LineComply is the compliance workbench for community water systems under 10,000 population — the service line inventory, the annual resident letters, the state certifications, and the audit trail, in one place your clerk can run.
Drag in your spreadsheet — the EPA template, your state's form, or the one your engineer made years ago. Columns map automatically, messy values like "galv" and "unk" clean themselves, and every line gets its EPA classification.
Nothing to install · works with what you haveEvery lead, galvanized, and unknown address gets its required annual letter — ready-to-mail PDFs plus a mail-house file. Mark them delivered and the state certification generates itself.
460 letters in 8.6 seconds, in testingThe calendar tracks every deadline through full replacement — annual updates, the 2027 baseline, the 2034 validation — and your evidence log builds the audit trail as you work, not the night before.
Every obligation, with its federal citationThe rule says every household on a lead, galvanized, or unknown line gets a written notice, every year, with specific required content. For a town with 800 unknowns, that's 800 letters — addressed, printed, mailed, then certified to the state.
LineComply turns it into: click, download, hand to the mail house, click "delivered." The certification is waiting for your signature — and next year, it remembers everything.
Any CSV, auto-mapped with a preview. Updates never overwrite what you didn't send.
Lead / GRR / Unknown / Non-lead derived by the rules — unknowns fail safe, never silently.
Every deadline to 2037 with citations — including the 2027 rule-change fine print.
Required-content letters, batch PDF, mail-house CSV, delivery tracking.
State-ready PDFs generated from your actual delivery records.
Records reviews, field checks, surveys — the 2034 validation trail, built as you go.
Plus: a multi-system console for contract operators and engineering firms, EPA-format exports for state filing, and paper-records digitization as a flat-fee service — we turn the shoebox of tap cards into your starting inventory.
Paper records digitization (tap cards, drill logs, city archives): flat-fee project from $1,500 — becomes your live inventory on day one.
Ask what last year's notice cycle cost in billable hours — generating, mailing, and certifying letters is often billed at engineering rates for work a $99 tool does in minutes. Many systems keep their engineer for the judgment calls and use LineComply for the recurring grind. (Engineers: the multi-system plan exists for exactly you.)
Yes — that's the point. LineComply exports in your state's required format (Missouri's DNR spreadsheet, Pennsylvania's DWELR upload, the EPA template elsewhere) and tracks your state's specific deadlines. You keep filing exactly where the state says; you just stop assembling it by hand.
If any of your lines are "unknown" — and for most small systems that's a third or more — yes: annual letters to every unknown address, annual inventory updates, and evidence-backed verification by the 2030s. Unknowns carry nearly the same workload as lead until you prove them out. That proving-out is what the evidence log is for.
An afternoon, usually less. Send us (or drag in) whatever inventory you have; the wizard maps it; your dashboard, deadlines, and first notice batch are ready the same day. Still on paper? The digitization service turns the shoebox into your starting inventory.
It's yours. One click exports your full inventory in EPA format, plus every letter and certification PDF you've produced. No contract holds you — we'd rather earn the renewal each month.
Fifteen minutes, your actual spreadsheet, live on a screen share — and you'll know exactly where your system stands. No pitch deck, no pressure.