# San Bernardino County ePro #SPD127-SPDAD-6480

Hydrogeologic and engineering services for replacement of two CSA 42 Oro Grande wells

**Posted:** October 05, 2026
**Respond By:** December 05, 2026
**Identifier:** SPD127-SPDAD-6480
**NAICS:** 541330, 541360

San Bernardino County is seeking hydrogeologic and engineering services to replace two groundwater wells serving CSA 42 Oro Grande.
- **Buyer:** San Bernardino County Department of Public Works – Special Districts, on behalf of County Service Area 42 (CSA 42) Oro Grande; related well plans identify the Special Districts Department, Development Services Division / Engineering and Construction.
- **Requested services:** Evaluate, design, and support replacement of Wells No. 3 and 4, including site selection, hydrogeologic assessment, aquifer testing, well and facility design, Drinking Water Source Assessment and Protection reporting, permitting, bid support, construction observation, administration, and closeout. Deliverables include staged plans and specifications, cost estimates, record drawings, and a final construction report.
- **Groundwater and continuity requirements:** Assess PFAS detections, the regional hexavalent chromium plume, and other regulated constituents. Keep existing wells operational until the replacement wells are commissioned, then abandon them under applicable standards.
- **Equipment shown in the well-plan attachment:** One 20 HP submersible pump rated at 200 GPM; one 10-by-12-foot chlorine shed; one 70-gallon chlorine solution vessel; one Pulsafeeder metering pump (LPG4SAVHC1); one LMI Digi-Pulse flow meter and limit timer; one turbine flow meter (USGCF w/TR-16); one KPSI Series 720 pressure transducer; and associated chlorine-system components, well piping, and electrical/telemetry equipment. These are plan specifications, not a separate solicitation for product purchases.
- **OEMs and vendors named:** **Pulsafeeder**, **LMI**, **KPSI**, **Rotonics Manufacturing Co.**, and **Shed World** (or equal) are named in the well plans. ATSI is identified for telemetry controls and installation. Matt Chlor Inc. is identified as a distributor in legacy drawings. The solicitation does not require a particular OEM or supplier.
- **Other notable requirements:** Work and installations must meet County water standards; contractors must verify field dimensions and provide actual well data. California prevailing-wage determinations are included for applicable construction crafts.

### Description

San Bernardino County is seeking proposals from qualified professional hydrogeologic and engineering design firms to provide well design and construction support services for replacement of Wells No. 3 and 4 in the County Service Area 42 Oro Grande area. The contract term is a maximum of five years, from January 2027 through January 2032, and services are to be performed in the CSA 42 Oro Grande area. Attendance at the virtual proposal conference on October 14, 2026, is mandatory. Proposals are due December 4, 2026, at 5:00 PM; the source also notes prevailing-wage requirements.

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