Sump pumps may not discharge into the sanitary sewer in Greater Cincinnati. MSDGC rules require sumps and foundation drains to discharge to a storm-appropriate exterior point. On the Kentucky side, Sanitation District 1 (SD1) rules apply. We build every discharge to the correct local rule.
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The Metropolitan Sewer District of Greater Cincinnati (MSDGC) prohibits sump pumps and foundation drains from discharging into the sanitary sewer. A sump tied into the sanitary line surcharges the system, contributes to combined-sewer overflows, and can backflow into your own basement during heavy rain. MSDGC has run downspout and foundation-drain disconnection efforts and, in combined-sewer neighborhoods prone to basement backups, backwater-valve and basement-protection programs under its Protect Cincinnati and related initiatives. The compliant discharge for a sump is to a managed exterior point: a pop-up emitter in the yard, a discharge line carried well away from the foundation, or another storm-appropriate outlet, never the sanitary sewer and never right against the foundation where the water just recirculates back to the footer. On the Northern Kentucky side, Sanitation District 1 (SD1) administers the equivalent stormwater and sanitary rules for Boone, Kenton, and Campbell counties. Individual suburbs sometimes add their own grading or discharge-setback requirements on top of the district rule. Getting discharge right is part of every quote we write, not an afterthought, because a non-compliant discharge is both a code violation a resale inspection can flag and a practical cause of recurring wet basements. Confirm any contractor's plan names the specific discharge point and the jurisdiction's rule before you sign.