Connecticut · Professional use only
Connecticut SSDS calculations for people who already know the code.
Table-driven worksheets aligned with the Technical Standards, 1 January 2024. Not a permit. Not a PE stamp. Not a DPH or COWRA endorsement. Built for people who already open the Technical Standards.
Licensed installers, design professionals, and local health. Not for homeowners.
Live engine still
Captured from the Smart SSDS™ calculator — Job, Soil, MLSS, Product, Transit, and Reference. Job tab from the current GitHub engine, 12 Oak Lane sample. Header chips are computed (525 gpd, 788 SF ELA, 91.9 ft MLSS), not mocked.

Product
Twelve field flows
01
Job / buildingWhat sits on the lot, and which Table 1 setbacks apply.
02
BenchmarkOne site BM. Every later grade is relative to it.
03
Three test pitsDeep-hole log: mottling, groundwater, ledge.
04
Perc / MLSSMLSS = HF × FF × PF. Appendix A, not a model.
05
Table 5 tank + Table 6 ELATank volume and effective leaching area from the published tables.
06
97 TS-listed productsTS-listed products ranked by legal fit, not by manufacturer.
07
Section drawingOriginal grade, fill, system bottom, restrictive layer.
08
Fill padSelect fill, reduced PF footnote, receiving window.
09
Gravity vs. pumpDistribution method and the >25 gal/cycle dosing flag.
10
NCR / B100aNonconforming lot worksheet. Not a B100a approval.
11
PDF packetField packet with the same disclaimer on every page.
12
Device jobs / PWAJobs live on the device. The lot does not need cell service.
Pro · $59 / mo
Installers and design professionals
Perc, MLSS, listed product, NCR exhibit, PDF packet. Device jobs when the carrier drops. You still stamp the drawing.
Department · $249 / mo
Sanitarians and local health
Five seats for the district. Card for the manager now, or a PO the operator approves.
