East Ridge water and sewer rates
Who supplies water to East Ridge houses, what it costs, and how the sewer charge works.
Pay or manage it
Tennessee American Water
Tennessee American Water residential General Water Service Tariff (effective January 21, 2025), which applies in East Ridge: a monthly service charge by meter size plus block rates per 100 gallons, with the PCOP rider (0.97% from June 1, 2026) applied to the total bill
| Use a month | Price per 1,000 gallons |
|---|---|
| Fixed charge | $20.11 a month |
| 0 to 3 thousand gallons | $0.51 |
| 3 to 48.6 thousand gallons | $8.03 |
| 48.6 to 374 thousand gallons | $5.05 |
| 374 to 3740 thousand gallons | $3.77 |
| 3740 to 11200 thousand gallons | $2.88 |
| 11200 to more | $1.71 |
- Source
- The Citico Water Treatment Plant in Chattanooga draws surface water from the Tennessee River.
- Testing
- In 2025, the water met state and federal drinking water requirements.
- Lead
- 2025 lead testing: 90th percentile below 1 ppb, and 0 of 51 homes sampled above the action level.
- Hardness
- Hardness averaged 76 ppm (4.4 grains per gallon) in 2025, which the report lists as moderately hard (61 - 120).
Sewer
Hamilton County WWTA bills sewer on metered water use: $20.45 per 1,000 gallons for the first 100,000 gallons a month from October 1, 2026, plus an $8 Private Service Lateral Program fee for gravity-sewer customers. Tennessee American Water customers get a separate sewer invoice from ENCO Utility Service.
Dates
| When | What |
|---|---|
| Feb 28, 2027 | Your 2026 Hamilton County Trustee bill, which also carries the East Ridge city tax, sanitation fee and stormwater fee, is due by the last day of February; on March 1 county taxes become delinquent and accrue 1 1/2% interest a month. |
| Due date on your sewer bill | WWTA adds a 10% penalty to past-due sewer bills; payments must be posted by the due date on the bill. |
Sources
- Tennessee American Water tariff TPUC No. 20, effective January 21, 2025 (TPUC Docket 24-00032)
- Tennessee American Water riders effective June 1, 2026 (TPUC Docket 26-00002)
- Tennessee American Water rate workpapers, February 2025 (TPUC Docket 24-00032)
- Tennessee American Water 2025 water quality report, Citico plant
- Tennessee American Water 2024 rate petition, corrected page 4
- Hamilton County WWTA schedule of wastewater rates, October 1, 2026
- Hamilton County WWTA: understanding your sewer bill
- Hamilton County Water Quality Program FAQ (stormwater fee)
Checked October 22, 2026. Every number here comes from the public sources listed, matched by our checker.
Rates change every year; this page shows when it was last checked. Nothing here is legal, tax or insurance advice.