1.1 State Water Board & Regional Boards Structure

Statutory Foundation: The Porter-Cologne Act (1969)

California's modern water quality governance originated with the Porter-Cologne Water Quality Control Act of 1969 (codified in California Water Code Division 7). Enacted three years before the federal Clean Water Act (CWA) of 1972, Porter-Cologne served as the structural and conceptual model for federal water pollution legislation. While the federal Clean Water Act focuses primarily on navigable surface waters ("waters of the United States" or WOTUS), Porter-Cologne establishes comprehensive state jurisdiction over all waters of the state.

[!IMPORTANT] Definition of "Waters of the State": Under California Water Code §13050(e), "waters of the state" means any surface water or groundwater, including saline waters, within the boundaries of the state. This critical distinction gives California regulatory jurisdiction over groundwater basins, isolated wetlands, agricultural return flows, and dry washes that fall outside federal CWA jurisdiction.

Under Porter-Cologne, the discharge of waste into waters of the state is considered a privilege, not a right. Anyone discharging waste, or proposing to discharge waste, that could affect the quality of waters of the state must file a Report of Waste Discharge (ROWD) and obtain an authorization permit before initiating discharge.

---

State Water Resources Control Board (SWRCB) Governance & Structure

The State Water Resources Control Board (SWRCB), frequently called the State Water Board, was created by the California Legislature in 1967 by combining two distinct state functions: water allocation (water rights) and water pollution control. This integrated structure provides comprehensive stewardship over the entire hydrologic cycle.

                    ┌─────────────────────────────────────────┐
                    │  State Water Resources Control Board    │
                    │     (5 Full-Time Board Members)         │
                    └────────────────────┬────────────────────┘
                                         │
         ┌───────────────────────────────┼───────────────────────────────┐
         │                               │                               │
┌────────┴─────────┐           ┌─────────┴────────┐            ┌─────────┴────────┐
│   Division of    │           │   Division of    │            │   Division of    │
│  Drinking Water  │           │    Financial     │            │  Water Quality   │
│      (DDW)       │           │ Assistance (DFA) │            │      (DWQ)       │
└────────┬─────────┘           └─────────┬────────┘            └──────────────────┘
         │                               │
┌────────┴─────────┐  ┌────────────────┴─────────────────┐  ┌──────────────────┐
│ Title 22 drinking│  │   Office of Operator Certification│  │   9 Regional     │
│ water regs, PWS  │  │  DWOCP (Title 22 CCR): T1-T5,D1-D5│  │  Water Quality   │
│ permits, Title 22│  │  WWOCP (Title 23 CCR): Grades I-V  │  │  Control Boards  │
│ recycled water   │  │  BOTH programs live here, in DFA   │  │   (Basin Plans)  │
└──────────────────┘  └───────────────────────────────────┘  └──────────────────┘

The 5-Member Board

The State Water Board consists of five full-time voting members appointed by the Governor and confirmed by the California State Senate to staggered four-year terms. To ensure balanced technical expertise and public accountability, the California Water Code mandates specific qualification categories for the five seats:

1. Professional Engineer experienced in water supply and water quality matters.
2. Professional Engineer experienced in sanitary engineering and water quality.
3. Attorney qualified in the fields of water rights and water quality.
4. Water Quality Expert specializing in water supply, quality, or aquatic biology.
5. Public Member representing the general public interest.

One member is designated by the Governor to serve as Board Chair. The State Board formulates statewide policy, hears appeals of Regional Board decisions, manages financial assistance funds, allocates surface water rights, and establishes statewide regulatory standards for drinking water and water recycling.

Key SWRCB Operating Divisions

---

The Nine Regional Water Quality Control Boards (RWQCBs)

Because California spans diverse climatic zones, topographies, and hydrologic watersheds, Porter-Cologne divided the state into nine distinct hydrologic regions. Each region is governed by a semi-autonomous Regional Water Quality Control Board (RWQCB) consisting of seven part-time members appointed by the Governor.

┌──────────────────────────────────────────────────────────────────────────┐
│                     California's 9 Hydrologic Regions                    │
├────────────────────────────────────┬─────────────────────────────────────┤
│ Region 1: North Coast (Santa Rosa) │ Region 6: Lahontan (South L. Tahoe) │
│ Region 2: San Francisco Bay (OAK)  │ Region 7: Colorado River (Palm D.)  │
│ Region 3: Central Coast (SLO)      │ Region 8: Santa Ana (Riverside)     │
│ Region 4: Los Angeles (LA)         │ Region 9: San Diego (San Diego)     │
│ Region 5: Central Valley (Sac/Fre) │                                     │
└────────────────────────────────────┴─────────────────────────────────────┘

The 9 Hydrologic Regions

1. Region 1 — North Coast Regional Board (Santa Rosa): Encompasses rugged coastal watersheds from the Oregon border south to Marin County (Klamath, Eel, Russian River basins). Focuses on forestry sedimentation, temperature TMDLs, and salmonid habitat protection.
2. Region 2 — San Francisco Bay Regional Board (Oakland): Covers the San Francisco Bay estuary, urban runoff, industrial legacy contaminants (PCBs, mercury), and large municipal wastewater treatment plants discharging to shallow bay waters.
3. Region 3 — Central Coast Regional Board (San Luis Obispo): Spans Santa Cruz to northern Ventura County (Salinas, Pajaro, Santa Maria valleys). Heavily focused on agricultural discharge waivers, nitrate groundwater contamination, and marine sanctuaries.
4. Region 4 — Los Angeles Regional Board (Los Angeles): Covers coastal watersheds of Los Angeles and Ventura Counties. Focuses on dense urban MS4 stormwater, high-density wastewater reclamation plants discharging to the Los Angeles and San Gabriel Rivers, and ocean outfalls.
5. Region 5 — Central Valley Regional Board (Sacramento, Fresno, Redding): By far California's largest region, encompassing 40% of the state's surface area. Encompasses the Sacramento River, San Joaquin River, and Tulare Lake basins. Key focuses include agricultural salinity, CV-SALTS (Central Valley Salinity Alternatives for Long-Term Sustainability), dairy waste, and the Sacramento-San Joaquin Delta.
6. Region 6 — Lahontan Regional Board (South Lake Tahoe, Victorville): Covers eastern Sierra watersheds, the Great Basin, Mojave Desert, and Lake Tahoe. Priority areas include Lake Tahoe clarity standards, groundwater hexavalent chromium plumes (Hinkley), and high-desert wastewater percolation.
7. Region 7 — Colorado River Basin Regional Board (Palm Desert): Encompasses the Imperial Valley, Coachella Valley, and Salton Sea basin. Focuses on agricultural tile-drain runoff, selenium, New River cross-border pollution, and hypersaline Salton Sea management.
8. Region 8 — Santa Ana Regional Board (Riverside): Encompasses the rapidly urbanizing Santa Ana River watershed (Orange, Riverside, and southwestern San Bernardino counties). Renowned for pioneering salt-nutrient management plans, extensive recycled water recharge, and strict total inorganic nitrogen (TIN) limits.
9. Region 9 — San Diego Regional Board (San Diego): Covers southwest California coastal streams draining into the Pacific Ocean from Laguna Beach to the Mexico border. Priorities include beach bacterial standards, Tijuana River cross-border sewage spills, and bay sediment remediation.

Basin Plans (Water Quality Control Plans)

The primary regulatory tool of each Regional Board is its Basin Plan (Water Quality Control Plan). The Basin Plan functions as legal regulation establishing three core components:

1. Designation of Beneficial Uses: Categorizes the protected uses of each waterbody within the basin. Common beneficial uses include:
   • MUN (Municipal and Domestic Supply): Uses of water for community, military, or individual water supply systems including drinking water.
   • AGR (Agricultural Supply): Crop irrigation, livestock watering, and agricultural processing.
   • REC-1 (Water Contact Recreation): Swimming, surfing, whitewater activities where ingestion is possible.
   • REC-2 (Non-Contact Water Recreation): Boating, fishing, hiking along riparian corridors.
   • WARM / COLD (Warm / Cold Freshwater Habitat): Protection of warm-water or cold-water aquatic ecosystems and fish spawning.
   • WILD (Wildlife Habitat): Terrestrial and wetland wildlife preservation.
2. Water Quality Objectives (WQOs): Numerical limits (e.g., dissolved oxygen ≥ 7.0 mg/L, total coliform < 2.2 MPN/100 mL, nitrate as N ≤ 10 mg/L) or narrative standards ("waters shall not contain oils, greases, waxes, or other materials in concentrations that result in a visible film or coating") necessary to protect designated beneficial uses.
3. Implementation Program: Action plans, discharge prohibitions, total maximum daily loads (TMDLs), compliance schedules, and surveillance programs to achieve and maintain the objectives.

---

Permitting Framework: NPDES Permits vs. Waste Discharge Requirements (WDRs)

To control point-source pollution, the Regional Boards issue two primary categories of discharge permits:

                                Discharge Proposed
                                        │
                                        ▼
                   Does the discharge enter Waters of the U.S.?
                                   (Surface Water)
                                  /             \
                             YES /               \ NO (Groundwater/Land)
                                ▼                 ▼
                      ┌──────────────────┐ ┌──────────────────┐
                      │   NPDES Permit   │ │   State WDR /    │
                      │ (Joint CWA §402  │ │  Recycled Water  │
                      │ & Porter-Cologne)│ │   Requirements   │
                      │   5-Year Cycle   │ │ (Porter-Cologne) │
                      └──────────────────┘ └──────────────────┘

1. National Pollutant Discharge Elimination System (NPDES) Permits

Under §402 of the federal Clean Water Act and California Water Code §13370, California is delegated authority by the US EPA to issue federal NPDES permits. Any facility that discharges pollutants from a point source into waters of the United States (surface waters) must operate under an NPDES permit.

• Permit Term: Issued for a fixed term not exceeding 5 years. Dischargers must submit a renewal application (ROWD) at least 180 days prior to permit expiration.
• Permit Contents: Technology-based effluent limitations (TBELs), water quality-based effluent limitations (WQBELs), standard monitoring and reporting programs (MRP), sludge/biosolids provisions, and storm water management controls.

2. Waste Discharge Requirements (WDRs)

WDRs are state-only permits issued under California Water Code §13263 for discharges of waste that could affect groundwater or discharges to land (e.g., wastewater percolation ponds, septic tank-subsurface disposal fields, agricultural irrigation with reclaimed water, municipal sludge land application).

• Permit Term: WDRs generally do not expire every 5 years but are subject to periodic administrative review and updates by the Regional Board based on facility threat-to-water-quality and complexity ratings.
• Master Recycling Permits: Authorized under Water Code §13523.1, combining WDRs and water recycling requirements into a single comprehensive permit for recycled water producers and distributors.

---

Enforcement Framework & Mandatory Penalties

Regional Boards enforce compliance through progressive administrative and legal mechanisms. Certified operators and utility managers must understand the hierarchy of regulatory enforcement:

[!WARNING] Criminal Penalties for Falsification: Under California Water Code §13387 and federal Clean Water Act §309(c), any person who knowingly makes any false statement, representation, or certification in any record, report, plan, or monitoring data submitted to the state is guilty of a crime punishable by state/federal imprisonment and fines up to $50,000 per day.