Service Area · NASSAU COUNTY

Sanitary Sewer & Stormwater Infrastructure Services in Nassau County

Southeast Services Supports Municipalities, Utilities, and Large Property Owners Across All Florida Counties With Sanitary Sewer and Stormwater Assessment, Cleaning, Rehabilitation, and Compliance Work.

County Infrastructure Snapshot · Past 12 Months

The Infrastructure Picture in Nassau County

FDEP Sanitary Sewer Overflows

Nassau County has 1 sanitary sewer overflow incident reported to FDEP in the past 12 months, totaling 10,000 gal of reported volume. That ranks Nassau #35 of 40 Florida counties with reported incidents in this window. The largest single incident in the window reported 10,000 gal.

Incidents: 1
Reported Volume: 10,000 gal
Most Recent: Oct 10, 2026

Infrastructure Age Context

Nassau's housing stock is 20.3% pre-1980, with an estimated median structure age of 31 years. Older housing correlates with older buried infrastructure, which drives the need for condition assessment and trenchless rehabilitation.

Pre-1940

1940 to 1959

1960 to 1979

14%

1980 to 1999

34%

2000+

46%

Source: US Census ACS housing-age estimates, 43,565 units in Nassau County.

Clean Water Act Enforcement

EPA ECHO records show 3 active consent decrees and 3 total enforcement actions affecting 0 regulated facilities in Nassau County. Most recent action: Nov 25, 2025.

Rainfall Context, NOAA

Nassau County recorded 37.5 inches of total precipitation across the past 12 months (NOAA station coverage 100%). Rainfall pulses are the primary driver of inflow and infiltration in older collection systems.

County Data Read · Trailing 12 Months

What the Data Shows in Nassau County

Across the trailing 12 months, Nassau County logged 1 sanitary sewer release in FDEP public notices, with 10,000 gallons reported in total. That ranks Nassau County number 35 of 40 by reported volume. The single largest event in the window released 10,000 gallons. The most recent notice is dated October 10, 2026. A low count still marks the Nassau County basins worth watching. Only 20.3% of the 43,565 Nassau County housing units in US Census ACS estimates predate 1980. The estimated median Nassau County structure is 31 years old. Younger construction still warrants CCTV pipeline inspection in Nassau County, since defects there are installation related.

Trailing 12 month rainfall over Nassau County came in light at 37.5 inches, on 100% NOAA station coverage. A dry window understates risk, because Nassau County never saw the groundwater that exposes infiltration and inflow. EPA ECHO records 3 active consent decrees and 3 total enforcement actions touching 0 regulated facilities in Nassau County, which puts documented condition work on a fixed schedule. Conditions in Nassau County follow Northeast Florida, where Alachua and Baker counties share the same material history. Coverage in Nassau County runs statewide, with crews mobilized for sanitary sewer rehabilitation, trenchless pipe repair, and stormwater system cleaning.

Sources: FDEP public notices, NOAA precipitation data, US Census ACS housing age estimates, and EPA ECHO enforcement records.

SES in Nassau

Statewide Capability, Local Crews When Mobilized

Southeast Services supports Nassau County on qualifying contracts, project mobilizations, and compliance engagements. Once engaged, our teams stay in position until the work is completed and verified to meet your unique needs.

Services Available