Richland Parish County, Louisiana — public water systems
At a glance
11 active public water systems are filed under Richland Parish County, Louisiana in EPA's SDWIS records, together reporting 23,607 people served. The largest is Town of Rayville Water System, which reports serving 4,842 people. 10 are community water systems serving people where they live; the other 1 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
11
Population served
23.6K
Community systems
10
Groundwater share
100%
How does Richland Parish County compare with other Louisiana counties?
Richland Parish County has the 40th-most active public water systems among the 79 counties listed for active Louisiana systems in EPA records; among the 59 with 3 or more systems, the median has 13. Its systems report 23,607 people served in total, the 47th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 2,146 people, about half of the Louisiana average of 4,685. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Richland Parish County's drinking water come from?
By primary water source, Richland Parish County's active systems draw on groundwater (10, 91%) and purchased groundwater (1, 9.1%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 92% and 7.7% across Louisiana. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Town of Rayville Water System, draws primarily on groundwater.
What kinds of water systems operate in Richland Parish County?
Richland Parish County's active systems break down as 10 community systems (91%) and 1 transient non-community systems (9.1%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (55%) and local government (45%).
Water systems in Richland Parish County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Town of Rayville Water System | Richland Parish | 4,842 | Community | Groundwater |
| 2 | Archibald Water System | Richland Parish | 4,200 | Community | Groundwater |
| 3 | Town of Delhi Water Supply | Richland Parish | 4,071 | Community | Groundwater |
| 4 | River Road Water System | Richland Parish | 3,510 | Community | Groundwater |
| 5 | East Richland Ww District | Richland Parish | 3,120 | Community | Purchased groundwater |
| 6 | Start Water System | Richland Parish | 2,514 | Community | Groundwater |
| 7 | Village of Mangham Water System | Richland Parish | 927 | Community | Groundwater |
| 8 | Boggy Bayou Water System | Richland Parish | 198 | Transient non-community | Groundwater |
| 9 | Bcc Detention Center Ws | Richland Parish | 150 | Community | Groundwater |
| 10 | Palmetto Addiction Recovery | Richland Parish | 45 | Community | Groundwater |
| 11 | Richland Heights Subd Water System | Richland Parish | 30 | Community | Groundwater |
Richland Parish County water systems: frequently asked questions
How many public water systems are in Richland Parish County, Louisiana?
EPA's SDWIS records file 11 active public water systems under Richland Parish County, Louisiana: 10 community systems (91%) and 1 transient non-community systems (9.1%).
Who supplies drinking water in Richland Parish County, LA?
The largest community water systems filed under Richland Parish County are Town of Rayville Water System (4,842 people served), Archibald Water System (4,200 people served) and Town of Delhi Water Supply (4,071 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Richland Parish County's drinking water come from groundwater or surface water?
Of the 11 active public water systems in Richland Parish County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Town of Rayville Water System, uses groundwater.
Where can I find a water quality report for Richland Parish County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 10 community systems are filed under Richland Parish County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Richland Parish County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Louisiana water systems
- All Louisiana public water systems· 1,121 active
- Vermilion Parish County· 12 systems
- Caldwell Parish County· 11 systems
- Claiborne Parish County· 11 systems
- Pointe Coupee Parish County· 11 systems
- Allen Parish County· 10 systems
- East Feliciana Parish County· 10 systems
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Public water systems in Richland Parish County, Louisiana”, https://aquacensus.com/water-systems/louisiana/richland-parish (data as of October 1, 2026).