County drinking water records

Jefferson County, MO drinking water systems

52 community water systems serve Jefferson County, MO, reporting 177,904 people served in all. A system that also serves other counties counts all of its customers here.

9 of them (17%) had at least one health-based violation in the last 10 years. 11 systems still have one unresolved.

45 rely mainly on groundwater and 7 on surface water, counting water bought from other systems.

48 systems filed a lead service line inventory listing 3 lead lines, 30 galvanized lines that must be replaced and 19,777 lines of unknown material.

18 more systems are placed in Jefferson County, MO by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems
52
People served, sum of each system's own figure
177,904
Systems with a health-based violation, last 10 years
9
Systems with one unresolved
11
Lead service lines in inventories
3

Water systems serving Jefferson County

52 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Jefferson Co Cons PWSD C 1 Barnhart, Imperial and 1 more and land outside them 37,000 Purchased surface water 0 0 0
Jefferson County PWSD 1 Arnold 21,113 Purchased surface water 0 0 0
Jefferson County PWSD 3 Murphy and land outside it 17,000 Purchased surface water 0 0 0
Jefferson County PWSD 2 High Ridge, Murphy and 3 more and land outside them 16,548 Surface water 0 0 0
Festus PWS Festus and Herculaneum 12,054 GUP 0 0 2
Jefferson County PWSD 10 Imperial, Arnold and 1 more 10,000 Purchased surface water 0 0 0
Jefferson County PWSD 5 Olympian Village and land outside it 8,000 Groundwater 0 0 0
Jefferson County PWSD 6 Byrnes Mill and Scotsdale and land outside them 7,500 Groundwater 0 0 0
Desoto PWS De Soto 6,400 Groundwater 0 0 0
Jefferson County PWSD 7 Pevely, Herculaneum and 1 more and land outside them 6,100 Groundwater 0 0 0
Pevely PWS Pevely 5,600 Groundwater 0 0 0
Crystal City PWS Crystal City 4,733 Groundwater 3 0 0
Jefferson Co PWSD 8 Cedar Hill and land outside it 4,733 Groundwater 0 0 0
Herculaneum PWS Herculaneum and Crystal City 4,227 GUP 0 0 0
Jefferson County PWSD 12 Crystal City and land outside it 3,300 Groundwater 0 0 0
Hillsboro PWS Hillsboro 3,000 Groundwater 1 0 0
Raintree Plantation Raintree Plantation 2,200 Groundwater 0 0 0
Mirasol Subdivision Outside cities and towns 2,012 Groundwater 0 0 0
JCPSD Summer Set Summer Set and Wildwood 1,080 Groundwater 1 0 0
Valle Lake Subd Outside cities and towns 625 Groundwater 0 0 0
Cedar Hill Estates Water Cedar Hill 490 Groundwater 0 0 0
Lakewood Hills Subd LaBarque Creek 400 Groundwater 0 0 0
Sunrise Lakes Subd Outside cities and towns 400 Groundwater 0 1 0
Lake Adelle Subd Outside cities and towns 380 Groundwater 0 1 0
Hunters Glen Pevely 240 Groundwater 0 1 0
Lake Lorraine Water Co Outside cities and towns 230 Groundwater 0 0 0
Briarwood Utilities Briarwood Estates 210 Groundwater 0 1 No inventory
Sycamore Springs Outside cities and towns 200 Groundwater 0 0 0
Mackenzie Ridge LLC Outside cities and towns 180 Groundwater 0 0 0
High Ridge Manor Subd Parkdale 175 Groundwater 0 0 0
Crestview Acres Subd Outside cities and towns 150 Groundwater 0 0 0
Fairways Water and Sewer Assn Outside cities and towns 150 Groundwater 0 0 0
Lakeside Manor Outside cities and towns 150 Groundwater 0 0 0
Palisades Village Outside cities and towns 142 Groundwater 2 4 No inventory
Laurel Acres MHP Outside cities and towns 124 Groundwater 1 1 0
Frontier Estates Murphy and Manchester 120 Groundwater 2 0 0
Ware Lake Subd Outside cities and towns 100 Groundwater 0 1 No inventory
Manderly MHP Outside cities and towns 100 Groundwater 0 0 0
Weber Hill MHP Outside cities and towns 80 Groundwater 3 2 No inventory
Baisch Nursing Center Outside cities and towns 80 Groundwater 0 0 0
South Shore Water Assn Lake Tekakwitha 75 Groundwater 0 0 0
Fennec Fox Way LLC Outside cities and towns 70 Groundwater 0 1 0
Lakehurst MHP Outside cities and towns 70 Groundwater 0 0 0
Cedar Hill Lakes Village Cedar Hill Lakes 65 Groundwater 2 0 0
Liberty Utilities Warren Woods Subd Byrnes Mill 60 Groundwater 0 0 0
Block Six Water Assn Lake Tekakwitha 50 Groundwater 0 0 0
Sycamore Green Acres MHP Outside cities and towns 50 Groundwater 0 0 0
Meadow Drive Subd Murphy 42 Groundwater 0 0 0
Walker Hill MHP Outside cities and towns 30 Groundwater 0 0 0
Country Aire Estates Outside cities and towns 30 Groundwater 0 0 0
Ficken Hill Subd Outside cities and towns 25 Groundwater 2 1 0
Valle Acres MHP Outside cities and towns 11 Groundwater 0 1 1

Systems placed by county record in Jefferson County

18 systems

EPA has no service area map for some of these systems, and the maps it has for the others do not line up with their own records. They are placed by the county their records name (the counties EPA lists them serving, or the county coded in their IDs where EPA lists none), and without a map they are not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Sugar Creek Estates MHP County on record 500 Purchased surface water 0 0 0
Quail Run of Imperial County on record 370 Purchased surface water 0 1 0
Starling MHP County on record 342 Purchased surface water 0 0 0
Jeffco MHP County on record 310 Purchased surface water 0 1 0
Greenfield Manor MHP County on record 307 Purchased surface water 0 0 0
Seven Spring Sewer & Water LLC County on record 300 Groundwater 0 1 No inventory
Antire Valley Subd County on record 260 Groundwater 2 0 0
Ozark Hills MHP County on record 230 Purchased surface water 0 0 0
Scotsdale Subd County on record 120 Groundwater 0 0 0
Paradise Estates MHP County on record 58 Groundwater 1 1 0
Leonards MHP County on record 48 Groundwater 1 1 0
House Springs Apt County on record 48 Groundwater 0 0 0
Crystal Cove MHP County on record 40 Groundwater 0 0 0
Pine Ford Village MHP County on record 40 Groundwater 0 0 0
Lynn Acres MHP County on record 27 Purchased groundwater 0 1 0
Villas at Fox Run County on record 25 Groundwater 0 0 No inventory
Jefferson County Water Authority County on record 25 Groundwater under direct influence 0 0 0
Big Valley Court County on record 23 Groundwater 1 0 0

Cities and towns in Jefferson County

25 places

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Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations