLORINE INJECTION POINT REPAIR BEFORE RETURN TO POTABLE SERVICE — OPERATOR RETURNS SYSTEM TO SERVICE AFTER PUMP REPLACEMENT WITHOUT PERFORMING BACTERIOLOGICAL TESTING — NEXT-DAY ROUTINE COLIFORM MONITORING DETECTS TOTAL COLIFORM PRESENCE IN THREE DOWNSTREAM SAMPLE POINTS — SWRCB DDW ISSUES MCL VIOLATION NOTICE AND REQUIRES EMERGENCY PUBLIC NOTIFICATION — DDW ISSUES NOV AND REQUIRES SUPPLEMENTAL SECONDARY DISINFECTION EMERGENCY PERMIT — EMERGENCY BYPASS LINE INSTALLATION AND CONTRACTOR MOBILIZATION — $195,000. A San Bernardino County small community water system operator serving a high-desert community of approximately 890 service connections employed a person as the sole on-site operator who held no DDW T-certificate of any grade (SWRCB DDW database confirmed no T-certificate records). During a weekend emergency, the booster pump motor on the primary chlorine injection pump station failed; the uncertified operator ordered and installed a replacement motor, re-primed the pump, and returned the distribution system to service without following the AWWA C651-14 Section 7 bacteriological return-to-service verification protocol. AWWA C651-14 Section 7 requires that after any repair to a chlorine injection system or associated piping in contact with potable water, at minimum two consecutive bacteriological samples collected from the distribution zone downstream of the repaired injection point at least 24 hours apart must confirm the complete absence of total coliform organisms before water is served to consumers; certified operators at this class of system are trained specifically on this two-sample verification gate. The uncertified operator, lacking this training, connected the replacement motor, ran the pump for approximately 20 minutes to verify operation, and placed the system back in potable water service without collecting any bacteriological samples. On the following business day, routine compliance monitoring samples collected at three downstream distribution points all returned positive total coliform results under the Standard Methods membrane filtration method; SWRCB DDW was notified within the required 24-hour period, issued a Maximum Contaminant Level violation notice, and required immediate Tier 1 emergency public notification. DDW subsequently issued a Notice of Violation and required an emergency supplemental secondary disinfection permit, emergency contractor mobilization to install a bypass disinfection line, system-wide flushing, and 48-hour consecutive negative bacteriological verification before return to full potable service, resulting in $195,000 in emergency remediation, contractor, and public notification costs.
• UNCERTIFIED OPERATOR AT MONTEREY COUNTY GROUNDWATER BLENDING FACILITY FAILS TO MAINTAIN DAILY TURBIDITY MONITORING RECORDS AND CHEMICAL FEED PUMP CALIBRATION LOGS AS REQUIRED BY TITLE 17 CCR § 64655 — CERTIFICATION REQUIREMENT UNDER H&S CODE § 116710 REQUIRES CERTIFIED OPERATOR TO MAINTAIN COMPLETE OPERATIONAL RECORDS INCLUDING DAILY SOURCE WATER TURBIDITY, FILTERED WATER TURBIDITY, CHLORINE RESIDUALS, AND CHEMICAL FEED RATE LOGS — SWRCB DDW ANNUAL SANITARY SURVEY DISCOVERS 90-CONSECUTIVE-DAY GAP IN OPERATOR DAILY LOG BOOK — DDW ISSUES ADMINISTRATIVE CIVIL LIABILITY ORDER PURSUANT TO H&S CODE § 116750 — $95,000 PENALTY PLUS MANDATORY THIRD-PARTY OPERATIONS AUDIT AND CERTIFIED OPERATOR EMPLOYMENT VERIFICATION. A Monterey County groundwater blending facility — combining two groundwater sources requiring pH adjustment, fluoridation, and chlorination before entry into the distribution system under a T2 DDW operating permit — employed a person as facility operator who held no DDW T-certificate (SWRCB DDW database confirmed no T-certificate of any grade). Title 17 CCR § 64655 requires operators of water treatment facilities to maintain daily operational logs recording source water turbidity measurements, treated water turbidity, free chlorine residual at entry point, and chemical feed pump settings and dosing rates for all treatment chemicals; these operational records are the core documentation that DDW sanitary surveyors review to verify compliance with permit conditions and treatment effectiveness requirements. The training provided to certified operators under the DDW T-certificate program specifically emphasizes the § 64655 recordkeeping requirements as a foundational operational competency. During the SWRCB DDW annual sanitary survey, the DDW inspector requested the facility operational log book and discovered a 90-consecutive-day gap in daily log entries during a period coinciding with the facility’s peak summer production season; no source turbidity, finished water turbidity, chlorine residual, or chemical feed rate entries existed for that 90-day period. DDW issued an Administrative Civil Liability Order pursuant to H&S Code § 116750 assessing $95,000 in civil penalties for the recordkeeping violations attributable to uncertified operation, and required a mandatory third-party operations audit and certified operator employment verification as conditions of continued operating permit authorization.

Distinct From Wastewater Treatment Plant Operator (Water Code § 13625), Registered Environmental Health Specialist (H&S Code § 106615), and PE Environmental Engineer (Bus. & Prof. Code § 6701 PE-EnvE)

• DISTINCT FROM Wastewater Treatment Plant Operator (Water Code § 13625 SWRCB Grade I–V certificate) — A Wastewater Treatment Plant Operator holds a SWRCB Grade I, II, III, IV, or V Wastewater Treatment Plant Operator Certificate issued under Water Code § 13625 and the Wastewater Treatment Plant Operator Certification Law (§§ 13625–13672); a Water Treatment Plant Operator holds a SWRCB T1, T2, T3, T4, or T5 Drinking Water Treatment Plant Operator Certificate issued by SWRCB Division of Drinking Water (DDW) under H&S Code § 116710 and the Safe Drinking Water Act; the two certification programs are administered by separate SWRCB divisions, authorize entirely different treatment processes (potable drinking water treatment vs. municipal sewage treatment), use separate certification databases, and are governed by different statutory frameworks: the § 116710 fee petition requires confirming absence of a T-certificate in the DDW Operator Certification database (T-certificate module); a § 13625 fee petition requires confirming absence of a Grade certificate in the SWRCB OC database; neither certificate authorizes the practice covered by the other.
• DISTINCT FROM Registered Environmental Health Specialist (H&S Code § 106615 CDPH REHS/RS credential) — A Registered Environmental Health Specialist (REHS/RS) holds a CDPH credential authorizing food safety inspections, vector control advisory services, water system sanitary surveys from an inspection perspective, and general environmental health assessments under the Environmental Health Specialist Registration Act; a REHS does not hold a SWRCB DDW Water Treatment Plant Operator T-certificate and is not authorized to perform the daily operational functions of a certified drinking water treatment plant operator including chemical feed rate control, filter operation and monitoring, disinfection byproduct compliance monitoring, and operational recordkeeping under 17 CCR § 64655: the two credentials are issued by different agencies (CDPH vs. SWRCB DDW), are governed by different statutes (H&S Code § 106615 vs. H&S Code § 116710), and authorize entirely different professional activities; a REHS who performs water treatment plant operational functions without a T-certificate commits § 116760 uncertified operation regardless of REHS licensure.
• DISTINCT FROM PE Environmental Engineer (Bus. & Prof. Code § 6701 PE-EnvE BPELSG designation) — A PE Environmental Engineer (PE-EnvE) is licensed under the Professional Engineers Act to design water treatment systems, prepare engineering reports for DDW permit applications, stamp treatment facility plans and specifications, and conduct engineering analyses of treatment plant performance; a PE-EnvE is not required to hold a SWRCB DDW operator T-certificate and is not authorized to perform the daily operational functions of a certified water treatment plant operator including filter backwash operations, chemical feed pump calibration, daily compliance monitoring, and § 64655 operational recordkeeping; the § 116710 fee petition targets uncertified operation of a water treatment facility, not unlicensed engineering design of water treatment infrastructure: PE-EnvE and DDW T-certificate are issued by different agencies (BPELSG vs. SWRCB DDW), govern different professional activities (engineering design vs. plant operation), and are required by different statutes (§ 6701 vs. § 116710); the two credentials serve entirely different and non-overlapping professional practice functions.

Billing Gaps 1–3 Summary (13.25 hrs/yr = $3,975–$6,625/yr)

Frequently Asked Questions