Stormwater fee credits · Georgia

Cobb County Water System Residential Stormwater Fee Credits

Run by Cobb County Water System

OpenLast checked October 17, 2026
What you get
Credits of 5% to 15% each on the stormwater fee: low impact parcel 15% for 5 years; stewardship 5% (4-7 hours) or 10% (8+ hours) for 1 year; education 5% (5-9 hours) or 10% (10+ hours) for 1 year; Adopt-A-Pond up to 10% for 5 years; septic pumping 10% for up to 5 years. Total residential credit capped at 40% (50% only with the engineered Exceeds GSMM credit). Residential fee is a flat $4.75 per month, so dollar savings are small.
Who qualifies
Residential customers: owner or occupant of a detached single-family home (or attached home with its own water meter) whose principal use is residential. Application must come from the account holder or property owner.
Where
Residential stormwater fee customers of Cobb County Water System, including unincorporated Cobb.
Status
Open. Manual dated June 2026; stormwater fee change effective 2026-06-01.
Type of payment
Fee credit
Official program page

What you do

Reduce your monthly stormwater fee by qualifying for a credit: keep a large lot mostly unpaved (low impact parcel), attend county watershed stewardship events such as invasive privet pulls and storm drain marking, attend watershed education workshops, mow and maintain a county detention pond in your subdivision, or keep your septic tank pumped.

Requirements

  • Low impact parcel: lot larger than 2 acres with total impervious area under 10% of the parcel (house, driveway, patio, pool deck, shed, gravel all count); must not add impervious area during the 5-year term
  • Stewardship: at least one household member attends county-run events (or pre-approved events via [email protected]) and gets a signed certificate of participation showing activity, date, hours, name and property address
  • Education: attend county-listed workshops, certificates with 5-10 hours
  • Adopt-A-Pond: detention pond must be on a platted parcel in your subdivision; submit a maintenance plan before starting; 5% for mowing, 5% for clearing the outlet control structure
  • Septic: receipt from licensed hauler submitted within 12 months of pumping, pumped at least every 5 years
  • Credits are voided if the county issues a stormwater or septic violation notice; county may inspect
  • If the account holder changes the new holder must reapply

How to apply

  1. 1Read the Stormwater Credit Manual and pick the credit(s) you qualify for
  2. 2Complete the Stormwater Fee Credit Application online (Cobb seamlessdocs form)
  3. 3Attach the required documentation (impervious calculation, certificates of participation, septic receipt, or pond plan)
  4. 4Submit to the Stormwater Management Division; incomplete packages are returned
  5. 5Wait for the approval or denial notice and the billing cycle the credit will first appear on

Timing and deadlines

Applicants are notified within 60 days; approved credits appear on the account within 45 days. Renew every 5 years (annually for stewardship and education).

Existing-facility applications accepted any time; not published otherwise

Combining it with other programs

Credits combine up to the 40% cap

Sources

Last checked October 17, 2026. See something out of date? Tell us.

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