Is Mayo, SC tap water safe?
The short answer
2 of the 4 utilities serving Mayo have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and South Carolina’s records: Spartanburg Water System and Daniel Morgan Water District.
Lcf Water District, which serves the most people here, has nothing above a health goal in EPA’s and South Carolina’s records. That data covers what its report lists, not everything.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Mayo’s ZIP codes, from EPA’s estimates.
- Open report
Lcf Water District
South Carolina · serves 18,152 people · about 360 in Mayo
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
Spartanburg Water System
South Carolina · serves 166,364 people · about 240 in Mayo
Nothing in its records is above a health goal.
2 health-based violations since 2016
- Open report
Daniel Morgan Water District
South Carolina · serves 5,746 people · under 100 in Mayo
1 result above the legal limit and 2 results above EPA’s new limit, which takes effect in 2029. The worst: Haloacetic acids (HAA5) at 46.6 ppb, above the legal limit.
2 health-based violations since 2016
- Open report
Goucher WD
South Carolina · serves 5,426 people · under 100 in Mayo
2 results above EPA’s new limit, which takes effect in 2029. The worst: PFOS at 17 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
Water testing near Mayo
The 3 labs South Carolina certifies closest to Mayo, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Alliance Technical Group LLC - Greenville
Greenville, SC · about 34 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
L&L Environmental Ware Shoals
Ware Shoals, SC · about 53 miles
Certified for bacteria
EMSL Analytical Inc. - Charlotte
Pineville, NC · about 54 miles
Certified for bacteria
Which ZIP codes are in Mayo: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: SCDES, Commercial Environmental Laboratory Mapping (CELMapp), labs certified under the Safe Drinking Water Act; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Mayo
Towns nearby with a page of their own.
What to do next
- Read Lcf Water District’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Decide if you want a filter at allA filter for taste or chlorine is a preference, not a need. The standards say what each kind can do.NSF/ANSI standards, decoded
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water