Every state runs water its own way.
Certification, compliance, and money for small water systems. Two ways in: find your state, or jump straight to your job.
Jump straight to your job
Operator, manager, or board member. Each door collects everything for that seat.
Operators
You are studying for the exam, fixing what is broken, and trying to get the math right under pressure.
Managers
You run the system day to day: stay compliant, keep people, and plan the money before it runs out.
Boards
You are new to the board and not sure what you are responsible for, what to ask, or who regulates what.
A free resource from Ziptility
We make software for small water systems. The Field Guide is not that software, and nothing here is for sale. It exists because the people running 500-connection systems deserve straight answers as much as the people running 500,000.
Built to be used, not bought
Practice
Practice tests
Original questions, every answer backed by a source. Six exam banks, practice or timed mode.
Calculator
Operator calculator
Run dosage, detention time, loading, and the 8.34 relationship with worked steps, not just an answer.
Open the tool →
Reference
Formula sheets
Every operator formula on one printable page, by discipline. Keep it in the truck.
Open the sheets →
Self assessment
Utility health report card
See how your system scores across 23 areas, then hand the printable report to your board. No email, no account, no gate.
Open the report card →
Certification by state
Every state, A to Z
Certification rules, renewal deadlines, and who to call, one page per state.
Learn how it actually works
Compare across states
The whole set, compared
The state guides answer one state at a time. These three put every state that publishes a rule side by side, from the same agency sources, so you can see the shape of it before you pick up the phone.
Reciprocity by state
Does the certificate you already hold transfer? Each state's posture, and the basis it turns on.
See how each state handles reciprocityCertification cost by state
Exam, application, and renewal fees, as each state publishes them. Three states publish none and are not listed.
See what each state chargesCEU requirements by state
Continuing education hours and how long the renewal cycle runs. Two states publish no requirement and are not listed.
See each state's CEU ruleEvery guide