Water Quality Report · Updated May 12, 2026
SOUTH BLOUNT UTILITY DISTRICT
SOUTH BLOUNT UTILITY DISTRICT delivers tap water graded D (63/100) by TapWaterSafety.org. The utility serves approximately 53,864 residents in MARYVILLE, Tennessee using surface water. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Trichloroacetic acid significantly above health guideline. For questions, the utility can be reached at 865-982-3560.
Is MARYVILLE tap water safe to drink?
SOUTH BLOUNT UTILITY DISTRICT delivers tap water that earns a grade of D (63/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including haloacetic acids (haa9) significantly above health guideline.
The utility serves 53,864 residents in MARYVILLE, drawing from surface water.
Public testing data identifies 9 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Haloacetic acids (HAA5), Trichloroacetic acid, Total trihalomethanes (TTHMs), Chloroform, Dichloroacetic acid, Bromodichloromethane, Chromium (hexavalent), Chlorate. 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.
Quick actions for MARYVILLE residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for SOUTH BLOUNT UTILITY DISTRICT.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 52.6 ppb, 876x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 45.9 ppb, 459x above the EWG health guideline of 0.1 ppb.
Trichloroacetic acid significantly above health guideline
Moderate concernTrichloroacetic acid detected at 28.5 ppb, 285x above the EWG health guideline of 0.1 ppb.
Contact SOUTH BLOUNT UTILITY DISTRICT
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 MARYVILLE
Filters matched to the specific contaminants in this water supply.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
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 63/100 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 |
52.6 ppb | 0.06 | — | — | — | — | — | 876× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
45.9 ppb | 0.1 | 60.0 | 60 | — | — | — | 459× over |
| Trichloroacetic acid Disinfection byproduct |
28.5 ppb | 0.1 | — | — | — | — | — | 285× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
40.0 ppb | 0.15 | 80.0 | 100 | — | — | — | 266× over |
| Chloroform Disinfection byproduct |
35.3 ppb | 0.4 | — | — | — | — | — | 88× over |
| Dichloroacetic acid Disinfection byproduct |
16.6 ppb | 0.2 | — | — | — | — | — | 83× over |
| Bromodichloromethane Disinfection byproduct |
3.22 ppb | 0.06 | — | — | — | — | — | 54× over |
| Chromium (hexavalent) Heavy metal |
0.239 ppb | 0.02 | — | — | — | — | — | 12× over |
| Chlorate Disinfection byproduct |
302.5 ppb | 210.0 | — | — | — | — | — | 1.4× over |
| Nitrate Inorganic |
0.136 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Manganese Heavy metal |
9.97 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.933 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
0.1 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0204 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chlorodifluoromethane Other |
0.06 ppb | — | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.348 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
SOUTH BLOUNT UTILITY DISTRICT service area
This water system serves 1 community in Blount County, Tennessee. Click any city for its dedicated tap water quality page.
Find the right filter for MARYVILLE water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.