How does an HOA board run its own community water system?

By OurHOA · General information · Revised September 28, 2026

How an HOA board runs its own drinking water system: EPA thresholds, licensed operators in TX, FL and CO, sampling, the July 1 water quality report and bad results.

Part of the HOA board handbook: vendors, projects and upkeep.

The short answer

If the association owns the wells, tank and pipes that deliver drinking water to 15 or more homes, it is almost certainly a regulated public water system, and the board is the system owner in the eyes of the state. That comes with four standing jobs: keep a state-licensed operator, take the required water samples on schedule, send owners an annual water quality report by July 1, and warn owners within 24 hours when a test finds E. coli. None of this needs a director with a science degree. It needs a contract with a licensed operator, a calendar that someone on the board owns, and a budget line that pays for both. Drinking water rules are federal minimums that each state enforces with its own rules, and your declaration decides whether the system is a common element. This guide is general education, not legal or engineering advice. Your state drinking water program has the final word on your system.

Check whether you are a public water system

Federal rules at 40 CFR 141.2 define a public water system as one that provides water for human consumption through pipes to at least 15 service connections, or regularly serves an average of at least 25 people daily for at least 60 days a year. A community water system is one of those that serves at least 15 connections used by year-round residents, or at least 25 year-round residents. An HOA of 26 homes on a shared well clears both lines. So the real question for most boards is whether the state's records are current. Look up your system in the state program's database or call the program and ask for your public water system ID number, the operator of record, and your monitoring schedule. Older subdivisions sometimes find the developer's name still on file, or a schedule nobody has followed since turnover. Fix the contact record first. Every violation notice goes to whoever is listed there.

Hire a licensed operator

Texas, Florida and Colorado all require a licensed or certified operator, and none of them lets a volunteer director fill the role without the license. Texas. Under 30 TAC 290.46(e), a system that treats only groundwater and serves no more than 250 connections must use an operator with a Class D license or higher. From 251 to 1,000 connections, the operator needs a Class C or higher groundwater license. The same rule sets record retention: microbiological results for at least five years and monthly operating reports for at least ten. Florida. Rule 62-699.310 sets staffing by plant type and size. A Category V plant, one that only chlorinates, aerates, adjusts pH or does similar simple treatment, with capacity under 50,000 gallons a day needs a Class D or higher lead operator who visits twice a week on nonconsecutive days, with no more than five days between the last visit of one week and the first visit of the next. Colorado. Regulation 100, at 5 CCR 1003-2-100.10, makes the owner designate a certified operator in responsible charge on the division's contact update form, and file an update within 30 days of any change. Decisions about water quality or quantity that may affect public health must come from a certified operator at or above the facility's class. Most small systems hire a contract operator who covers several systems. Get a written contract that names the license number, the visit schedule, who collects and ships samples, who files reports with the state, and the response time for an after-hours pressure loss or a positive test.

The sampling calendar

The operator takes the samples, but the board should keep its own copy of the schedule, because the state holds the owner responsible for a missed one. Bacteria. Under 40 CFR 141.855, a community system on groundwater serving 1,000 or fewer people starts at one total coliform sample a month. The state can cut that to quarterly only after a clean 12-month record, a sanitary survey without uncorrected defects, and at least one added safeguard such as continuous disinfection or a cross-connection control program. Our guide on setting up an HOA irrigation backflow testing program covers the cross-connection side. Lead and copper, nitrate and the other chemical tests run on longer cycles the state sets for each system. Ask the state or your operator for the full list in writing and put every due date on the board calendar. The lead service line inventory. Federal rules required every community system to prepare an inventory of service line materials by October 16, 2024. If the board has never seen one, ask the operator whether it was filed. A community with no inventory on record has a gap to close now.

The annual water quality report

Every community water system must deliver a consumer confidence report to its customers by July 1 each year, with data from the previous calendar year, under 40 CFR 141.152. Within 10 days after that deadline, the system sends the state a copy and a certification that it went out. Most states publish a fill-in template, and many contract operators prepare the report as part of their fee. The board's job is to review it, approve it and get it delivered. Under 40 CFR 141.155, states can let systems serving 500 or fewer people skip mailing and instead give notice once a year that the report is available on request, by mail, door-to-door or a posting where residents will see it. Emailing or mailing the full report to every owner is simpler and heads off questions. A cover paragraph the board can adapt: "The association owns and operates the water system that serves our homes. Attached is our [year] water quality report, which lists the tests the state required last year and the results. [Our water met all federal and state standards.] Send questions to [operator name] at [phone] or the board at [email]." Only include the bracketed sentence if it is true.

When a sample comes back bad

An E. coli result is the emergency. Under 40 CFR 141.202, a violation of the E. coli limit calls for a Tier 1 public notice as soon as practical and no later than 24 hours after the system learns of it, and the system must start consulting the state within the same 24 hours. The state usually tells you whether to issue a boil water notice and what it must say. Write the plan before you need it. Keep a current list of owner emails and phone numbers, decide who on the board can send a notice at night without a meeting, and keep a notice template from the state program on file. Door hangers reach homes that ignore email. Once the notice is out, the operator takes repeat samples, finds the cause and disinfects, and the notice stays up until the state says it can come down. For anything less urgent, such as a missed sample or a late report, the state sends a violation letter with its own notice deadline. Answer it on time and in writing, and put a copy in the association's records.

Budget, reserves and the owner rules

Price the system as a separate cost center so owners can see what their water costs. The operating budget should carry the operator contract, lab fees, electricity for well pumps, chlorine or other treatment chemicals, state fees, insurance and a repair allowance. In the reserve study, list each well pump, pressure tank, storage tank, treatment unit and the distribution pipes as separate components with their own useful lives. Our guide on hiring a reserve study company covers that side. A motion to adopt the operator contract: "Move to engage [company], license [number], as the licensed operator of the association's water system for [term] at $[amount] per month, per its proposal dated [date], including routine sampling, state reporting and preparation of the annual water quality report, and to authorize the president to sign." The owner rules should bar cross-connections such as a private well tied into house plumbing, require backflow devices where the operator calls for them, and give the operator access to meters and shutoff valves. Our guide on whether an HOA can restrict a private well or alternative water source covers the owner side.

A sample year and the mistakes to avoid

January: confirm the year's sampling schedule with the operator and the state, and check the contact record. Every month or quarter: bacteria samples, with results forwarded to the board secretary. By April: the operator drafts the water quality report. By July 1: report delivered to every owner. By July 11: copy and certification sent to the state. Summer: peak demand, so check storage levels and pump run times. Fall: budget review and any sanitary survey follow-up. Once a year: test the notice plan so the board knows the owner contact list works. The mistakes repeat. Boards let the operator contract lapse at turnover and learn about it from a violation letter. They leave a former director's phone number on the state contact record, so a positive test result goes to someone who moved away. They skip the July report because nothing went wrong that year. They treat the wells as maintenance-free until a pump fails in August with no reserve money for it. And they let an owner tie a private well into the house plumbing without a backflow device. A calendar, a contract and one board member assigned to watch both prevent all five.

Sources

These guides are general education for HOA boards and residents, not legal, tax, or financial advice. Rules vary by state and by your community's governing documents - check with a professional for your situation.

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