Explorer Well Project

Summary

SCH Number
2024020158
Lead Agency
City of Pasadena
Document Title
Explorer Well Project
Document Type
MND - Mitigated Negative Declaration
Received
Present Land Use
Open Space Zoning/ Open Space General Plan Designation
Document Description
The Project involves construction of a new groundwater production well and its connection to the Monk Hill Water Treatment Plant (MHWTP) to optimize removal of perchlorate and VOCs from what is referred to as the “mid-plume” area of contamination in the underlying aquifer. The Project includes a new well, an 800-foot segment of raw water pipeline, and outlet pipes to existing basins. The Project site is in the City of Pasadena on land owned by the City in the Hahamongna Watershed of the Arroyo Seco, a 24.9-mile-long tributary to the Los Angeles River. The Project site is located approximately 200 feet east of the Arroyo Seco, approximately 215 feet west of properties that are within unincorporated Los Angeles County, and approximately 520 feet east of the JPL property, which is located at 3800 Oak Grove Drive in Pasadena. The Project site is located on and near the former JPL East Parking Lot.

Contact Information

Name
Johnathon Giang, P.E.
Agency Name
City of Pasadena Water and Power Department
Job Title
Engineer
Contact Types
Lead/Public Agency

Location

Cities
Pasadena
Counties
Los Angeles
Regions
Citywide
Cross Streets
Explorer Road and North Windsor Avenue
Zip
91103
Total Acres
1.52
Parcel #
5823-015-902
State Highways
I-210
Railways
None
Airports
None
Schools
Franklin ES, Jackson ES, Cleveland ES, Washington Accelerated ES
Waterways
Arroyo Seco Channel
Township
1N
Range
12W
Section
00
Base
PASADENA
Other Information
Additional Schools: Altadena ES, Paradise Canyon ES, La Canada HS, John Muir HS

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 7 (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), Department of Toxic Substances Control, Office of Historic Preservation, San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy (RMC), State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Drinking Water, District 7, State Water Resources Control Board, Division of Water Rights, State Water Resources Control Board, Divison of Financial Assistance
Development Types
Water Facilities (Groundwater Well and Pipeline)(Type GW Well/Pipeline, MGD 2.3)
Local Actions
Well Permit; City of Pasadena Municipal Code Exemption
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Drainage/Absorption, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Septic System, Sewer Capacity, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire
Local Review Period Start
Local Review Period End

Attachments

Notice of Completion [NOC] Transmittal form

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