Macon, Georgia — officially Macon-Bibb County since the city-county merger in 2014 — sits in the geographic heart of the state along the Ocmulgee River. It’s a city with deep history, a legendary music scene, and about 157,000 residents who depend on a water system that’s getting old. Really old.
The pipes that carry water under Macon’s streets and into its homes were in many cases installed in the early-to-mid 1900s. Some date back even further. And while the water treatment plant does its job, what happens between the plant and your faucet depends on the condition of the infrastructure in between.
The Infrastructure Problem
Macon Water Authority (MWA) operates the public water system serving Macon-Bibb County. The system includes hundreds of miles of water mains, thousands of service connections, and treatment facilities that process water drawn from the Ocmulgee River and supplemental groundwater wells.
The core issue is age. Much of Macon’s water distribution system was built during the city’s growth decades of the early and mid-20th century. Cast iron pipes from that era have a designed lifespan that many of Macon’s mains have long exceeded. When pipes deteriorate, several things can happen:
Water main breaks become more frequent. Aging pipes crack, corrode, and fail, particularly during temperature swings and ground movement. Each break means lost water, potential contamination from soil and groundwater intrusion, and service disruptions for affected neighborhoods.
Pressure fluctuations from breaks and aging infrastructure can allow contaminants to enter the system through cracks and joints. While water pressure normally keeps contaminants out, a drop in pressure — even briefly — can reverse that protection.
Corrosion of metal pipes releases metals into the water flowing through them. Iron pipes produce rust, which causes discolored water. Lead pipes and lead solder in older copper plumbing can leach lead into drinking water, particularly when water sits stagnant in the pipes.
The American Society of Civil Engineers has consistently graded America’s water infrastructure poorly — the 2025 Infrastructure Report Card gave drinking water a C- nationally. Cities like Macon, with older systems and limited tax bases, face some of the steepest challenges.
Lead Service Lines
Lead service lines are the connection between the water main in the street and the plumbing inside your home. In cities built before the 1950s — and Macon certainly qualifies — lead was a common material for these connections because it’s durable and easy to work with. We didn’t understand then what we know now about lead’s toxicity.
The EPA’s revised Lead and Copper Rule Improvements (LCRI), finalized in 2024, requires water systems to inventory all service line materials and replace lead service lines within a defined timeframe. Macon Water Authority has been conducting this inventory, which is a massive undertaking involving inspecting or researching the material composition of every service connection in the system.
MWA uses corrosion control treatment — adding orthophosphate or similar chemicals to the water — to reduce lead leaching from pipes. This creates a protective mineral coating inside lead pipes that limits contact between the water and the lead surface. Compliance testing under the Lead and Copper Rule has shown lead levels at consumer taps below the EPA action level of 15 ppb.
But here’s the thing: the EPA action level isn’t a safety standard. It’s an administrative trigger that tells the water system it needs to take action. The CDC and the American Academy of Pediatrics both state that there is no safe level of lead exposure for children. Even small amounts of lead can affect brain development, cause behavioral problems, and reduce IQ.
Homes in Macon’s older neighborhoods — Pleasant Hill, Vineville, Bellevue, Huguenin Heights, the Tattnall Square area — are most likely to have lead service lines and lead solder in their interior plumbing. If your home was built before 1986, it’s worth investigating.
Source Water Quality
Macon’s primary drinking water source is the Ocmulgee River, supplemented by groundwater wells drawing from the Cretaceous aquifer system.
The Ocmulgee River’s quality reflects conditions upstream, including:
- Agricultural runoff from the Georgia Piedmont region, carrying sediment, fertilizers, and pesticides
- Stormwater discharge from metro Atlanta, which is upstream in the Ocmulgee watershed
- Treated wastewater discharges from permitted facilities along the river
- Sediment loading that increases turbidity, particularly after heavy rains
Georgia’s Piedmont region receives significant rainfall — Macon averages about 45 inches annually — and rain events can dramatically affect raw water quality at the treatment plant intake.
MWA’s treatment plant uses conventional processes including coagulation, sedimentation, filtration, and chloramine disinfection. The utility switched from chlorine to chloramine (a combination of chlorine and ammonia) for secondary disinfection, which reduces the formation of some disinfection byproducts but introduces its own considerations.
Chloramine-treated water requires careful management of the chemical balance. If chloramine breaks down in the distribution system, it can release free ammonia, which promotes nitrification — bacterial growth that converts ammonia to nitrite. Nitrification episodes can cause water quality problems including taste and odor issues and interference with chloramine residual levels needed for disinfection.
Boil Water Advisories
Macon has experienced boil water advisories in recent years, typically triggered by water main breaks or pressure loss events. These advisories are precautionary — when system pressure drops below a certain threshold, there’s a risk that contaminants could enter the distribution system through cracks or joints in aging pipes.
While boil advisories are usually lifted within 24-48 hours after pressure is restored and bacteriological testing confirms safety, they’re disruptive and concerning for residents. They’re also a symptom of the underlying infrastructure problem.
The frequency of these events correlates directly with the condition of the distribution system. As pipes continue to age, the likelihood of failures increases. MWA has been working on systematic replacement and rehabilitation of the most vulnerable sections, but the scale of the need vastly exceeds available funding in any given year.
What the Data Shows
EPA compliance data for Macon Water Authority shows the system generally meeting primary drinking water standards. The utility’s annual Consumer Confidence Report details testing results for regulated contaminants.
Contaminants typically detected in Macon’s treated water include:
- Trihalomethanes and haloacetic acids — disinfection byproducts, detected at levels below EPA MCLs
- Total organic carbon — a precursor to disinfection byproduct formation
- Turbidity — managed through treatment but variable based on source water conditions
- Trace metals including barium, chromium, and fluoride — all below MCLs
The EWG Tap Water Database flags several contaminants detected above their health guidelines, consistent with typical findings for a surface water system using chloramine disinfection.
What Residents Can Do
Check your service line material. Contact MWA to find out whether your home’s service line is lead, copper, or galvanized steel. If they don’t know yet (the inventory is ongoing), ask about getting it inspected.
Flush your tap before use. If water has been sitting in your pipes for more than six hours, run the cold water tap for 30 seconds to 2 minutes before using it for drinking or cooking. This clears water that’s been in contact with your household plumbing.
Use cold water for cooking. Hot water dissolves more lead and other metals from pipes than cold water. If you need hot water, heat cold tap water on the stove or in a kettle.
Get your water tested. MWA may offer free lead testing kits, or you can send a sample to a certified laboratory. Georgia’s Environmental Protection Division maintains a list of certified labs.
Know your home’s plumbing. Homes built before 1986 may have lead solder connecting copper pipes. Homes built before the 1950s may have lead service lines. Even some brass fixtures and fittings contain lead.
Stay informed about infrastructure projects. MWA publishes information about ongoing main replacement and upgrade projects. Knowing when work is happening in your neighborhood helps you understand any temporary water quality changes.
Water Treatment Options
For lead: Point-of-use reverse osmosis systems or NSF/ANSI 53-certified carbon block filters effectively reduce lead at the tap. These are the most practical household solution, especially for drinking and cooking water.
For disinfection byproducts: Activated carbon filters — whether whole-house or point-of-use — reduce THMs and HAAs effectively.
For general water quality improvement: A multi-stage under-sink system combining sediment filtration, carbon filtration, and reverse osmosis addresses the broadest range of contaminants.
For taste and odor from chloramine: Catalytic carbon filters are specifically designed to reduce chloramine and its byproducts. Standard carbon filters are less effective at chloramine removal than they are at removing free chlorine.
Macon’s water challenges aren’t unique — hundreds of American cities are dealing with the same collision of aging infrastructure and limited budgets. But awareness is the first step. If you know what your pipes are made of, what’s in your water, and what treatment options exist, you can make informed decisions for your household.
If you’re concerned about your water quality, a certified water treatment professional can test your water and advise on solutions.