Water Quality Report · Updated October 07, 2026
CITY OF GULFPORT
CITY OF GULFPORT delivers tap water graded A (88/100) by TapWaterSafety.org. The utility serves approximately 75,056 residents in GULFPORT, Mississippi using groundwater. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Arsenic detected. For questions, the utility can be reached at 228-868-5740.
Is GULFPORT tap water safe to drink?
CITY OF GULFPORT delivers tap water that earns a grade of A (88/100) from TapWaterSafety.org — an excellent rating reflecting minimal contamination and full compliance with health guidelines.
The utility serves 75,056 residents in GULFPORT, drawing from groundwater.
Public testing data identifies 5 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Haloacetic acids (HAA5), Arsenic, Radium, combined (-226 and -228). For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
EPA compliance record
Official U.S. EPA records for CITY OF GULFPORT (system ID MS0240003) for the last 3 years. Checked 2026-10-07.
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Quick actions for GULFPORT residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for CITY OF GULFPORT.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 8.35 ppb, 139x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 14.1 ppb, 94x above the EWG health guideline of 0.15 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 5.66 ppb, 57x above the EWG health guideline of 0.1 ppb.
Arsenic detected
Moderate concernArsenic detected at 0.15 ppb.
Contact CITY OF GULFPORT
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for GULFPORT
Filters matched to the specific contaminants in this water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 88/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). 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 |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
8.35 ppb | 0.06 | — | — | — | — | — | 139× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
14.1 ppb | 0.15 | 80.0 | 100 | — | — | — | 94× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
5.66 ppb | 0.1 | 60.0 | 60 | — | — | — | 57× over |
| Arsenic Heavy metal |
0.15 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 38× over |
| Radium, combined (-226 and -228) Radiological |
0.56 pCi/L | 0.05 | 5.0 | — | — | — | — | 11× over |
| Bromochloromethane Other |
0.026 ppb | 0.06 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
20.7 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Nitrate Inorganic |
0.00238 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Nitrate and nitrite Inorganic |
0.00238 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Barium Heavy metal |
8.27 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Vanadium Other |
0.0308 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Xylenes (total) Volatile organic compound |
0.539 ppb | 1800.0 | 10000.0 | — | — | — | — | Below guideline |
| Ethylbenzene Volatile organic compound |
0.0736 ppb | 300.0 | 700.0 | 1 | 10 | 0.15 | — | Below guideline |
| Strontium Radiological |
0.0173 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
0.239 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.258 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
1.15 ppb | — | — | — | — | — | — | Below guideline |
| Nitrite Inorganic |
0.00274 ppm | — | 1.0 | — | — | — | — | 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
CITY OF GULFPORT service area
This water system serves 1 community in Harrison County, Mississippi. Click any city for its dedicated tap water quality page.
Find the right filter for GULFPORT water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.