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South Carolina Water Quality
1,390 public water systems serving 4,709,324 people.
Water Systems
1,390
Total Violations
38,355
Violation Rate
65.3%
PFAS Detection
65.2%
107 of 164 tested
Largest Water Systems
GREENVILLE WATER (2310001)
GREENVILLE, SC · 396,265 served
CHARLESTON WATER SYSTEM (SC1010001)
CHARLESTON, SC · 327,422 served
COLUMBIA CITY OF (SC4010001)
COLUMBIA, SC · 319,500 served
GSW&SA (SC2620004)
CONWAY, SC · 247,550 served
BJW&SA (0720003)
OKATIE, SC · 145,634 served
SPARTANBURG WATER SYSTEM (4210001)
SPARTANBURG, SC · 140,024 served
BCWSA SANGAREE W/D (0820002)
MONCKS CORNER, SC · 95,345 served
MT PLEASANT WATER WORKS (1010002)
MOUNT PLEASANT, SC · 91,500 served
SJWD MIDDLE TYGER WTP (4220006)
LYMAN, SC · 87,259 served
ROCK HILL CITY OF (SC4610002)
ROCK HILL, SC · 82,846 served
SUMMERVILLE CPW (SC1810003)
SUMMERVILLE, SC · 81,750 served
FLORENCE CITY OF (SC2110001)
FLORENCE, SC · 79,745 served
LANCASTER COUNTY W&SD (SC2920001)
LANCASTER, SC · 79,107 served
GREER CPW (SC2310005)
GREER, SC · 53,602 served
SUMTER CITY OF (SC4310001)
SUMTER, SC · 53,070 served
DARLINGTON COUNTY W&SA (SC1620001)
DARLINGTON, SC · 52,288 served
MYRTLE BEACH CITY OF (SC2610001)
MYRTLE BEACH, SC · 50,930 served
GREENWOOD CPW (2410001)
GREENWOOD, SC · 49,632 served
JOINT MUNICIPAL WSC (SC3220003)
LEXINGTON, SC · 47,838 served
ORANGEBURG DPU (SC3810001)
ORANGEBURG, SC · 46,896 served
Most Violations
#1 BGWC CHARLESWOOD S/D (4050008) ELGIN
1,678 #2 BGWC PURDY SHORES (0150014) ELGIN
780 #3 BGWC LEXINGTON ESTATES (SC3250050) ELGIN
780 #4 BGWC SHILOH QUARTERS (SC4660092) ELGIN
715 #5 BGWC LAKEWOOD (SC0450065) ELGIN
475 #6 BGWC FARROWWOOD ESTATES (SC4050012) ELGIN
468 #7 BGWC OAKRIDGE HUNT CLUB (SC4050019) ELGIN
467 #8 BGWC MIDDLESTREAM (SC4650052) ELGIN
464 #9 BGWC LESSLIEDALE (SC4660095) ELGIN
464 #10 BGWC WASHINGTON HEIGHTS (SC4050013) ELGIN
461 #11 BGWC LEXINGTON FARMS (SC3250069) ELGIN
460 #12 BGWC SPRINGFIELD ACRES (SC4050006) ELGIN
456 #13 BGWC HARMON HILL ESTATES (SC4050011) ELGIN
456 #14 BGWC OAKLAND PLANTATION (SC4350006) ELGIN
434 #15 BGWC SILVER LAKES-WINDWOOD (SC4650034) ELGIN
424 Counties in South Carolina
Greenville
45 systems · 498,460 served
· 567 violations
Charleston
74 systems · 480,067 served
· 846 violations
Horry
53 systems · 416,612 served
· 307 violations
Richland
77 systems · 361,654 served
· 5,612 violations
Spartanburg
29 systems · 318,077 served
· 154 violations
Anderson
40 systems · 206,616 served
· 1,334 violations
Beaufort
45 systems · 203,764 served
· 537 violations
York
137 systems · 202,935 served
· 8,274 violations
Lexington
135 systems · 176,237 served
· 6,415 violations
Dorchester
56 systems · 164,012 served
· 369 violations
Berkeley
63 systems · 162,162 served
· 576 violations
Aiken
63 systems · 153,654 served
· 1,188 violations
Pickens
46 systems · 133,635 served
· 545 violations
Florence
24 systems · 101,758 served
· 194 violations
Oconee
56 systems · 99,852 served
· 837 violations
Lancaster
8 systems · 96,836 served
· 231 violations
Sumter
24 systems · 84,388 served
· 1,103 violations
Kershaw
11 systems · 71,420 served
· 235 violations
Georgetown
24 systems · 70,899 served
· 318 violations
Darlington
6 systems · 69,227 served
· 155 violations
Orangeburg
33 systems · 65,626 served
· 530 violations
Laurens
11 systems · 59,423 served
· 335 violations
Greenwood
17 systems · 56,330 served
· 265 violations
Cherokee
8 systems · 54,307 served
· 164 violations
Chesterfield
12 systems · 44,401 served
· 373 violations
Marion
6 systems · 34,320 served
· 69 violations
Union
9 systems · 30,650 served
· 356 violations
Edgefield
9 systems · 29,621 served
· 113 violations
Dillon
6 systems · 28,656 served
· 51 violations
Newberry
13 systems · 23,393 served
· 562 violations
Showing top 30 of 46 counties.