County drinking water records
Benton County, WA drinking water systems
30 community water systems serve Benton County, WA, reporting 266,995 people served in all. A system that also serves other counties counts all of its customers here.
6 of them (20%) had at least one health-based violation in the last 10 years. 1 system still has one unresolved.
26 rely mainly on groundwater and 4 on surface water, counting water bought from other systems.
25 systems filed a lead service line inventory listing 0 lead lines, 162 galvanized lines that must be replaced and 651 lines of unknown material.
14 more systems are placed in Benton County, WA 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
- 30
- People served, sum of each system's own figure
- 266,995
- Systems with a health-based violation, last 10 years
- 6
- Systems with one unresolved
- 1
- Lead service lines in inventories
- 0
Water systems serving Benton County
30 systemsPeople 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 Kennewick | Kennewick | 118,164 | Surface water | 0 | 0 | 0 |
| City of Richland | Richland | 106,499 | Surface water | 0 | 0 | No inventory |
| City of West Richland | West Richland | 21,231 | Purchased surface water | 0 | 0 | 0 |
| City of Prosser | Prosser | 6,211 | Groundwater | 0 | 0 | 0 |
| Benton City Water | Benton City | 5,626 | Groundwater | 0 | 0 | 0 |
| Badger Mountain Irrigation District | Richland | 2,331 | Purchased surface water | 7 | 0 | No inventory |
| Summit View Water System | Outside cities and towns | 1,869 | Groundwater | 0 | 1 | 0 |
| BC Water Co | Outside cities and towns | 1,262 | Groundwater | 5 | 0 | 0 |
| Oasis Water Corporation | Outside cities and towns | 556 | Groundwater | 0 | 0 | 0 |
| Great Basin Water Kiona | Outside cities and towns | 520 | Groundwater | 0 | 0 | No inventory |
| Canyon Village Water System Inc | Outside cities and towns | 310 | Groundwater | 0 | 0 | 0 |
| Homestead Manufactured Housing | Finley | 300 | Groundwater | 1 | 0 | 0 |
| Tri-City Water District #45 | Richland | 300 | Groundwater | 0 | 0 | 0 |
| Plymouth Water District | Outside cities and towns | 288 | Groundwater | 6 | 0 | 0 |
| Red Mountain Water Association | Outside cities and towns | 200 | Groundwater | 0 | 0 | 0 |
| Southgate Water Company | Outside cities and towns | 175 | Groundwater | 0 | 0 | 0 |
| Columbia Place LLC | Finley | 125 | Groundwater | 0 | 0 | 0 |
| Kiona Village Court | Outside cities and towns | 124 | Groundwater | 0 | 0 | 0 |
| Rainbow Court | Grandview and land outside it | 120 | Groundwater | 0 | 0 | 0 |
| Roza Heights Water Assn | Outside cities and towns | 110 | Groundwater | 0 | 0 | 0 |
| Conagra Foods Lamb Weston Inc-Farm | Outside cities and towns | 107 | Groundwater | 0 | 0 | 0 |
| Sundance Improvement Association | Finley | 100 | Groundwater | 13 | 0 | 0 |
| Great Basin Water Sunrise | Outside cities and towns | 100 | Groundwater | 0 | 0 | No inventory |
| Paterson Heights Water Assn | Outside cities and towns | 85 | Groundwater | 0 | 0 | 0 |
| Kiona West Heights Water Assoc. | Outside cities and towns | 77 | Groundwater | 0 | 0 | 0 |
| Whitstran Heights Water Association | Outside cities and towns | 65 | Groundwater | 0 | 0 | 0 |
| Badger Canyon Water Assn | Outside cities and towns | 40 | Groundwater | 0 | 0 | 0 |
| Good Neighbors Water Assn | Finley | 40 | Groundwater | 1 | 0 | 0 |
| Mount Adams Vista Water System | Outside cities and towns | 34 | Groundwater | 0 | 0 | 0 |
| Coxville Water Assn #1 | Outside cities and towns | 26 | Groundwater | 0 | 0 | No inventory |
Systems placed by county record in Benton County
14 systemsEPA 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 |
|---|---|---|---|---|---|---|
| Community Sewer and Water District | County on record | 1,200 | Groundwater | 0 | 0 | 0 |
| Metz Community & RV LLC | County on record | 245 | Purchased surface water | 0 | 0 | 0 |
| Wilgus Housing Water System | County on record | 220 | Groundwater | 1 | 0 | No inventory |
| Wyckoff Farms | County on record | 131 | Groundwater | 0 | 0 | No inventory |
| Hillview Mobile Community LLC | County on record | 118 | Groundwater | 0 | 0 | 0 |
| River Ridge Farmworker Housing | County on record | 98 | Groundwater | 0 | 0 | 0 |
| GMP Orchards LLC - Harbo | County on record | 96 | Groundwater | 0 | 0 | No inventory |
| Eaton Park Subdivision | County on record | 70 | Groundwater | 0 | 0 | 0 |
| Agrinorthwest Riverbend | County on record | 59 | Groundwater | 7 | 1 | 0 |
| Badger Canyon Ranchettes #2 | County on record | 50 | Groundwater | 0 | 0 | 0 |
| Goodnight Water System | County on record | 47 | Groundwater | 0 | 0 | 0 |
| Bar 80 Ranchettes | County on record | 32 | Groundwater | 0 | 0 | 0 |
| Mt View Tracts | County on record | 31 | Groundwater | 1 | 0 | 0 |
| Goose Gap Water Association | County on record | 25 | Groundwater | 0 | 0 | No inventory |
Cities and towns in Benton County
6 places- Benton City1 system
- Finley4 systems
- Kennewick1 system
- Prosser1 system
- Richland3 systems
- West Richland1 system
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