Spring Hill Sewer Moratorium

A sewer moratorium is a freeze on new connections to a public sewer system, usually because the treatment plant can't take more flow without breaking its discharge permit. Homes already hooked up keep flushing as normal. What stops is new development that would add wastewater. Spring Hill's came from the state after the city self-reported 29 effluent violations at its plant between 2023 and 2025.

The August 2025 consent order restricted sewer connections for projects without vested rights. Spring Hill later paused portions of development processing while it measured remaining plant capacity. On January 5, 2026, the board adopted Ordinance 25-29 and replaced that broad pause with a one-time capacity-allocation framework.

The allocation numbers show how tight the math is. Ordinance 25-29 calls itself a one-time allocation of all remaining treatment capacity: 207,403 gallons per day for existing development agreements, 62,500 gallons per day for 250 permit-ready vacant lots, 65,000 for critical infrastructure, and a 100,000-gallon discretionary reserve that Ordinance 26-01 later amended. Allocated projects must install flow meters. The ordinance states plainly that no additional development capacity remains available.

So the January vote reopened processing only for applications that fit the framework. It didn't announce new sewer capacity. Read the city's framework summary and the current ordinance index.

Nothing that ends the moratorium. We read the city's news posts and the Board of Mayor and Aldermen minutes from February through July 2026. The pattern is steady, case-by-case rationing. The board finalized the reserve amendment (Ordinance 26-01) on March 2, then voted on individual reserve requests from businesses. Allocations went to named tenants, and one June vote split 8-1.

The reserve is tiny by design. A September 21, 2026 staff memo says the board had granted 500 gallons per day from the 100,000-gallon reserve so far, and describes the reserve as meant for qualifying nonresidential tenant improvements in existing buildings. For scale, Ordinance 25-29's vacant-lot group works out to 250 gallons a day per lot (62,500 gallons for 250 lots). If you're hoping to carve a new home site out of that reserve, ask the city directly before you count on it.

The longer-term fixes are in motion but not finished. A sewer rehabilitation project aimed at inflow and infiltration started in June 2026 and is expected to run into early 2027. Staff presented a proposed force-main connection to Columbia on June 15. On July 20 the board adopted design requirements for decentralized wastewater systems, the small private treatment plants some developers want to use instead of the city plant. The city's FY27 budget also projects lower development-fee revenue because of the moratorium, which tells you nobody at City Hall expects it to vanish soon.

Sources: the September 21, 2026 agenda packet (Ordinance 26-17 and staff memo), BOMA minutes for March 2, June 1, June 15, and July 20, 2026, and the city's sewer rehabilitation notice.

A project may proceed with documented vested or allocated city sewer capacity, wait for later capacity, use a city-approved decentralized approach where available, or pursue an individually permitted septic system if the site and land-use rules allow it. Each route runs through a different authority, so a contractor can't swap one for another mid-project.

Septic isn't just a theory here. At the April 20, 2026 board meeting, staff reported that one commercial applicant didn't qualify for a decentralized system and had been advised to pursue septic, with staff recommending approval contingent on the required approvals and a long-term maintenance plan (April 20 minutes).

For a Maury County septic route, start with a soil and site evaluation and the TDEC permit process, then compare the permitted system's installation and ownership cost. Building new? The new-construction septic guide sequences the whole thing. Spring Hill's city limits cross the county line, so never assume the same septic office handles two nearby addresses.