Compliance Monitoring Planner

The Data Analyzer tells you what your data says. This planner tells you what the regulations require for your specific system: which federal monitoring programs apply to you, the routine schedule each one demands, whether you may qualify for reduced monitoring — and what would trigger increased monitoring. A built-in lab & method check screens the laboratory’s certification, the analytical methods, and the detection limits behind your results — because a result is only as good as the lab behind it. Answer a few questions about your system; get a system-specific screening you can act on.

State primacy note. This planner applies the federal requirements (40 CFR Part 141). States with primacy may impose stricter monitoring — always confirm the final schedule with your state drinking water program.

Private by design. Everything runs 100% in your browser — nothing is uploaded to any server. How we handle your data →

Step 1 — Tell us about your drinking water system

A · System identity

System name Optional — used only in your report.

State States with primacy may be stricter than federal rules.

System type

B · Size & source water

Population served Determines sample counts and schedule tiers.

Source water type

C · Treatment

Does the system add a chemical disinfectant?

Yes No

Disinfectant type(s)

Chlorine
Chloramine
Chlorine dioxide
Ozone
UV

Filtration For surface-water / GWUDI systems.

D · Compliance history

Any MCL, treatment-technique, or action-level violations in the past 3 years?

No Yes

Which rule(s) and when? e.g. TTHM MCL 2024; coliform TT 2025

Any monitoring or reporting violations in the past 3 years?

No Yes

Most recent sanitary survey: free of uncorrected sanitary defects, protected source, approved construction?

Clean compliance history for the last 12 months? Needed for some reduced schedules.

Yes No

E · Current approvals & waivers

If your state already put a program on a reduced schedule or waiver, select it — the planner will check it instead of re-recommending it.

F · Jurisdiction & standards

Standards comparison found.

Where is the system?

United States (state primacy) Overseas DoD installation

Host nation Used for FGS reference.

Standards to compare The strictest numeric limit wins (“binding limit”). US EPA is always included.

US EPA NPDWR (40 CFR 141)
OEBGD (DoD overseas baseline)
Custom standard

Your custom standard Installation instruction, base order, corporate policy — anything stricter you must meet. Saved in this browser.

Host-nation FGS values Enter any Final Governing Standard limits you need to meet — they join the comparison as “FGS”.

G · Lab & method compliance

Regulations judge more than the result: the analytical method must be approved, the detection limit must be low enough to prove compliance, and the laboratory must be certified for that parameter and method. Enter the lab’s certification below and paste historical results — the screening checks all three when you generate your plan.

Laboratory name

Certificate ID

Issuing authority

Certificate expiry

Certified parameters What the certificate actually lists — one row per parameter and method, with the lab’s detection limit.

Historical results — method & detection-limit check Paste CSV, one sample per line: Parameter, Method, DetectionLimit, DLUnit, Result, Unit, ND (Y = non-detect). Header row optional.

Step 2 — Generate your monitoring plan screening

Your monitoring plan screening

Action items

Binding limits — strictest standard wins

Limits compared across the standards you selected. Schedules below remain CFR-based; where another standard drives the limit, it is flagged.

Program-by-program determination

Lab & method compliance

Laboratory certification, analytical methods, and detection limits screened against the required parameters. A result is only as good as the lab behind it.

How it works

Describe your system. Type, size, source water, treatment, history, and any state approvals — the same factors the regulations use.
Optionally import your data. If you already ran the Data Analyzer in this browser, one click pulls in your last analysis for an actual-vs-required comparison.
Get the screening. Per program: does it apply, the routine schedule, reduced-monitoring eligibility with the exact qualifying criteria, and increased-monitoring triggers — with CFR citations.
Check the lab and the methods. Enter the laboratory’s certification and paste historical results to screen certification coverage and expiry, method approval, and whether detection limits are low enough to prove compliance.

Coming in Pro: the operational layer

Turn this screening into day-to-day operations: a 12-month sampling calendar, automatic re-evaluation when violations or system changes occur, a reduced-monitoring application packet generator, and multi-system management. Leave your email and we will let you know when it launches.

Limitations

This is a screening aid, not a compliance determination. It applies the federal rule framework (40 CFR Part 141); your state primacy agency may impose stricter schedules, additional programs, or different reduced-monitoring criteria. Monitoring waivers and reductions always require written state approval. Confirm every schedule with your state and the current eCFR before making compliance decisions. Full limit tables live in the Drinking Water Compliance Center.

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