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Tools you can use this afternoon, whether or not you ever sign up.

Built on the same rules the product is built on, with the citation beside every answer. If one of these is wrong for your county, tell us — we'd rather fix it here than in a filing.

TX 285 & NC 18E deadline calculator Next three visit dates and each filing deadline, for Texas or North Carolina. 30 TAC §285.7(e)(1)(B) · 15A NCAC 18E .1304(c) Texas aerobic report compliance checker Check one visit against Table IV test results, the four-month interval and the 14-day deadline. 30 TAC §285.91(4) · §285.7(e)(1)(B) Contract-lapse notice generator The Texas 30-day notice to the county and manufacturer, or the NC non-renewal notice, with an owner letter. 30 TAC §285.7(d)(3) · 15A NCAC 18E .1304(f) Aerobic maintenance contract template Free with email Fill-in contract with every clause the rule requires marked and cited, for Texas or North Carolina. 30 TAC §285.7(d)(1) · 15A NCAC 18E .1303(b) Contract pricing benchmark + margin calculator What Texas providers publish, and what a contract leaves you after drive time, labor and chlorine. Published TX provider prices, retrieved Oct 9, 2026 Do I charge sales tax? (TX / NC) Maintenance, pump-outs, repairs, parts and installs, by state and property type. Texas Comptroller Pub. 94-116 · NCDOR services chart Aerobic septic alarm guide by brand What the light or buzzer means on Hoot, Clearstream, Norweco and Jet panels, in the maker’s own words. Manufacturer manuals · 30 TAC §285.34(b) Septic pumping-frequency estimator Years between pumpings from tank size and household size, from the published extension table. Ohio State AEX-740 via U. of Arizona AZ1160 State aerobic septic mandate lookup Which states require a maintenance contract, a set schedule and reports to a regulator. All 50. 50-state review, Sep 26, 2026

TOOL 01

TX 285 & NC 18E deadline calculator

Pick your state, the last inspection date and the county. Get the next three visit dates and each filing deadline — 14 days after the visit in Texas (30 TAC §285.7(e)(1)(B); visit frequency §285.91(4), Table IV), 30 days in North Carolina (15A NCAC 18E .1304(c)).

Assumes the standard interval for the state and that each visit happens on its due date.

FIG. 14 — INPUTS
State
County

How your county takes the report →

Standard TX aerobic interval: every 4 months, report to the authorized agent within 14 days of the visit (30 TAC §285.7(e)(1)(B); visit frequency §285.91(4), Table IV). If your agent sets a tighter local rule, that wins.

NEXT THREE · HAYS

    DulyTrack · Computed from 30 TAC §285.7(e)(1)(B) (report within 14 days); visit frequency §285.91(4), Table IV. Your authorized agent's own requirements win. Not legal advice.

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    WHERE TO FILE

    Where to file in your county

    Each of the 254 Texas counties has a page with its permitting authority, how it takes the §285.91 report where the county has published that, and the licensed providers working there. Four of the 254 channels are confirmed; the rest say so on their own page rather than guessing.

    Texas rules are statewide. How you file them is not — and in North Carolina every local health department takes the operator's report its own way.

    All 254 Texas counties North Carolina

    The product does all of this for every system, every day, without the typing.

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