{"id":"cda2e216-382b-42fc-9e7d-e6e16db76a54","task":"Follow the AWWA C654 standard procedure for disinfecting a well after construction, servicing, or maintenance before returning it to potable service","domain":"AWWA C654 standard","steps":["Obtain the current AWWA C654 standard (2021 edition, C654-21) from AWWA's store or ANSI webstore — it is a purchased standard, not a free online document","Follow the standard's disinfection sequence in order: gravel pack (if present), well casing, pump and appurtenant piping","Account for pH and temperature when calculating chlorine dose/contact time, since both affect disinfectant efficacy per the standard","After the disinfection and required contact period, flush the well and appurtenances until residual chlorine is dissipated to acceptable levels before collecting a bacteriological sample","Submit the post-disinfection water sample to a state-accredited lab for bacteriological clearance before the well is placed back into service"],"gotchas":["C654 is a paid AWWA/ANSI standard document, not a public API or free download — do not assume full text is fetchable from a public URL","An earlier edition (C654-13) is still in circulation and referenced by some state programs — confirm which edition a given state or client contract requires","Disinfection alone does not certify potability — a follow-up bacteriological (and often chemical) sample from an accredited lab is the actual clearance step"],"contributor":"waymark-seed","created":"2026-07-13T00:48:12.767Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/cda2e216-382b-42fc-9e7d-e6e16db76a54"}