SWRCB · SB 1188 · Capacity Development

TMF Capacity Assessments & SB 1188 Compliance Consulting for Small California Water Systems

Technical, managerial, and financial capacity assessments — SWRCB-ready documentation, compliance improvement plans, and DDW communication support for small and medium public water systems in California and Nevada.

What Is TMF Capacity?

Technical, Managerial, and Financial (TMF) capacity refers to a water system's ability to operate and maintain compliance with drinking water standards over the long term. The State Water Resources Control Board (SWRCB) uses TMF assessments to evaluate whether a water system has the infrastructure, qualified personnel, and financial resources to sustain safe, reliable water service to its customers.

If your water system has received a SWRCB compliance order, is undergoing a change of ownership, is applying for a new permit, or has been flagged for TMF deficiencies — you need a consultant who understands both the regulatory framework and the day-to-day operational reality of running a small water system.

Aqua Solutions Consulting provides SWRCB-ready TMF capacity assessments, capacity improvement plans, and SB 1188 compliance documentation for small and medium public water systems in California and Nevada.

Why This Matters Now

Proactive vs. Reactive

A proactively prepared TMF assessment — developed before a compliance action — gives your board and management the clearest possible picture of where you stand, and the documentation needed to demonstrate good-faith compliance efforts to DDW.

Waiting until DDW initiates action limits your options and compresses your timeline. Systems that engage a consultant early consistently achieve better outcomes.

  • Identify deficiencies before DDW does
  • Demonstrate proactive good-faith compliance
  • Avoid compliance orders through early corrective action
  • Protect your system from involuntary consolidation review

When Does SWRCB Require a TMF Assessment?

TMF assessments are triggered by several regulatory circumstances. If any of the following apply to your system, you may need to complete or update a TMF evaluation.

New System Permit Applications

All new community water systems must demonstrate adequate TMF capacity as part of the permitting process before beginning operations.

Change of Ownership or Control

When a water system changes ownership — including mutual water company board transitions or property transfers — SWRCB may require a fresh TMF evaluation.

SB 1188 Capacity Development

Senate Bill 1188 requires that certain water systems receiving state or federal funding, or seeking SWRCB approval for system changes, demonstrate adequate TMF capacity.

Compliance Orders & Enforcement

Systems that have received a Compliance Schedule Order, Notice of Violation, or other enforcement action from DDW may be required to complete a TMF assessment as part of their corrective action plan.

Significant Deficiency Findings

If a DDW sanitary survey identifies significant deficiencies in your system's infrastructure, management, or finances, a TMF assessment may be required as part of the corrective action.

Consolidation Proceedings

Water systems considering consolidation with another system, or being evaluated for consolidation by the state, will typically undergo TMF review as part of the process.

The Three Pillars of TMF Capacity

Every TMF assessment evaluates your system across three interconnected dimensions. Deficiencies in any one area can trigger regulatory action — and improvement in all three is required for long-term compliance.

T

Technical Capacity

Physical infrastructure and operational capability — the condition of your facilities and the qualifications of the operators running them.

  • Source water adequacy and reliability
  • Treatment system condition and compliance history
  • Distribution system integrity and pressure maintenance
  • Storage capacity relative to system demand
  • Operator certification vs. system classification requirements
  • Cross-connection control program status
  • Capital asset condition and remaining useful life
M

Managerial Capacity

Organizational structure, policies, and decision-making processes to operate in compliance over time.

  • Ownership structure and legal authority to operate
  • Board governance and management accountability
  • Operator staffing levels and succession planning
  • Emergency response planning and implementation
  • Regulatory recordkeeping and reporting systems
  • Customer complaint and service response protocols
F

Financial Capacity

Whether your system generates sufficient revenue to cover operations, fund capital improvements, and maintain financial reserves.

  • Rate structure adequacy relative to operating costs
  • Reserve fund balances and capital improvement planning
  • Debt service obligations and financial risk exposure
  • Billing and accounts receivable management
  • Long-term financial sustainability of current rate structure

Complete TMF Assessment Deliverables

Our TMF assessment process produces SWRCB-ready documentation — not just a general report, but a structured evaluation that meets SWRCB's capacity development framework and supports your system's compliance pathway.

01

TMF Assessment Report

A structured evaluation of your system's technical, managerial, and financial capacity — organized to align with SWRCB's capacity development framework and DDW review standards.

02

Capacity Gap Analysis

A clear inventory of identified deficiencies by TMF category, with regulatory basis, severity rating, and recommended corrective action for each gap.

03

Capacity Improvement Plan

A prioritized, time-bound action plan addressing each identified deficiency — formatted to meet SWRCB compliance schedule requirements and defensible under DDW review.

04

SWRCB Submission Package

All documentation formatted and organized for direct submission to your DDW District Office or SWRCB program manager — ready to file on delivery.

05

Operator Qualification Review

Assessment of current operator certifications versus system classification requirements, with recommendations for any certification gaps identified.

06

Financial Sustainability Summary

A plain-language review of rate structure adequacy and reserve fund status — suitable for presentation to your board of directors at your next meeting.

Schedule a TMF Assessment Consultation

SB 1188 and Your Water System

Senate Bill 1188 (Water System Consolidation) established requirements for water systems to demonstrate TMF capacity in connection with specific state actions — including state funding assistance, permit modifications, and consolidation proceedings.

What SB 1188 Requires

Under SB 1188, water systems must demonstrate adequate TMF capacity in several key circumstances:

  • Water systems applying for state financial assistance must demonstrate adequate TMF capacity before receiving funds.
  • Systems identified as having significant deficiencies by DDW may be evaluated for involuntary consolidation if TMF deficiencies cannot be resolved.
  • SWRCB has authority to require underperforming systems to develop and implement a capacity improvement plan as an alternative to consolidation.

What This Means for Small Systems

Many small water systems — mutual water companies, HOA-operated systems, and small CWS — have never undergone a formal TMF evaluation. This creates significant regulatory exposure, particularly if the system is already struggling with compliance issues.

A proactive Aqua Solutions TMF assessment identifies where your system stands today, documents good-faith corrective efforts, and provides the board with a clear roadmap before DDW or SWRCB initiates action.

Get Your Free TMF Initial Review

Frequently Asked Questions

Our system has never had a TMF assessment. Where do we start?

Start with a call. Aqua Solutions will conduct a no-cost initial review of your system's compliance history, permit status, and any DDW correspondence — then provide a clear scope and cost estimate for a full TMF assessment. Most small systems can complete the full process in 4–8 weeks from engagement to final report.

Can Aqua Solutions work with our DDW District Office directly?

Yes. We can communicate directly with your assigned DDW District Office or SWRCB program manager on your behalf — coordinating document submissions, responding to DDW questions or requests for additional information, and representing your system's compliance efforts throughout the process.

Our system is a mutual water company. Does TMF apply to us?

Yes. Mutual water companies that serve as community water systems (CWS) are subject to full SWRCB oversight and TMF capacity requirements. The cooperative or nonprofit ownership structure does not exempt the system from state drinking water regulations. Mutual water companies with volunteer boards are exactly the type of system Aqua Solutions is built to serve.

How long does a TMF assessment take?

For a small system (fewer than 500 connections), a full TMF assessment and Capacity Improvement Plan typically takes 4–8 weeks from engagement to final report. Timeline depends primarily on the availability of existing records and access to key personnel for interviews. We work efficiently and communicate clearly at every step.

We received a Compliance Schedule Order from DDW. Can you help us respond?

Yes — this is one of the most time-sensitive situations we handle. Contact us immediately. We will review your compliance order, assess your current TMF status, and help you develop a credible, defensible response and corrective action plan within DDW's required timeframes. Do not let DDW deadlines pass without a formal response — the consequences of non-response are severe.

TMF Assessment — Frequently Asked Questions

What is a TMF capacity assessment for a water system?

A Technical, Managerial, and Financial (TMF) capacity assessment evaluates whether a public water system has the resources to consistently provide safe, reliable drinking water. California's SB 1188 requires the State Water Resources Control Board (SWRCB) to assess small water systems for TMF capacity — and to require corrective action when deficiencies are found. Aqua Solutions Consulting prepares complete TMF capacity assessments and improvement plans designed for DDW submission.

What does SB 1188 require of small water systems?

SB 1188 (California Senate Bill 1188) requires the SWRCB to assess the TMF capacity of water systems that consistently violate drinking water standards or face serious compliance challenges. Systems that fail the TMF assessment may be required to develop improvement plans, consolidate with other systems, or transfer management to a new operator. Proactively preparing a TMF assessment is one of the best ways a small water system can demonstrate regulatory good faith.

How long does a TMF assessment take?

A typical TMF capacity assessment for a small community water system takes 3–6 weeks depending on system complexity, data availability, and the responsiveness of system management. Aqua Solutions Consulting works directly with your board or management to gather the necessary technical, operational, and financial data — and formats the final deliverable for direct DDW submission.

Can Aqua Solutions Consulting help with a consolidation feasibility study?

Yes. If your system is facing pressure to consolidate with a neighboring system — whether voluntary or regulator-driven — we can assist with feasibility documentation, comparative analysis, and the compliance narrative that accompanies a consolidation proposal to the Division of Drinking Water.

Ready to Assess Your System's TMF Status?

Whether your system has received a compliance order, is planning a change of ownership, is preparing for a DDW sanitary survey, or simply wants to understand where it stands — Aqua Solutions Consulting provides a clear, credible, SWRCB-ready TMF assessment.

Get Your Free TMF Initial Review