Atlanta Water and Watershed Management Department

Atlanta's Department of Watershed Management (DWM) is the municipal agency responsible for delivering drinking water, managing wastewater, and protecting the waterways that run through and around the city. This page covers the department's legal authority, operational structure, the types of situations it addresses, and the boundaries that distinguish city responsibilities from those of neighboring counties, the state, and federal regulators. Understanding how DWM functions is foundational to interpreting Atlanta's infrastructure planning, utility billing, and environmental compliance landscape.

Definition and scope

The Atlanta Department of Watershed Management is a city enterprise fund department operating under the authority of the City of Atlanta Charter. It provides water and sewer services to approximately 1.2 million customers across Atlanta and portions of surrounding jurisdictions under intergovernmental agreements (City of Atlanta DWM).

The department's mandate spans four core functions:

1. Drinking water production and distribution — Treatment of raw water drawn from the Chattahoochee River at two plants (Hemphill and Chattahoochee), followed by distribution through the city's pressurized pipe network.
2. Wastewater collection and treatment — Collection of sanitary sewage and its treatment at facilities including the R.M. Clayton Water Reclamation Center.
3. Stormwater management — Maintenance of the MS4 (Municipal Separate Storm Sewer System) permit under the U.S. Environmental Protection Agency's National Pollutant Discharge Elimination System (NPDES), regulated under 40 CFR Part 122.
4. Watershed protection — Monitoring and stewardship of Peachtree Creek, Nancy Creek, Utoy Creek, and other urban watersheds that drain into the Chattahoochee.

The department's service territory is not coextensive with Fulton County or DeKalb County as whole units. Certain unincorporated areas and other municipalities within those counties receive water through separate utilities or intergovernmental contracts, not directly from DWM. The Atlanta–Fulton County government relationship and Atlanta–DeKalb County boundary governance pages address how those jurisdictional lines affect utility coverage.

Scope limitations: DWM's authority does not extend to regulation of private wells, septic systems permitted under Georgia EPD jurisdiction outside city limits, or water quality standards set by the Georgia Environmental Protection Division (EPD) and the U.S. EPA — those agencies set standards that DWM must meet, but the rulemaking authority rests with EPD and EPA, not DWM.

How it works

DWM operates under an enterprise fund model, meaning it is self-funded through utility rate revenues rather than general tax appropriations. Rate structures are established by the Atlanta City Council and administered by DWM, with tiered pricing that increases per-unit costs at higher consumption bands. The Atlanta City Council approves rate changes through ordinance, and the Atlanta City Budget Process governs capital appropriations for major infrastructure projects.

Water is sourced from the Chattahoochee River under a water withdrawal permit issued by the Georgia EPD under the Georgia Water Stewardship Act (O.C.G.A. § 12-5-20 et seq.). Treatment must meet National Primary Drinking Water Regulations established by the U.S. EPA under the Safe Drinking Water Act (42 U.S.C. § 300f et seq.). DWM publishes an annual Consumer Confidence Report (CCR) disclosing water quality test results, as required under 40 CFR Part 141, Subpart O.

On the wastewater side, the R.M. Clayton facility discharges treated effluent into the Chattahoochee under an NPDES permit issued by Georgia EPD. Permit compliance is monitored monthly, and any exceedance triggers formal reporting obligations to EPD within timeframes specified in the permit conditions.

Stormwater management is a distinct operational track. DWM maintains the MS4 permit, which requires Atlanta to implement six Minimum Control Measures defined by EPA, including public education, illicit discharge detection, and post-construction stormwater controls. These obligations intersect directly with the Atlanta Permitting Process and Atlanta Zoning and Land Use frameworks, since new development triggers stormwater review requirements before permits are issued.

Common scenarios

The following situations represent the most frequent interactions between residents, property owners, developers, and DWM:

• Meter disputes and billing questions — Property owners contesting water or sewer bills engage DWM's customer service process. Billing is based on metered consumption, with sewer charges typically calculated as a percentage of metered water use.
• Water main breaks and service outages — DWM maintains an emergency response system for main breaks. Pipe infrastructure in Atlanta includes segments dating to the early twentieth century, and the city has undertaken phased replacement under its capital improvement programs.
• Sewer backups and overflows — Sanitary sewer overflows (SSOs) are federally reportable events under the NPDES permit. DWM is required to notify Georgia EPD and, in qualifying cases, the public within 24 hours of an overflow reaching a waterway, per EPA's SSO reporting framework.
• Development and capacity requests — Developers seeking water and sewer capacity for new construction submit capacity certification requests to DWM. Available capacity is assessed against system modeling, and the outcome affects whether a project can proceed on a given timeline — a process linked to the broader Atlanta Urban Development Initiatives.
• Stormwater fee assessments — Impervious surface area on a parcel determines the stormwater utility fee. Property owners with qualifying green infrastructure installations may apply for fee credits under DWM's credit manual.

Decision boundaries

Understanding what DWM decides versus what other bodies decide prevents misdirected requests and appeals.

DWM decides:
- Water and sewer connection approvals and capacity certifications
- Stormwater fee assessments and credit determinations
- Enforcement of pretreatment standards for industrial dischargers into the city sewer system
- Operational responses to infrastructure failures within city-maintained assets

DWM does not decide:
- Rate structures (set by Atlanta City Council ordinance)
- Permit limits for discharges to waterways (set by Georgia EPD under state and federal law)
- Drinking water maximum contaminant levels (set by U.S. EPA under the Safe Drinking Water Act)
- Land use classifications that affect impervious surface calculations (governed by the Atlanta Zoning and Land Use framework)
- Water supply allocation disputes between jurisdictions (adjudicated through Georgia EPD or federal courts)

A contrast worth drawing explicitly: DWM's stormwater program governs the city's MS4 system — the storm drains, pipes, and channels that carry runoff — while the Atlanta Department of Transportation owns and maintains the roadway surfaces that generate a significant share of that runoff. Coordination between the two departments is required when road construction or resurfacing projects affect drainage infrastructure.

The Atlanta Regional Commission plays a planning coordination role across the 11-county metro region, particularly on water resource planning under the Metropolitan North Georgia Water Planning District — a body established by the Georgia General Assembly (O.C.G.A. § 12-5-570 et seq.) specifically to address regional water supply, wastewater, and stormwater planning. DWM participates in that regional planning process but operates as an independent city utility within it.

For a broader orientation to Atlanta's municipal structure, the home page provides a navigational overview of all city departments and governance bodies covered across this resource.

Public records relating to DWM permit compliance, rate ordinances, and capital plans are accessible under Georgia's Open Records Act (O.C.G.A. § 50-18-70 et seq.), with requests submitted through the process described on the Atlanta Public Records Requests page.

References

• City of Atlanta Department of Watershed Management
• U.S. EPA — Safe Drinking Water Act (42 U.S.C. § 300f et seq.)
• U.S. EPA — NPDES Stormwater Program (40 CFR Part 122)
• U.S. EPA — Consumer Confidence Reports (40 CFR Part 141, Subpart O)
• Georgia Environmental Protection Division — Water Resources
• Georgia Water Stewardship Act (O.C.G.A. § 12-5-20)
• Metropolitan North Georgia Water Planning District (O.C.G.A. § 12-5-570)
• Georgia Open Records Act (O.C.G.A. § 50-18-70)