Tap Truth EPA drinking water records, in plain English

County drinking water records

Natrona County, WY drinking water systems

18 community water systems serve Natrona County, WY, reporting 74,939 people served in all.

4 of them (22%) had at least one health-based violation in the last 10 years. 4 systems still have one unresolved.

2 rely mainly on groundwater and 16 on surface water, counting water bought from other systems.

Their lead service line inventories list 146 lead lines, 0 galvanized lines that must be replaced and 2,999 lines of unknown material.

7 more systems are placed in Natrona County, WY 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
18
People served, sum of each system's own figure
74,939
Systems with a health-based violation, last 10 years
4
Systems with one unresolved
4
Lead service lines in inventories
146

Water systems serving Natrona County

18 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
City of Casper Casper 59,000 Purchased surface water 0 0 146
City of Mills Mills 4,050 Groundwater under direct influence 3 0 0
Town of Bar Nunn Bar Nunn, Hartrandt and 1 more 4,000 Purchased surface water 0 0 0
Town of Evansville Evansville and Brookhurst 2,728 Surface water 0 0 0
Vista West Water Company Vista West, Mountain View and 1 more 1,600 Purchased surface water 0 0 0
Pioneer Water & Sewer District Vista West and Mills and land outside them 1,500 Purchased surface water 0 0 0
Town of Midwest Midwest 410 Purchased surface water 0 0 0
Natrona County Int'l Airport Casper and land outside it 375 Purchased surface water 1 0 0
Air Base Acres I&S District Mills and land outside it 236 Purchased surface water 0 1 0
Poison Spider I&S District Mills and land outside it 200 Purchased surface water 0 0 0
Town of Edgerton Edgerton 195 Purchased surface water 0 0 0
Sandy Lake Estates I&S District Casper and land outside it 150 Purchased surface water 0 2 0
Pleasant View Water Company Mills and land outside it 130 Purchased surface water 0 0 0
South Riverside Acres Wtr Impr Dist Evansville and land outside it 125 Groundwater 0 0 0
Thirty-Three Mile Road I&S District Casper and Mills and land outside them 100 Purchased surface water 0 1 0
Lakeview I&S District Vista West and Mills 62 Purchased surface water 0 4 0
Mile-Hi I&S District Vista West 48 Purchased surface water 1 0 0
Broken Wrench LLC Casper Mountain and Casper 30 Groundwater 7 0 0

Systems placed by county record in Natrona County

7 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
Terrace I MHC County on record 336 Purchased surface water 0 0 0
Riverside Mobile Home Court County on record 330 Purchased surface water 0 0 0
Hidden Hills MHP County on record 324 Purchased surface water 0 0 0
Terrace II MHC County on record 320 Purchased surface water 0 0 0
Green Valley MHP County on record 265 Purchased surface water 0 0 0
Countryside Court County on record 125 Groundwater 2 1 No inventory
Central Wy Regional Water System JPB County on record 25 Surface water 0 0 0

Cities and towns in Natrona County

11 places

Back to Wyoming

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