What matters for project planning
Neither record has much to say about plumbing inside a house, and it would be padding to pretend otherwise. Where they do reach the trade is at the property line and below it. Work on a sewer lateral or a water service line is excavation in the right-of-way or across a recorded easement, and the stormwater department's mapped drainage information is exactly what tells you what else is buried along that route. There is also a connection worth naming: a downspout or footing drain improperly tied into a sanitary line is a real problem in older textile-era housing, and it is a stormwater issue and a plumbing issue at the same time.
Official sources
City-level facts aren’t parcel-level facts
None of the citywide notes above establish a specific parcel’s flood zone, historic-district status, stream buffer, permit requirements, soil conditions, or concealed construction. Get those confirmed by the relevant authority and your chosen provider before work begins.
These sources were last checked on June 20, 2026; requirements and maps can change after that date.