Tap Water Quality Report
Tap water quality in OLIVE BRANCH, Mississippi
Tap water in OLIVE BRANCH, Mississippi receives a grade of B (87/100) from TapWaterSafety.org. It's served by CITY OF OLIVE BRANCH. The most significant water quality concerns are: Radium, combined (-226 and -228) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in OLIVE BRANCH's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving OLIVE BRANCH.
Radium, combined (-226 and -228) significantly above health guideline
Moderate concernRadium, combined (-226 and -228) detected at 1.68 pCi/L, 34x above the EWG health guideline of 0.05 pCi/L.
EPA compliance record
Official U.S. EPA records for CITY OF OLIVE BRANCH (system ID MS0170015) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Stage 2 Disinfectants and Disinfection Byproducts Rule | Missed testing or reporting | 01/01/2024 | Open |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Recommended filters for OLIVE BRANCH
Filters matched to the specific contaminants in OLIVE BRANCH's water supply.
Reverse osmosis certified for radium (NSF/ANSI 58)
$429-$750RO certified for radium 226/228 reduces it; ion-exchange water softeners also reduce radium.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in OLIVE BRANCH's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Radium, combined (-226 and -228) Radiological |
1.68 pCi/L | 0.05 | 5.0 | — | — | — | — | 34× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
1.25 ppb | 0.15 | 80.0 | 100 | — | — | — | 8.3× over |
| Nitrate Inorganic |
0.407 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.9× over |
| Nitrate and nitrite Inorganic |
0.407 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.9× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
0.15 ppb | 0.06 | — | — | — | — | — | 2.5× over |
| Chromium (hexavalent) Heavy metal |
0.0441 ppb | 0.02 | — | — | — | — | — | 2.2× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
0.17 ppb | 0.1 | 60.0 | 60 | — | — | — | 1.7× over |
| Chlorate Disinfection byproduct |
82.3 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
22.7 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Manganese Heavy metal |
1.57 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Strontium Radiological |
0.0129 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
0.127 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.498 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from CITY OF OLIVE BRANCH.