NAICS 238910
Septic & Water Well Services in California
Site preparation contractors providing septic system installation and service and water well drilling. Reported within NAICS 238910.
- Establishments (2023)
- 2,711
- Statewide, California
- Employees
- 36,627
- Mid-March employment
- Annual payroll
- $3.4B
- All establishments
- Avg. establishment size
- 13.5
- Employees per establishment
What acquirers look at
Regulated, permit-gated and essentially recession-proof in rural markets. Very high owner age and almost no institutional competition for deals.
Septic & Well by county
Ranked by establishment count, 2023 County Business Patterns. For the crowded-versus-underserved reading, see the saturation ranking, which ranks by establishments per resident instead.
| # | County | Establishments | Per 10k residents | Share of state |
|---|---|---|---|---|
| 1 | Los Angeles County | 365 | 0.4 | 13.5% |
| 2 | Riverside County | 254 | 1.0 | 9.4% |
| 3 | San Diego County | 242 | 0.7 | 8.9% |
| 4 | Orange County | 193 | 0.6 | 7.1% |
| 5 | San Bernardino County | 161 | 0.7 | 5.9% |
| 6 | Sonoma County | 114 | 2.3 | 4.2% |
| 7 | Alameda County | 89 | 0.5 | 3.3% |
| 8 | Contra Costa County | 89 | 0.8 | 3.3% |
| 9 | Sacramento County | 88 | 0.5 | 3.2% |
| 10 | Ventura County | 88 | 1.1 | 3.2% |
| 11 | Placer County | 80 | 1.8 | 3.0% |
| 12 | Santa Clara County | 78 | 0.4 | 2.9% |
| 13 | Fresno County | 64 | 0.6 | 2.4% |
| 14 | San Luis Obispo County | 52 | 1.8 | 1.9% |
| 15 | Kern County | 50 | 0.5 | 1.8% |
| 16 | San Joaquin County | 49 | 0.6 | 1.8% |
| 17 | Santa Barbara County | 46 | 1.0 | 1.7% |
| 18 | El Dorado County | 44 | 2.3 | 1.6% |
| 19 | San Mateo County | 42 | 0.6 | 1.5% |
| 20 | Shasta County | 32 | 1.8 | 1.2% |
| 21 | Butte County | 30 | 1.4 | 1.1% |
| 22 | Stanislaus County | 30 | 0.5 | 1.1% |
| 23 | Nevada County | 28 | 2.7 | 1.0% |
| 24 | Napa County | 27 | 2.0 | 1.0% |
| 25 | Monterey County | 26 | 0.6 | 1.0% |
Counties in California
Septic & Well in Los AngelesSeptic & Well in San DiegoSeptic & Well in OrangeSeptic & Well in RiversideSeptic & Well in San BernardinoSeptic & Well in Santa ClaraSeptic & Well in AlamedaSeptic & Well in SacramentoSeptic & Well in Contra CostaSeptic & Well in FresnoSeptic & Well in KernSeptic & Well in VenturaSeptic & Well in San FranciscoSeptic & Well in San JoaquinSeptic & Well in San MateoSeptic & Well in StanislausSeptic & Well in SonomaSeptic & Well in TulareSeptic & Well in SolanoSeptic & Well in PlacerSeptic & Well in Santa BarbaraSeptic & Well in MontereySeptic & Well in MercedSeptic & Well in San Luis ObispoSeptic & Well in Santa CruzSeptic & Well in MarinSeptic & Well in YoloSeptic & Well in ButteSeptic & Well in El DoradoSeptic & Well in ShastaSeptic & Well in ImperialSeptic & Well in MaderaKingsSeptic & Well in NapaSeptic & Well in HumboldtSeptic & Well in NevadaSeptic & Well in SutterSeptic & Well in YubaSeptic & Well in MendocinoSeptic & Well in San BenitoSeptic & Well in LakeSeptic & Well in TehamaSeptic & Well in TuolumneSeptic & Well in CalaverasSeptic & Well in SiskiyouSeptic & Well in AmadorSeptic & Well in GlennLassenDel NorteSeptic & Well in ColusaSeptic & Well in PlumasInyoSeptic & Well in MariposaTrinitySeptic & Well in MonoModocSierraAlpine
Sources
- U.S. Census Bureau, 2023 County Business Patterns. Establishment counts, employment and annual payroll by NAICS. Retrieved 2026-09-08.
- U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages (2026Q1). Quarterly establishment counts and employment for employers covered by unemployment insurance. Retrieved 2026-09-08.