Environmental Documents Archive
2022
2022 CEQA Documents
Notice of Exemption:
- Well ET-1 Rehabilitation
- El Toro Road Sewer Manhole Raise to Grade Project
- District-Wide Emergency Generator Fuel Storage Project
- Michelson Water Recycling Plant - New Warehouse, Canopy and Water Quality Storage Building Project
- Santiago Creek Dam Supplemental Geotechnical Exploration Work Plan
- Rattlesnake Dam Geotechnical Investigation Work Plan
- Dyer Road Well Field Well 12 Rehabilitation
- Syphon Reservoir Off-Site Riparian and Wetland Habitat Mitigation
- Santiago Creek Dam Geotech Phase 2
- Lake Forest Well 2 Treatment and Sewer Bypass
2021
2021 CEQA Documents
Notices of Determination
- Addendum No. 2 to Reservoir Management System-Chlorine Analyzers Final Mitigated Negative Declaration
- Addendum No. 1 to Orange Park Acres Well Replacement Project Final Mitigated Negative Declaration
- Fleming Zone 8 Reservoir and Pump Station Improvements Final Mitigated Negative Declaration
- Syphon Reservoir Improvement Project Final Environmental Impact Report (178mb)
- Lake Forest Zone B to C Pump Station Final Mitigated Negative Declaration
- San Joaquin Reservoir Filtration Facility Final Mitigated Negative Declaration
Notice of Availability:
Notice of Exemption:
- Irvine Desalter Project Shallow Groundwater Unit Facility Optimization for PFAS Treatment
- Domestic Water Reservoirs Air Vent and Miscellaneous Retrofits
- Trunk Sewer Relocation within San Diego Creek near SR-133
- Santiago Canyon Manning Pump Station Project
- Irvine Desalter Project Principal Aquifer Plant Optimization for PFAS Treatment
- Seawatch Recycled Water Pressure Reducing Station
- Rattlesnake Reservoir Outlet Flow Meter and Valve Actuators Replacements
- Woodbridge Recycled Water Pipeline Replacement Project
- Michelson Water Recycling Plant Tertiary Filter Rehabilitation Project
- DRWF Well 51 Rehabilitation Project
- 54-inch Baker Pipeline Realignment in Reach 1U Through Santiago Creek
- APN 842-061-04 Land Acquisition
- Williams Canyon Pipeline Protection
- Silverado Canyon Bridge 175
Notice of Intent:
2020
2020 CEQA Documents
Notices of Availability
Notices of Determination and Final CEQA Documents
- Kern Fan Groundwater Storage Project Final Environmental Impact Report
Zone A to Rattlesnake Reservoir Pump Station Project Mitigated Negative Declaration
Addendum No. 4 to Baker Water Treatment Plant Environmental Impact Report
Notices of Exemption
- Irvine Desalter Project Shallow Groundwater Unit Facility Optimization for PFAS Treatment
- Gillette Morse Domestic Water Pipeline Replacement
15 Million Gallon Zone 1 Reservoir Interior Coating Project
El Toro Road Northcrest Aliso Creek Erosion Repair Project
Michelson Water Recycling Plant Primary Clarifiers 1-5 Covers Replacement Project
Deep Aquifer Treatment Systems Miscellaneous Rehabilitation Project
Harvard Avenue Trunk Sewer Diversion Structure Rehabilitation Project
Dyer Rd Well Field Wells 1 11 and 13 Rehabilitation
Santiago Creek Dam Outlet Tower and Spillway Geotechnical Investigation
Santiago Canyon Pump Stations Improvements Project
Lake Forest Well No. 5 Destruction
Notices of Intent
- Recirculated Mitigated Negative Declaration - San Joaquin Reservoir Filtration Facility
Mitigated Negative Declaration - San Joaquin Reservoir Filtration Facility
Mitigated Negative Declaration - Zone A to Rattlesnake Reservoir Pump Station Project
Notices of Preparation
2019
2019 CEQA Documents
Notices of Determination
Notices of Exemption
- Lake Forest Zone C Pipeline Project
Pelican Hill Golf Club Sewer Rehabilitation
Vault Lid Replacement Project 2019
Dyer Road Well Field Well 14 Rehabilitation
Bonita Canyon Recycled Water Zone D-B Pressure Reducing Station Pipeline Project
Sewer Siphon Improvements Project
Santiago Creek Dam Spillway Assessment
Bake Parkway Zone 5 to 4 Pressure Relief Valve and Pipeline Project
Ladd Canyon Road Domestic Water Pipeline
Notices of Intent
Notices of Preparation
2018
2018 CEQA Documents
Notices of Determination
- Mitigated Negative Declaration - Eastwood Recycled Water Pump Station
- Addendum No. 3 - Baker Water Treatment Plant EIR
- Mitigated Negative Declaration - 3.7 MG Zone 1 Reservoir
- Addendum No. 4 - Michelson Water Recycling Plant Phase 2-3 Expansion
Notices of Exemption
- Lake Forest Zone B East Reservoir Floating Cover Project
Michelson Water Recycling Plant Unit Substation T-1 Replacement Project
Primary Disinfection Facility Sodium Hypochlorite Storage and Feed System
Dyer Rd Well Field Well 5 Rehabilitation
DATS and IDP Instrumentation Modifications
Michelson Water Recycling Plant Headworks Area Modifications
IRWD Certified Natural Gas Filling Station
Lake Forest Recycled Water Services-Bake Pkwy and Toledo Way
Dyer Rd Well Field Wells 10 and 16 Rehabilitation
Newport Coast Zone 4-2 PRV Modification
Elderwood Sewer Pipeline Project
Culver Drive Recycled Water Pipeline
Riparian View Domestic Water Pipeline Replacement
Notices of Intent
2017
2017 CEQA Documents
Notices of Exemption
- MWRP South Irvine Interceptor Sewer Manhole Access
Sewer Vault Riser Hatch Replacement Project
Rockfield Control Facility Automated Valve Project
Michelson Water Recycling Plant Miscellaneous Repairs
Vault Lid Replacement Project 2017-2018
Michelson Water Recycling Plant Security Fencing Project
Wells 2 17 and 52 Rehabilitations Project
Main Street Manhole Rehabilitation Project
IIC East Zone A-B Booster Pump Station Improvements Project
MWRP Filter Pump Station2 Header Replacement Project
Reservoir Ladder Fall Protection Project
Sewer Rehabilitation Project 2017
Laguna Canyon Rd Pipelines Cathodic Protection Project
Michelson Sewer Force Main Rehabilitation Project
Seawatch Recycled Water Pipeline
Turtle Ridge Pipelines Rehabilitation Project
Long-Term Exchange Program Between IRWD and Dudley Ridge Water District
APN 878-151-003, APN 878-210-001, APN 878-270-001, 002 and APN 878-260-001, 002 Land Acquisition
Miscellaneous Riverside County Land Acquisitions
San Joaquin Marsh Campus Sewer Lift Station Rehabilitation
Notices of Intent
2016
2016 CEQA Documents
Notices of Determination
- Addendum 2 to Strand Ranch Integrated Banking Project Environmental Impact Report
- Irvine Lake Pipeline North Conversion Mitigated Negative Declaration
Notices of Exemption
- APN 827-090-004 and APN 827-180-001 Land Acquisition
Dyer Rd Well Field Well 7 and IDP Well 107 Rehabilitation
UCI Cooling Tower Recycled Water Conversion Pipeline Phase 1
Energy Storage Systems Project - Portola Zn 3-5 and A-C Pump Station
Energy Storage Systems Project - Foothill Zn 6 Pump Station
Energy Storage Systems Project - Deep Aquifer Treatment System
Energy Storage Systems Project - Dyer Rd Well 10
Energy Storage Systems Project - Potable Treatment Plant
Energy Storage Systems Project - Los Alisos Water Recycling Plant
Energy Storage Systems Project - Michelson Water Recycling Plant
Energy Storage Systems Project - Wells 21-22 Facility
Energy Storage Systems Project - Coastal Zn D Pump Station
Energy Storage Systems Project - Coastal Zn 4-OC 63 Pump Station
Energy Storage Systems Project - E Irvine Zn 1-3 Pump Station
APN 821-160-001 and APN 821-160-010 Land Acquisition - APN 839-150-001 and APN 839-150-002 Land Acquisition
- Baker Pipeline Cathodic Protection Project
Dyer Road Well Field Surge Tanks Project - Dyer Road Well Field Well 18 Rehabilitation
Irvine Business Complex Sidewalk Improvements - Land Acquisition in Unincorporated Riverside County
- Operations Center Backup Generator Replacement
San Joaquin Marsh Improvements
Tustin Legacy Red Hill Ave Well Site Improvements - Well ET-2 Equipment Replacement
2015
2015 CEQA Documents
Notices of Determination
- Addendum 1 to Reservoir Management System Mitigated Negative Declaration
- Peters Canyon Channel Water Pipeline
- Stockdale Integrated Banking Project-Final Environmental Impact Report
Notices of Exemption
- Acquisition and Annexation of Service Area 7 Sewer System
- Culver Dr Sewer Manhole Rehabilitation
- Dyer Road Well Field Well 3 Rehabilitation
- East Irvine BPS Meter Replacement
- IDF Sodium Hypochlorite Storage and Feed System
- Main Street Diversion Structure Rehabilitation
- MWRP Filter Pump Station and Wells 12-13 Roof Modifications
- Newport Coast Lift Station and Forcemain Rehabilitation
- Rancho Parkway Zone C Pipeline
- Rattlesnake Reservoir Spillway Vegetation
- Relocation of Well-OC 58 Facilities and Easement Acquisition
- Piezometer Access Improvements
- Residential Recycled Water Fill Station Program
- Stockdale West Ranch Emergency Project
- Syphon Reservoir Geotechnical Samplings and Testing
- Syphon Reservoir Slide Gate Repair Project
- Woodhollow Sewer Replacement
Notices of Intent
- Mitigated Negative Declaration - ILP North Conversion
- Mitigated Negative Declaration - Peters Canyon Channel Water Pipeline
Notices of Availability
2014
2014 CEQA Documents
Notices of Exemption
- Booster Pump Station Check Valve Replacement Project
- Cathodic Protection Green Acres Project (GAP) Project
- East Orange County Water District Interconnection Rehabilitation Project
- LAWRP Pond Dredging, Dewatering and Disposal
- Newport Coast Drive Joint Bonding Project
- Rattlesnake Reservoir Chlorine Gas Removal Project
- San Joaquin Marsh Campus Paving Project
- San Joaquin Reservoir Actuator Repair/Replacement Project
- Sewer Rehabilitation Project 2014
- Silverado Canyon Rd. 12 inch Domestic Water Pipeline
- Strand Ranch Wells Optimization and Monitoring Project
- Wells ET1 and ET2 Rehabilitation
2013
2013 CEQA Documents
Notices of Determination
- Addendum No. 1 to Syphon Reservoir Interim Facilities
- Addendum No.2 to Baker Water Treatment Plant Project
- Addendum No. 2 to the City of Lake Forest Sports Park and Recreation Center EIR
- Final Program/Project EIR OCWD Annexation Request
- Syphon Reservoir Interim Facilities
Notices of Exemption
- Baker Pipeline Cathodic Protection Project
- Dyer Rd Well Field Well 2 and 5 Rehabilitations
- Initial Disinfection Facility Chlorine Injection Line Replacement
- Jamboree Center Sewer Improvements
- Marshburn Basin Stairway Construction Project
- Perez Reservoir Demolition
- Portola Springs Recycled Water Pipeline
- Randall Street and Lolita Avenue Domestic Water Pipeline Replacement
- University Sewer Lift Station Odor Control Project
Notices of Preparation
2012
2012 CEQA Documents
Notices of Determination
- Addendum No. 1 City of Lake Forest Sports Park & Recreation Center Final EIR
- Addendum No. 1 to the Baker Water Treatment Plant EIR
- Orange Park Acres Well Replacement Project
Notices of Exemption
- Executive Park Manhole Project
- Kelvin Avenue Cathodic Protection
- Modjeska Canyon Road Domestic Water Pipeline Relocation
- Portola Hills Sewage Lift Station Aboandoment andGlenn Ranch Road Sewer
- Portola Zone 9 Booster Pump Station Generator Project
- Portola Zone 9 Reservoir Access Road Geotechnical Exploration
- PTP CIP Cartridge Filter Modification
- Purchasing Outdoor Storage Racking Project
- San Joaquin Marsh Building Campus Mold Remediation
- San Joaquin Marsh Outlet Pipe Valve Replacement Project
- Sewer Pipeline Rehabilitation - Main St. and Gillette
- Vault Lid Replacement Construction Project
- Vault Lid Replacement Design Project
- Well 110 Rehabilitation
- Well 115 Replacement
Notices of Intent
2011
2011 CEQA Documents
CEQA Documents
- Baker Water Treatment Plant Project
- Biosolids Handling and Energy Recovery Facilities Project
- Deep Aquifer Treatment System Building Upgrades and Repairs Project
- Irvine Desalter Well 4 Deconstruction
- Markuson Road Pipeline Relocation Project
- Michelson Water Recycling Plant Warehouse Mezzanine Conversion and Seismic Upgrades Project
- Newport Blvd 12 Inch Water Main Relocation Project
- OPA Gravier St Headquarters Demolition
- Orange Park Acres Wells Project
- San Joaquin Marsh Small Area Mitiagion Site 1 Project
- Santiago Canyon Area Booster Pump Station Permanent Generators Project
- Santiago Creek Dam Liquefaction Study
- Stockdale West Pilot Project
- Syphon Reservoir Dam Slope Repair
- Syphon Reservoir Geotechnical Exploration Program
- University Drive Cathodic Protection Installation
- Well 107 Replacement Project
2010
2010 CEQA Documents
CEQA Documents
- APN 160-020-12 and 160-020-23 Land Acquisition
- Commercentre Dr. Recycled Water Pipe Upsizing
- IRWD/Jackson Ranch Water Allocation Project
- Lake Forest Well 2 Replacement
- MWRP Dept. 50 Storage Facility
- Portola Parkway Capital Pipelines
- Orange Park Acres Domestic Water Distribution and Transmission System Improvements
- San Diego Creek Watershed Natural Treatment System Environmental Impact Report
- San Joaquin Marsh Streambed Alteration Agreement Renewal
- Trabuco Road Bridge Pipeline Upsize
- Wells 21, 22 and Tustin Legacy 1 Well Project
Quick Links
- Board Meetings & Agendas
- District Election Process
- Dam Safety Program
- Equal Access to Groundwater
- Fats, Oil & Grease Program
- Log-a-Leak
- Rate Changes: Prop. 218 Notices
- Rates & Charges
- Rebates
- Recycled Water
- Request a Water Variance
- Start/Stop Service
- Syphon Reservoir Project
- Transparency & Compensation
- Urban Water Management Plan
- Water Quality Information
