{"id":"sanitary-forcemain","version":"0.3.0","classification":{"uniformat":"G3020"},"names":["Sanitary forcemain"],"aliases":["forcemain","force main"],"service_life":{"median_years":91.5,"range_years":[83,100],"range_basis":"source_spread"},"pm_tasks":[{"task":"Inspect force main route yearly: pipe, joints, valves, leaks, noise, vibration","frequency":"P1Y","reference":"Wastewater Technology Fact Sheet: Sewers, Force Main (EPA 832-F-00-071)","url":"https://www3.epa.gov/npdes/pubs/force_main_sewers.pdf","page":4,"checklist":"Operation and Maintenance"}],"basis":[{"type":"public_document","life_type":"planning","title":"Halton: Halton Region 2025 Asset Management Plan","url":"https://www.halton.ca/repository/halton-region-asset-management-plan","page":86,"label":"Forcemains","years":83,"note":"Asset management plan (planning life). Compared with an image of the cited page."},{"type":"public_document","life_type":"planning","title":"London: 2023 Corporate Asset Management Plan","url":"https://london.ca/sites/default/files/2023-10/Corporate%20Asset%20Management%20Plan%202023.pdf","page":95,"label":"Forcemains","years":100,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."}],"confidence":{"grade":"C","sample_size":null},"open_questions":["These are Ontario accounting lives from municipal capital asset policies, not planning or observed replacement data.","A short technology fact sheet (2000), not an O&M manual; it recommends the annual route inspection without detailed procedure."],"contributors":["unfinished.one editors"],"last_reviewed":"2026-10-22","canonical_url":"https://unfinished.one/c/sanitary-forcemain","versioned_url":"https://unfinished.one/c/sanitary-forcemain/v/0.3.0","licence":"CC-BY-4.0","citation":"unfinished.one (2026). Sanitary forcemain, v0.3.0. https://unfinished.one/c/sanitary-forcemain/v/0.3.0"}