What's in Shreveport's Water? Long-Term Contamination Record
The March 2026 boil advisory was a major recent event in Shreveport water operations. Even before this crisis, Shreveport's water supply had documented issues with multiple contaminants above health guidelines. The water is drawn from the Red River and treated at Shreveport's water treatment facility.
According to EWG's Tap Water Database (utility ID: LA1017031), the Shreveport Water System has detected multiple contaminants at levels exceeding EWG's health guidelines, even when the water technically meets EPA legal limits. Here's what residents should know:
⚠️ Disinfection Byproducts (HAAs & THMs)
Haloacetic acids and trihalomethanes form when chlorine reacts with organic matter in Red River water. These have been detected at levels exceeding EWG health guidelines. Long-term exposure is associated in some studies with increased bladder-cancer risk and adverse pregnancy outcomes.
Removed by: certified reverse osmosis systems
🟤 Manganese (Historic Spike)
In June 2024, Shreveport's manganese levels reached 1.29 mg/L — more than 10 times the EPA's aesthetic guideline of 0.05 mg/L — causing widespread brown water discoloration across the city. Manganese at elevated levels is linked to neurological effects, particularly in children.
Removed by: Reverse osmosis, manganese-specific filters
🧪 PFAS Contamination
PFAS (per- and polyfluoroalkyl substances) have been detected in areas around Shreveport. Industrial sources in northwest Louisiana and historic use of AFFF fire-fighting foam at nearby facilities contribute to PFAS concerns. The EPA set new enforceable PFAS limits in 2024.
Removed by: certified reverse osmosis systems, some activated carbon systems
🦠 Microbiological Risk (During Pressure-Loss Advisories)
The March 2026 advisory followed a transmission main break that caused system-wide pressure loss. Coliform bacteria can enter the distribution system when pressure drops. This type of contamination is not visible, has no taste or odor, and can cause serious gastrointestinal illness.
Removed by: Boiling, RO with UV, ceramic filters rated NSF P231
⚙️ Aging Infrastructure
State inspections have identified aging water storage tanks, emergency generator deficiencies, and widespread distribution system problems in Shreveport. The city's water infrastructure is decades old in many areas. An ozone treatment system failure in 2024 required emergency use of higher chlorine doses, increasing disinfection byproduct risk.
Ongoing issue: State-ordered infrastructure improvements underway
🔵 Chlorine & Chloramines
Residual chlorine and chloramines are added to disinfect Shreveport's Red River water. While necessary for safety, they create a chemical taste and odor and serve as the precursors to the disinfection byproducts that are a primary concern in the Shreveport system.
Removed by: Activated carbon filters, RO systems
Why Shreveport's Infrastructure Problems Keep Happening
Shreveport's water woes are not isolated incidents — they reflect a systemic infrastructure crisis that's decades in the making. The city's water and sewerage system was largely built in the mid-20th century and has seen insufficient reinvestment. Key issues include:
- • Aging transmission mains: Large-diameter pipes that carry treated water across the city are aging and increasingly prone to failures. The March 2026 break is one of several in recent years.
- • State oversight: Louisiana's Department of Health has issued orders requiring Shreveport to make specific infrastructure improvements — a sign that the problems are serious enough to require regulatory intervention.
- • Treatment system reliability: The 2024 ozone system failure forced operators to rely on higher chlorine doses, which increased the formation of disinfection byproducts in the distribution system.
- • Pressure zone complexity: Shreveport divides its system into pressure zones (West, Central, East). Problems in one zone can cascade across the system, as happened in March 2026.
Bottom line: Even when the current boil advisory is lifted, Shreveport's long-term water quality challenges make a home filtration system worth considering for residents with verified concerns.
Health Risks: Who Should Be Most Concerned?
Boil-water advisories and Shreveport's documented water quality history create higher concern for certain groups:
👶 Infants & Young Children
Most vulnerable to coliform bacteria, lead, nitrates, and manganese. Do NOT use unfiltered tap water for formula during advisories.
🤰 Pregnant Women
Elevated disinfection byproducts (HAAs/THMs) are linked to adverse pregnancy outcomes. RO filtration is recommended as a long-term measure.
👴 Elderly & Immunocompromised
Reduced ability to fight waterborne pathogens. During the boil advisory, extra caution is essential — boil or use bottled water.
🏠 Residents of Older Homes
Homes built before 1986 may have lead solder or lead service lines that can leach lead into water — a separate concern from the current advisory.
Best Water Filters for Shreveport Residents
Given Shreveport's advisory history and documented long-term water quality concerns, here's what actually protects you:
⚠️ Important: During any active boil water advisory, standard pitcher filters (Brita, PUR, ZeroWater) do NOT remove bacteria or viruses. You must boil water OR use a filter specifically rated for microbiological removal (RO systems with UV, or NSF P231/P248 rated filters).
Recommended Filtration Solutions
APEC ROES-50 RO System
5-stage reverse osmosis. May reduce listed contaminants only when the exact system is certified and maintained for those uses, disinfection byproducts, and a broad range of contaminants when certified and maintained. NSF/ANSI 58 certified. Under-sink installation. ~$200.
- ✅ Bacteria & virus removal
- ✅ PFAS reduction when certified for the relevant compounds
- ✅ Manganese removal
- ✅ DBP removal
iSpring RCC7AK
6-stage RO with alkaline remineralization. Adds back healthy minerals for better taste after removing contaminants. NSF/ANSI 58 certified. 75 GPD. ~$250.
- ✅ RO-based reduction support
- ✅ Alkaline stage improves taste
- ✅ NSF certified
- ✅ Good capacity for families
Aquasana Whole House Filter
Whole-house carbon + KDF filtration. Removes chlorine, DBPs, and VOCs from every tap and shower. Best for families concerned about bathing exposure to chlorine byproducts. ~$800–$1,100.
- ✅ Protects every faucet
- ✅ Reduces DBPs in shower steam
- ✅ 10-year/1M gallon filter life
- ⚠️ Add RO for drinking water
Emergency Solutions During Active Boil Advisories
Sawyer Squeeze Filter
0.1-micron hollow fiber membrane. Removes 99.99999% of bacteria and 99.9999% of protozoa. NSF rated. Can filter directly into a pitcher. Inexpensive at ~$35.
View on Amazon →LifeStraw Home Pitcher
Removes bacteria, parasites, and microplastics. NSF P231 rated. A portable pitcher with true microbiological protection — unlike Brita. ~$60.
View on Amazon →How to Check Shreveport Water Quality Yourself
1. EWG Tap Water Database
Search the Shreveport Water System (utility ID: LA1017031) at ewg.org/tapwater to see all detected contaminants and how they compare to health guidelines vs. EPA legal limits. Our full guide: EWG Tap Water Database Explained →
2. City of Shreveport Water Quality Reports
The City is required to publish an annual Consumer Confidence Report. Find it at shreveportla.gov under Water & Sewerage.
3. Home Water Testing Kit
For the most accurate picture of what's coming out of your specific tap, use a lab-certified home test kit. This is especially useful for testing lead (from your own plumbing) or PFAS levels. See our best water test kit picks →
Frequently Asked Questions
Is the Shreveport boil water advisory mandatory or voluntary?
The March 2026 advisory is described as a "voluntary" boil advisory, which means the City is recommending residents boil water as a precautionary measure. However, "voluntary" is a legal term — the precautionary action is the same. Treat it as if it were mandatory for drinking, cooking, and oral hygiene.
Can I shower during a boil water advisory?
Yes, showering and bathing are generally considered safe during a boil water advisory for healthy adults. Avoid swallowing water. For infants and young children, use extra caution. People with open wounds should use extra care or use boiled/bottled water for wound care.
Does my Brita filter protect me during the advisory?
No. Standard Brita pitcher filters (Standard and Longlast+ models) are not rated to remove bacteria or viruses. During a boil water advisory, you must still boil water even if you run it through a Brita first. Only RO systems, UV treatment, or specialty filters rated NSF P231 can substitute for boiling.
How long will the boil advisory last?
The advisory will be lifted once the Louisiana Department of Health collects and analyzes water samples confirming the absence of coliform bacteria. This process typically takes 24-72 hours once water pressure is fully restored. The City of Shreveport will announce when the advisory is lifted. Follow shreveportla.gov for updates.
Is Shreveport's water safe long-term, beyond the advisory?
Shreveport water has documented long-term quality concerns separate from the current advisory — including elevated disinfection byproducts, a 2024 manganese spike, and PFAS contamination in the area. Even after the advisory is lifted, a reverse osmosis system is a worthwhile investment for Shreveport residents who want comprehensive protection. Learn more about what your water contains at the EWG Tap Water Database.