Watch Water Systems in South Carolina

124 community drinking-water systems in South Carolina currently rated Watch (MISI 21–40).

Systems in the Watch band (MISI 21–40) exhibit emerging stress indicators that warrant monitoring. One or more risk families may show moderate pressure — often early signs of capital deferral, revenue concentration, or demographic shifts affecting the customer base.

SystemPop. ServedMISIBand

GREENVILLE WATER SYSTEM (2310001)426K21.665Watch

COLUMBIA CITY OF (4010001)354K35.105Watch

CHARLESTON WATER SYSTEM (1010001)327K35.639Watch

GSW&SA (2620004)253K32.118Watch

SPARTANBURG WATER SYSTEM (4210001)166K34.754Watch

BJW&SA (0720003)165K35.058Watch

BCWSA/SANGAREE W/D (0820002)95K33.377Watch

MT PLEASANT WATER WORKS (1010002)92K33.082Watch

ROCK HILL CITY OF (4610002)90K31.336Watch

SJWD WATER DISTRICT (4220006)90K33.798Watch

SUMMERVILLE CPW (1810003)82K37.040Watch

FLORENCE CITY OF (2110001)80K27.823Watch

LANCASTER CO WATER (2920001)79K34.038Watch

GREER CPW (2310005)54K27.138Watch

SUMTER CITY OF (4310001)53K20.847Watch

DARLINGTON COUNTY W&SA (1620001)52K32.990Watch

GREENWOOD CPW (2410001)52K28.286Watch

AIKEN CITY OF (0210001)52K34.824Watch

MYRTLE BEACH CITY OF (2610001)49K33.992Watch

JOINT MUNICIPAL WSC (3220003)48K35.405Watch

LAURENS COUNTY W&S COMM (3020001)45K30.085Watch

N MYRTLE BEACH CITY OF (2610011)44K31.076Watch

GOOSE CREEK CITY OF (0810004)44K35.639Watch

GCWSD/WACCAMAW NECK (2220010)41K34.573Watch

INMAN-CAMPOBELLO W/D (4220002)41K22.265Watch

DCWA/KNIGHTSVILLE (1820001)40K27.300Watch

BLUE RIDGE WATER CO INC (2320003)40K22.643Watch

SENECA CITY OF (3710002)40K28.335Watch

EASLEY COMBINED UTIL (3910002)36K29.084Watch

POWDERSVILLE WATER DISTRICT (0420002)35K22.893Watch

WEST COLUMBIA CITY OF (3210004)34K38.169Watch

WOODRUFF ROEBUCK W/D (4220007)32K34.649Watch

FORT JACKSON (4010501)31K29.097Watch

YORK CO/EAST (4620002)30K34.550Watch

CONWAY CITY OF (2610008)27K22.626Watch

DCPW/ASHLEY PHOSPHATE (1820008)27K37.247Watch

NORTH AUGUSTA CITY OF (0210003)26K26.813Watch

LUGOFF ELGIN WATER AUTH (2820001)26K31.050Watch

HILTON HEAD PSD 1 (0720006)26K35.639Watch

FORT MILL TOWN OF (4610003)25K30.794Watch

GAFFNEY BPW (1110001)24K31.050Watch

LEXINGTON TOWN OF (3210001)24K30.641Watch

ST JOHN'S WATER (1020002)23K35.639Watch

CAMDEN CITY OF (2810001)19K38.694Watch

SOUTH ISLAND PSD (0720001)18K23.637Watch

TRICO WATER COMPANY (1720001)18K20.292Watch

CLEMSON TOWN OF (3910004)18K20.990Watch

CAYCE CITY OF (3210003)17K24.167Watch

WEST ANDERSON W/D (0420006)17K27.297Watch

SANDY SPRINGS WATER CO INC (0420003)17K24.776Watch

BUCKSPORT WATER COMPANY (2620003)17K25.082Watch

MARCO RURAL WATER CO (3320001)17K32.243Watch

WALHALLA CITY OF (3710004)16K21.299Watch

CHESTER METRO (1220002)16K32.324Watch

SIX MILE W/D (3920002)15K21.965Watch

LANCASTER CITY OF (2910001)14K21.073Watch

LAURENS CPW (3010001)14K30.085Watch

BIG CREEK W/S DISTRICT (0420009)14K23.844Watch

UNION CITY OF (4410001)13K35.645Watch

BCWSA - EAST COOPER (0820009)13K29.129Watch

CONWAY RURAL (2620001)13K39.793Watch

HIGH HILLS (4320003)13K28.118Watch

YORK CITY OF (4610001)11K35.413Watch

STARR-IVA W/D (0420005)11K26.841Watch

OCEAN LAKES LTD (2660048)11K24.626Watch

GILBERT-SUMMIT W/D (3220001)10K32.641Watch

PICKENS WTP (3910001)10K35.013Watch

NEWBERRY CITY OF (3610001)10K31.050Watch

WESTMINSTER CITY OF (3710003)10K38.466Watch

KIAWAH ISLAND UTILITY (1010008)10K21.637Watch

ISLE OF PALMS W/S COMM (1010004)10K35.677Watch

LAKE CITY CITY OF (2110007)9K29.729Watch

BENNETTSVILLE CITY OF (3410001)9K28.913Watch

GSWSA - MARION CITY OF (3310001)9K20.292Watch

GEORGETOWN CITY OF (2210001)9K28.598Watch

MONCKS CORNER CITY OF (0810001)9K21.637Watch

CLINTON CITY OF (3010002)9K32.849Watch

HARTSVILLE CITY OF (1610003)9K21.457Watch

MCCORMICK CO WATER AUTH (3520002)9K21.065Watch

CLOVER TOWN OF (4610006)8K20.843Watch

CLEMSON UNIVERSITY (3910006)8K25.031Watch

VALLEY PSA (0220012)8K22.818Watch

GASTON RURAL WATER DIST (3220002)8K27.911Watch

MEANSVILLE RILEY W/D (4420001)7K31.361Watch

MULLINS CITY OF (3310002)7K20.292Watch

CWS/I-20 (3250012)7K32.161Watch

DARLINGTON CITY OF (1610001)7K39.425Watch

WILLIAMSBURG COUNTY W&S (4510007)7K28.485Watch

DILLON CITY OF (1710001)7K31.530Watch

BATESBURG LEESVILLE DPW (3210002)7K39.531Watch

BELTON CITY OF (0410004)7K27.297Watch

WILLIAMSTON TOWN OF (0410010)7K25.031Watch

CHERAW TOWN OF (1310001)6K34.238Watch

KINGSTREE TOWN OF (4510002)6K20.013Watch

SEABROOK ISLAND TOWN OF (1010009)6K30.087Watch

MANNING TOWN OF (1410002)6K25.232Watch

EDISTO BEACH TOWN OF (1510006)6K33.999Watch

DANIEL MORGAN WATER DISTRICT (1120001)6K22.977Watch

ABBEVILLE CITY OF (0110001)6K25.385Watch

DRAYTONVILLE WATER DIST (1120003)5K21.001Watch

DONALDS-DUE WEST W/A (0120001)5K35.635Watch

SWS LANDRUM WTP (4210003)5K26.306Watch

FOLLY BEACH CITY OF (1010005)5K37.247Watch

JOHNSONVILLE CITY OF (2110011)5K34.939Watch

GEORGETOWN RURAL COMM WA (2220001)5K32.118Watch

ALLIGATOR RURAL WATER (1320004)5K33.014Watch

BARNWELL TOWN OF (0610001)5K21.972Watch

BLACKSBURG TOWN OF (1110002)4K32.658Watch

GCWSD/KILSOCK WATER SYS (2220002)4K24.626Watch

LAKEWOOD CAMPGROUND (2660049)4K32.620Watch

HONEA PATH TOWN OF (0410003)4K29.067Watch

KEOWEE KEY UTILITY SYSTEM INC (3750023)4K22.078Watch

ALLENDALE TOWN OF (0310001)4K26.018Watch

BISHOPVILLE TOWN OF (3110001)4K26.858Watch

BAMBERG-PUBLIC WORKS (0510001)4K34.856Watch

JACKSON TOWN OF (0210002)4K26.357Watch

FRIPP ISLAND PSD (0720002)4K29.631Watch

MIDCOUNTY WATER DIST 2 (2020004)4K24.738Watch

DENMARK TOWN OF (0510002)4K21.820Watch

CENTRAL TOWN OF (3910005)3K25.232Watch

BROAD CREEK PSD (0720009)3K35.639Watch

HAMPTON TOWN OF (2510001)3K20.490Watch

CWS/RIVER HILLS S/D (4650006)020.843Watch

UUC - TEGA CAY WATER SERVICE INC024.796Watch