Public water system · SC4070203
ActiveHwy 378 Diner (Sc4070203)
At a glance
Hwy 378 Diner (Sc4070203) (PWSID SC4070203) is an active transient non-community water system in Richland County, South Carolina. It reports serving 100 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100
Service connections
3
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Hwy 378 Diner (Sc4070203) compare with other water systems in Richland County?
By EPA's size categories, Hwy 378 Diner (Sc4070203) is a very small system (500 people or fewer). Richland County has 76 active public water systems. Its population served is well below the county average of 5,214 people per system, and accounts for less than 0.1% of the 396,265 people reported by systems filed under the county. Across South Carolina, the 1,392 active systems average 3,511 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Hwy 378 Diner (Sc4070203) is about 31% below that figure.
What does “transient non-community water system” mean?
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. South Carolina has 743 active transient non-community water systems, 53% of the state's 1,392 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 933 South Carolina systems (67%) list groundwater as their primary source.
Who owns and regulates Hwy 378 Diner (Sc4070203)?
EPA lists Hwy 378 Diner (Sc4070203) as privately owned. The SC state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 60 of the 76 active systems in Richland County (79%) are also privately owned.
Does Hwy 378 Diner (Sc4070203) have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Hwy 378 Diner (Sc4070203). For the latest compliance status, check EPA ECHO for current compliance history.
Hwy 378 Diner (Sc4070203): frequently asked questions
Who runs Hwy 378 Diner (Sc4070203)?
Hwy 378 Diner (Sc4070203) (PWSID SC4070203) is a transient non-community water system privately owned. It is regulated by the SC state drinking water program.
How many people does Hwy 378 Diner (Sc4070203) serve?
Hwy 378 Diner (Sc4070203) reports serving 100 people through 3 service connections in Richland County, South Carolina.
Where does Hwy 378 Diner (Sc4070203) get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Hwy 378 Diner (Sc4070203) have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Hwy 378 Diner (Sc4070203)'s water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the SC state drinking water program.
Where can I find Hwy 378 Diner (Sc4070203)'s water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Hwy 378 Diner (Sc4070203) is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Richland County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Columbia City of (Sc4010001) | Richland | 354,068 | Community | Surface water |
| Fort Jackson (Sc4010501) | Richland | 31,000 | Community | Purchased surface water |
| Hopkins Community Water System (4020002) | Richland | 2,200 | Community | Groundwater |
| Mccrady Training Center (Sc4070911) | Richland | 1,200 | Non-transient non-community | Groundwater |
| Bgwc Raintree Acres (Sc4050015) | Richland | 799 | Community | Purchased surface water |
| Sylvamo Eastover Mill (Sc4030005) | Richland | 750 | Non-transient non-community | Groundwater |
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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, “Hwy 378 Diner (Sc4070203), PWSID SC4070203, South Carolina”, https://aquacensus.com/water-systems/south-carolina/hwy-378-diner-sc4070203-sc4070203 (data as of October 1, 2026).