Fieldwork Actions

Adjust the fish screen baffles and retest within seven days of a hydraulic test showing non-compliance with the CDFW and NMFS fish screening criteria.

Twin Cities Complex

In Progress

Bouldin Island Geotechnical Exploration

In Progress

Byron Tract Forebay

Not Started

Determine occupancy and block or collapse burrows within the work area once they are confirmed vacant.

Bouldin Island Geotechnical Exploration

Not Started

Clean and decontaminate equipment entering and leaving work sites to prevent the spread of invasive species, logging each cleaning.

Intake B — North Delta

Not StartedDue 2026-04-14

Intake C — North Delta

In ProgressDue 2026-11-25

Exclude fish from the construction zone, capture them by approved methods, hold and handle them appropriately, and release them at the approved location within the salvage window.

Intake C — North Delta

Completed

Bethany Reservoir Aqueduct

OverdueDue 2026-10-31

Southern Forebay & Pumping Plant

Completed

A qualified biologist surveys the work area for covered species each day before covered activities begin and records the result.

Byron Tract Forebay

Not StartedDue 2026-11-292 of 3 done

Intake B — North Delta

Not StartedDue 2026-07-231 of 3 done

Intake C — North Delta

Not StartedDue 2026-11-151 of 3 done

Monitor underwater sound during in-water pile driving and record measured levels against the applicable thresholds.

Bethany Reservoir Aqueduct

Completed

Southern Forebay & Pumping Plant

On HoldDue 2026-07-25

Cover open trenches and excavations or fit them with escape ramps at the close of each working day.

Intake C — North Delta

In ProgressDue 2026-11-231 of 3 done

Bethany Reservoir Aqueduct

Not StartedDue 2026-06-111 of 3 done

Southern Forebay & Pumping Plant

Not StartedDue 2026-06-111 of 3 done

Delineate and post signage at the no-activity buffer around each occupied nest or roost identified in or adjacent to the work area.

Byron Tract Forebay

Not Started

Intake B — North Delta

Not Started

Intake C — North Delta

Not Started

Delineate Covered Species habitat and fence construction sites before Covered Activities begin.

Intake B — North Delta

In ProgressDue 2026-03-02

Intake C — North Delta

Not StartedDue 2026-06-29

Bethany Reservoir Aqueduct

OverdueDue 2026-05-23

Flag, stake, or fence the limits of covered species habitat, avoidance buffers, and the construction site boundary on the ground before earthmoving begins.

Intake C — North Delta

Completed

Bethany Reservoir Aqueduct

Not StartedDue 2026-04-12

Southern Forebay & Pumping Plant

Completed

Dewater the aquatic feature before the covered activity starts and hold the required dry period before excavating or filling the dewatered habitat.

Byron Tract Forebay

On HoldDue 2026-10-31

Intake B — North Delta

In ProgressDue 2026-09-01

Intake C — North Delta

Completed

Hand-excavate and collapse burrows within the work area under biologist supervision before trenching begins.

Bouldin Island Geotechnical Exploration

OverdueDue 2026-03-15

Flag and sign approved cross-country access routes before Covered Activities begin.

Intake B — North Delta

On HoldDue 2026-05-16

Intake C — North Delta

Not StartedDue 2026-07-20

Bethany Reservoir Aqueduct

On HoldDue 2026-08-30

Install bird strike diverters on new transmission and distribution lines as part of the Covered Activities.

Bouldin Island Geotechnical Exploration

Completed

Byron Tract Forebay

Not StartedDue 2026-09-30

Install erosion and sediment control measures prior to earth-moving Covered Activities.

Bouldin Island Geotechnical Exploration

Not StartedDue 2026-03-15

Byron Tract Forebay

Not StartedDue 2026-10-17

Install erosion and sediment control measures at disturbed areas before forecast precipitation events.

Bethany Reservoir Aqueduct

Not Started

Southern Forebay & Pumping Plant

Completed

Install environmentally sensitive area fencing and identification signage around each ESA and keep it in place for the duration of covered activities.

Bethany Reservoir Aqueduct

In ProgressDue 2026-12-01

Install exclusion fencing around ground-disturbing work areas and exclusion barriers around vertical shaft openings before the work they protect begins.

Twin Cities Complex

Completed

Bouldin Island Geotechnical Exploration

OverdueDue 2026-11-04

Install visual barriers screening night-use access routes from occupied habitat before nighttime use of those routes.

Byron Tract Forebay

Not Started

Intake B — North Delta

On Hold

Intake C — North Delta

In Progress

Install wildlife under-crossing culverts and post speed limit and wildlife crossing signage on roads through covered species habitat.

Bouldin Island Geotechnical Exploration

In ProgressDue 2026-07-30

Submit handler qualifications and obtain agency approval for each person authorized to capture, handle, or relocate covered species.

Intake B — North Delta

On HoldDue 2026-06-18

Plant vegetative ground cover on disturbed areas after construction is completed.

Byron Tract Forebay

On HoldDue 2026-06-10

Prepare a hazardous materials management plan covering storage, handling, and spill response, and implement it during covered activities.

Twin Cities Complex

Not StartedDue 2026-04-08

Bouldin Island Geotechnical Exploration

Not StartedDue 2026-05-07

Remove and clean the North Delta intake fish screens approximately every six months.

Bouldin Island Geotechnical Exploration

In ProgressDue 2026-07-171 of 3 done

Byron Tract Forebay

Not StartedDue 2027-06-092 of 3 done

Remove temporary exclusion fencing and barriers once covered activities are complete, including removal by the stated date for temporary impacts near aquatic features.

Intake B — North Delta

In ProgressDue 2026-12-07

Intake C — North Delta

Not StartedDue 2026-09-25

Remove temporary fill and construction refuse upon completion of Covered Activities.

Byron Tract Forebay

OverdueDue 2026-06-19

Five days and three days before Covered Activities begin at any construction site with an occupied SWHA nest tree within 0.5 mile, the Designated Biologist observes each occupied nest for at least one hour or until nest status can be determined, documents nesting status and behaviors as the baseline for comparison, and Permittee reports the results to CDFW within 24 hours of each survey.

Twin Cities Complex

Not Started

A Designated Biologist repeats the CDFW-approved invasive plant sampling methodology annually at each Project site, and Permittee uses the results in the Invasive Plant Species Monitoring, Management and Control Plan and reports them to CDFW in the Annual Status Report.

Twin Cities Complex

In ProgressDue 2027-02-221 of 3 done

The Designated Biologist surveys TRBL habitat each year Covered Activities are expected to occur in it, and Permittee reports each survey to CDFW in the Monthly Compliance Report and summarizes them in the Annual Status Report.

Twin Cities Complex

In ProgressDue 2027-01-191 of 3 done

Permittee evaluates baseline water quality before construction to characterize mercury sources and concentrations of mercury, methylmercury, organic carbon, iron and sulfate at each construction site, then implements MMMP mercury monitoring each year in-water Covered Activities occur, reporting results in the Monthly Compliance Report and summarizing them in the Annual Status Report.

Byron Tract Forebay

Not StartedDue 2027-04-262 of 3 done

Intake B — North Delta

In ProgressDue 2027-02-281 of 3 done

Permittee develops and implements the Georgiana Slough hydrodynamics, food web and larval entrainment, tidal wetland restoration efficacy and smelt spawning habitat studies, funds refinement of the Covered Fish Species life cycle models, and carries the results into those models to evaluate Project effects against the Biological Criteria through Phase 2 Operations.

Bouldin Island Geotechnical Exploration

In ProgressDue 2026-06-18

Byron Tract Forebay

Not StartedDue 2026-12-19

Permittee develops with CDFW, funds and runs the Migration and Survival, Predation, and Abundance and Distribution studies at and around the north Delta intakes: installing and maintaining telemetry arrays, ADCPs and fixed sonar; capturing, tagging and subsampling predatory fish; and running near-field and far-field abundance surveys annually through Phase 2 Operations Monitoring. The studies deliver interim and final results establishing baseline and Project effects on DS, LFS, CHNWR, CHNSR…

Bouldin Island Geotechnical Exploration

Not StartedDue 2026-03-18

Byron Tract Forebay

In ProgressDue 2026-10-24

Permittee conducts at least three hydraulic tests of the north Delta intake fish screens during Phase 1 or Phase 2 operations, one at low river flow, one during a high diversion flow event and one under normal operating conditions, following NMFS 2023 Performing Hydraulic Evaluations guidance, and visually inspects the screens during each test to confirm approach and sweeping velocity compliance.

Bouldin Island Geotechnical Exploration

OverdueDue 2026-06-03

Byron Tract Forebay

Not StartedDue 2026-07-17

Permittee photographs each established photo monitoring station before construction and every month until construction and initial restoration are complete, then every three months until restoration success is reached, visiting all stations within two days per cycle and delivering the images in a geographic format monthly with the Monthly Compliance Report and in full with the Annual Status Report.

Intake B — North Delta

Not StartedDue 2026-08-151 of 3 done

Permittee develops with CDFW and implements the sediment and turbidity, harmful algal bloom, selenium bioaccumulation and mercury study plans, running them from the preconstruction baseline period through Phase 2 Operations and evaluating results with the Covered Fish Species life cycle models against the Biological Criteria. Each study carries an adaptive element that expands effort if impacts are detected.

Bouldin Island Geotechnical Exploration

In ProgressDue 2026-07-17

Byron Tract Forebay

Completed

Permittee implements the CDFW-approved Subsurface Testing and Monitoring Study Plan on surface and subsurface vibration effects on CTS, GGS and CBB before initiating Covered Activities at any Project site containing suitable habitat for those species. Results and the proposed vibratory monitoring protocols are carried into the Construction Phase Authorization Package.

Byron Tract Forebay

On HoldDue 2026-07-30

Permittee funds, initiates and implements Covered Fish Species monitoring and science for DS, LFS, CHNWR, CHNSR and WS, beginning with at least five years of In-water Preconstruction Baseline Monitoring before in-water construction and continuing through In-water Construction, Phase 1 Operations and Phase 2 Operations Monitoring. Aquatic conditions assessments for each period feed the Phase 2 Authorization Package and the Final Mitigation Report.

Bouldin Island Geotechnical Exploration

In ProgressDue 2026-09-20

Byron Tract Forebay

In ProgressDue 2026-06-28

Permittee implements the CDFW-approved screen impingement study plan during Phase 1 and Phase 2 Operations, collecting impinged fish data including fork length, evaluating seasonal variation in impingement and measuring the environmental covariates of velocity, turbidity, dissolved oxygen and temperature.

Bouldin Island Geotechnical Exploration

Not StartedDue 2026-04-21

Byron Tract Forebay

Not StartedDue 2026-03-16

Intake B — North Delta

Completed

At least annually after Phase 1 Operations begin, and in conjunction with the visual screen inspections, Permittee inspects and quantifies sediment deposition in front of the tee screen bases at both north Delta intakes and, within 30 days of each inspection, provides CDFW the deposition estimates and an assessment of sediment management device effectiveness and potential screen performance impacts.

Bouldin Island Geotechnical Exploration

In ProgressDue 2026-06-091 of 3 done

Byron Tract Forebay

Not StartedDue 2026-10-071 of 3 done

Intake B — North Delta

In ProgressDue 2027-03-061 of 3 done

Permittee funds, installs and maintains a real-time monitoring station downstream of north Delta Intake C, equipped like the CDEC Sacramento River at Hood station, before In-water Preconstruction Baseline Monitoring begins, and provides the data to CDFW in real time at 15-minute increments.

Byron Tract Forebay

Completed

When the Designated Biologist determines that nesting SWHA within 0.5 mile of the construction site are in distress or showing abnormal nesting behavior from Covered Activities, the biologist stops the work and immediately notifies the Designated Representative.

Southern Forebay & Pumping Plant

Overdue

Twin Cities Complex

On Hold

After each qualifying event affecting screen operations or approach velocity, Permittee initiates additional hydraulic testing of the affected north Delta intake fish screens within two months, or on a schedule CDFW approves, and reports the results.

Byron Tract Forebay

Overdue

Intake B — North Delta

Not Started

A Fisheries Biologist or Biological Monitor visits each site requiring barges, including each north Delta intake and geotechnical exploration site, during the growing season before work begins, during construction, and annually for up to five years after construction, recording the extent of emergent and riparian vegetation, bank conditions on both riverbanks and general site conditions.

Bouldin Island Geotechnical Exploration

On HoldDue 2026-06-161 of 3 done

Byron Tract Forebay

Not StartedDue 2026-12-282 of 3 done

Intake B — North Delta

Not StartedDue 2027-01-012 of 3 done

Permittee verifies through Annual Status Report documentation of impacts and mitigation that the assumed impact multipliers for the 230 kV transmission lines and for preconstruction activities hold, comparing actual disturbance against the assumed tower footprint, work area and temporary surface impact shares.

Southern Forebay & Pumping Plant

Not StartedDue 2026-11-272 of 3 done

Twin Cities Complex

Not StartedDue 2027-06-022 of 3 done

The Permittee backfills every subsurface pit, trench and borehole from preconstruction field investigations with the excavated material, places stockpiled topsoil at the surface, and fully restores each investigation site under COA 12.3.3, within one year of initiating Covered Activities.

Intake C — North Delta

On HoldDue 2026-08-23

Once CDFW approves HM lands, the Permittee develops and transfers GIS data where applicable, establishes initial fencing, removes litter, performs initial habitat restoration or enhancement where applicable, and installs signage. These start-up tasks complete on each approved HM land parcel.

Intake C — North Delta

On HoldDue 2026-08-10

Before Covered Activities start for each Phase, the Permittee completes purchase of Covered Species credits, required restoration, acquisition and permanent protection and transfer of all HM lands with conservation easements recorded, and funding for perpetual monitoring and management — or posts COA 13 Security covering every uncompleted obligation before impacts to Covered Species are incurred. The completion package is assembled and dated per Phase.

Bethany Reservoir Aqueduct

Not StartedDue 2026-05-14

Southern Forebay & Pumping Plant

OverdueDue 2026-11-22

Twin Cities Complex

In ProgressDue 2026-05-01

If monitoring shows Project mercury impacts exceeding the Covered Fish Species Biological Criteria, the Permittee develops a methylmercury management approach consistent with the Sacramento-San Joaquin Delta Estuary Methylmercury TMDL and the Basin Plan amendments for methylmercury and total mercury, and implements the measures it identifies. The approach document and its implementation records are the tracked product.

Southern Forebay & Pumping Plant

Not Started

Twin Cities Complex

On Hold

Before in-water construction begins the Permittee works with CDFW to identify and fund projects offsetting Phase 1 and Phase 2 operations impacts on white sturgeon, with final project selection subject to CDFW approval. All CDFW-approved projects are complete before Phase 1 Operations begin.

Bethany Reservoir Aqueduct

Not StartedDue 2026-05-29

For each occupied Swainson's hawk nest site removed by Covered Activities, the Permittee plants five mature suitable nest trees at least 20 feet tall plus fifteen five-gallon suitable nest trees at a CDFW-approved location within preserved HM lands, before the nest site is impacted. For each suitable nest tree removed, the Permittee plants five five-gallon native SWHA nesting trees within or adjacent to conserved foraging habitat.

Intake B — North Delta

On HoldDue 2026-06-14

Intake C — North Delta

Not StartedDue 2026-10-07

If barge operations erode 20 percent or more of a bank, the Permittee retains a qualified restoration specialist to restore the eroding bank. The completed bank restoration is the tracked deliverable.

Southern Forebay & Pumping Plant

Not Started

Twin Cities Complex

In Progress

For every area temporarily disturbed by Covered Activities — power line work, SCADA and transmission corridors, access roads, channel and upland work, and the on-site acreages in Table 12-1 — the Permittee removes temporary fill, debris and stockpiles, regrades to pre-existing contour and hydrology, and recontours, reseeds and replants with CDFW-approved native species under the Restoration and Revegetation Plan. Each area is restored to pre-Project conditions or better within the year of the…

Bethany Reservoir Aqueduct

Not StartedDue 2026-03-30

Southern Forebay & Pumping Plant

In ProgressDue 2026-03-30

Twin Cities Complex

Not StartedDue 2026-06-29

The Permittee sites, designs, restores, preserves and provides perpetual management of the construction compensatory mitigation habitat in Table 12-1: 18.26 acres of freshwater tidal perennial habitat for Delta smelt, 18.26 acres of tidal perennial habitat for longfin smelt, 1,501.8 acres of shallow freshwater spawning habitat, and 18.26 acres of tidal perennial plus 9,866 linear feet of channel margin habitat for each of winter-run and spring-run Chinook salmon and white sturgeon in the…

Intake C — North Delta

On HoldDue 2026-04-30

Bethany Reservoir Aqueduct

Not StartedDue 2026-07-10

The Permittee sites, designs, restores, preserves and provides perpetual management of the operations compensatory mitigation habitat in Table 12-2: 1,352 acres of tidal perennial rearing and refuge habitat for each of Delta smelt and longfin smelt in the tidal Delta and Suisun Marsh, and 3,500 acres of tidal perennial plus 2,634 linear feet of channel margin habitat for each of winter-run and spring-run Chinook salmon and white sturgeon downstream of the north Delta intakes. All of it is…

Southern Forebay & Pumping Plant

In ProgressDue 2026-12-08

Twin Cities Complex

OverdueDue 2026-08-25

Bouldin Island Geotechnical Exploration

On HoldDue 2026-05-28

Within four months of recording or transfer of approved HM lands, field biologists complete a baseline biological assessment and land survey report for the property as the first of the start-up activities, alongside GIS data development and transfer where applicable.

Twin Cities Complex

Not StartedDue 2026-03-10

Bouldin Island Geotechnical Exploration

Not StartedDue 2026-11-08

Byron Tract Forebay

Not StartedDue 2026-03-21

No more than 14 days before Covered Activities begin at a construction site, Permittee photographs each distinct suitable habitat area with at least five photographs per area, one each from the north, south, east and west plus one facing the area, separately for each Covered Species' habitat, and files the images in the GIS habitat tracking.

Bethany Reservoir Aqueduct

Not StartedDue 2026-11-01

Each year Covered Activities are expected in CTS habitat or within 75 feet of it, the Designated Biologist repeats the CTS protocol survey and Permittee reports the results to CDFW in the Monthly Compliance Reporting and summarizes them in that year's Annual Status Report.

Bouldin Island Geotechnical Exploration

In ProgressDue 2026-08-281 of 3 done

Byron Tract Forebay

Not StartedDue 2026-06-091 of 3 done

After the Construction Phase Authorization Package is submitted, the Designated Biologist repeats the GGS survey each year Covered Activities are expected in GGS habitat or within three feet of it, and Permittee reports the results to CDFW in the Monthly Compliance Reporting and summarizes them in the Annual Status Report.

Byron Tract Forebay

On HoldDue 2027-01-051 of 3 done

Each year Covered Activities are expected in or within 0.5 mile of SWHA nesting habitat, the Designated Biologist surveys all suitable and known nest trees on the seasonal schedule set by COA 11.71, reports each survey in the Monthly Compliance Report, and summarizes results and the locations of all known and occupied nest trees within 0.5 mile in the Annual Status Report.

Intake B — North Delta

Not StartedDue 2027-01-281 of 3 done

Intake C — North Delta

OverdueDue 2027-03-261 of 3 done

Bethany Reservoir Aqueduct

On HoldDue 2027-03-151 of 3 done

Each year the Designated Biologist conducts CDFW-approved CBB surveys to establish that year's Queen and Gyne Flight Season dates, which shift with drought, temperature and precipitation, so the seasonal work restrictions can be applied to the correct dates.

Intake B — North Delta

In ProgressDue 2026-12-211 of 3 done

Each year Covered Activities are expected in MALI habitat, and again before SCADA or transmission line maintenance and repair, the Designated Biologist or Biological Monitor repeats the MALI preconstruction survey so that non-disturbance buffers can be placed around any plants found.

Southern Forebay & Pumping Plant

Not StartedDue 2026-11-082 of 3 done

Twin Cities Complex

Not StartedDue 2026-06-051 of 3 done

Bouldin Island Geotechnical Exploration

In ProgressDue 2027-02-231 of 3 done

Permittee uses existing Delta monitoring surveys (20mm, EMP, Fall Midwater Trawl, Summer Townet, Fish Restoration Program) plus new surveys near the north Delta intakes to quantify the distribution and abundance of Covered Fish Species food web resources in reaches that Project operations could affect. Surveys run annually for at least five years before Phase 1 Operations and the resulting baseline data feed the life cycle models used against the Biological Criteria.

Bethany Reservoir Aqueduct

Not StartedDue 2027-02-062 of 3 done

Before any Covered Activity starts at a construction site, a CDFW-approved Designated Biologist qualified in botanical surveys submits the sampling methodology to CDFW in the Phase Authorization Package and then conducts a qualitative and quantitative baseline survey of invasive plant type, location and abundance within the site using that methodology.

Twin Cities Complex

Not StartedDue 2026-11-06

Bouldin Island Geotechnical Exploration

Not StartedDue 2026-03-04

Byron Tract Forebay

In ProgressDue 2026-06-20

Before Covered Activities commence for each Project Phase, the Designated Biologist conducts a CDFW-protocol habitat assessment during the breeding season (March 1 to September 15) to identify existing or potential TRBL nesting and foraging sites within the Project site and, where feasible, within three miles, surveying adjacent parcels only where access is granted or they are visible from authorized areas.

Intake B — North Delta

Not Started

Intake C — North Delta

Completed

Bethany Reservoir Aqueduct

Overdue

Before any vegetation clearing or ground-disturbing Covered Activity, the Designated Biologist or Biological Monitor completes nocturnal walking or cover-board surveys giving 100 percent visual coverage of the construction site and its 75-foot boundary at every site in suitable upland habitat within 1.3 miles of a CTS breeding site, checking beneath woody debris and other refugia. Any CTS found is moved by the Designated Biologist under the CTS Relocation Plan.

Bouldin Island Geotechnical Exploration

Overdue

Byron Tract Forebay

Not Started

Within 24 hours before exclusion fencing is installed, the Designated Biologist or Biological Monitor surveys the construction site and three-foot buffer with 100 percent visual coverage for GGS. If a snake is found, installation is delayed until it leaves on its own or is removed and relocated under COA 11.67.

Intake C — North Delta

In Progress

Bethany Reservoir Aqueduct

Not Started

The Designated Biologist field-surveys the planned construction site and accessible land within 1,300 feet of it to identify suitable habitat for each Covered Species as defined in COA 10.4. The initial results, the spatial extent of suitable habitat per species and the total area surveyed are included in the Construction Phase Authorization Package.

Bethany Reservoir Aqueduct

OverdueDue 2026-05-12

When preconstruction field investigations must occur during the SWHA nesting season, the Designated Biologist surveys the preconstruction activity site and the area within 0.5 mile for nesting SWHA before those activities begin.

Intake C — North Delta

In Progress

Bethany Reservoir Aqueduct

On Hold

After aquatic habitat is dewatered, the Designated Biologist surveys all suitable GGS aquatic and upland habitat within the construction site that lies outside established ESAs, and relocates any GGS observed under the GGS Relocation Plan.

Intake C — North Delta

In ProgressDue 2026-04-07

Bethany Reservoir Aqueduct

Not StartedDue 2026-06-19

Before ground disturbance or vegetation removal in suitable CBB habitat during the colony active period (February 1 to October 31, or until flowering vegetation is largely desiccated), the Designated Biologist with Biological Monitor assistance runs at least three protocol surveys beyond the baseline, spaced two to four weeks apart with the last within 72 hours of construction, in every year work occurs in or within 50 feet of suitable habitat, and repeats the surveys in undisturbed habitat…

Byron Tract Forebay

On HoldDue 2026-07-121 of 3 done

Intake B — North Delta

In ProgressDue 2026-11-251 of 3 done

Before ground-disturbing Covered Activities for each Project Phase, site-level surveys under the CDFW-approved protocol determine whether CBB is present within or adjacent to the proposed activities, and Permittee submits the results to CDFW in the Construction Phase Authorization Package.

Byron Tract Forebay

OverdueDue 2026-06-14

Intake B — North Delta

Not StartedDue 2026-07-18

Before any Covered Activities, including preconstruction activities, during the GGS active season (May 1 to October 1), the Designated Biologist with Biological Monitor assistance conducts CDFW-approved preconstruction surveys within each Project site and a three-foot buffer, and Permittee submits the results to CDFW in the Construction Phase Authorization Package.

Byron Tract Forebay

In ProgressDue 2026-07-11

Before Covered Activities, a CDFW-approved Designated Biologist with Delta special-status plant expertise, assisted by Biological Monitors as needed, conducts floristic surveys under CDFW-approved protocols and the CDFW and USFWS botanical survey guidelines to identify MALI and suitable MALI habitat within all Project sites and a 100-foot buffer, and Permittee submits the results to CDFW for written approval before starting work.

Twin Cities Complex

On HoldDue 2026-07-29

Bouldin Island Geotechnical Exploration

In ProgressDue 2026-10-26

Before any Covered Activities, the Designated Biologist, assisted by Biological Monitors as needed, surveys under the CDFW-approved SWHA protocol to identify suitable and known nest trees (occupied in any of the past five years) within 0.5 mile of each preconstruction, SCADA, transmission line, access road, construction and postconstruction maintenance site. Permittee submits the results, with occupied and recently occupied nests noted on the plans, in the Construction Phase Authorization…

Byron Tract Forebay

Completed

Each year Covered Activities are expected in or within 1,300 feet of TRBL habitat, the Designated Biologist surveys for breeding colonies and suitable nesting habitat during the breeding season, monthly in March, April, May, June, July and September, in the year before and the year of the work. If work begins during the breeding season, three surveys occur within 15 days of commencement with one within three days of ground disturbance, and a survey is run three days before reinitiating after…

Bouldin Island Geotechnical Exploration

Not StartedDue 2026-12-022 of 3 done

Byron Tract Forebay

OverdueDue 2026-09-261 of 3 done

Intake B — North Delta

Not StartedDue 2026-06-101 of 3 done

Before any Covered Activities, the Designated Biologist, with Biological Monitor assistance as needed, runs the CDFW-approved TRBL survey protocol to identify suitable nesting and roosting habitat within each preconstruction, SCADA, transmission line, access road, construction and maintenance site, and Permittee obtains the most recent colony information from the UC Davis Tricolored Blackbird Portal Project, or another CDFW-approved source, for use in the site-specific surveys.

Bouldin Island Geotechnical Exploration

In ProgressDue 2026-05-21

Byron Tract Forebay

On HoldDue 2026-06-02

Intake B — North Delta

Completed

Each survey year, the Designated Biologist surveys for TRBL roosting habitat and its use during the nonbreeding season (September 16 to February 28), in the year before and the year of the work, at each construction site or maintenance area and within 300 feet of it, including before nighttime construction and postconstruction maintenance. If work begins in the nonbreeding season, three surveys occur within the prior 15 days with one within three days, and a survey is run three days before…

Intake B — North Delta

On HoldDue 2026-11-161 of 3 done

Permittee surveys the bathymetry of the Sacramento River from upstream of Intake B near Scribner Bend through one mile downstream of Intake C to detect deposition or scour that could change the stage-discharge relationship. Surveys follow high flow events with bypass flows above 35,000 cfs, occur no fewer than four times before Phase 1 Operations, and each survey is reported within 120 days of completion.

Southern Forebay & Pumping Plant

Not StartedDue 2026-11-131 of 3 done

Twin Cities Complex

On HoldDue 2026-06-251 of 3 done

Bouldin Island Geotechnical Exploration

Not StartedDue 2026-10-172 of 3 done

Before ground disturbance, Permittee establishes a representative number of numbered treatment transects in areas to be disturbed, pairs each with a reference site of intact habitat of similar slope, aspect and hydrology, photographs both in spring (March to June) while flowering plants are in bloom, and evaluates reference-site species composition to guide restoration.

Southern Forebay & Pumping Plant

Not StartedDue 2026-11-12

At least five days before earthmoving in an area, the Designated Biologist or Biological Monitor identifies and flags all potential burrows, soil cracks, crevices and other habitat features that lie within the construction site but outside the planned direct-disturbance footprint, including all avoidable burrows, demarcates areas of high burrow concentration for avoidance, and uses signs, stakes or flags clearly distinguishable from work-area markings.

Intake B — North Delta

Not StartedDue 2026-12-17

Intake C — North Delta

In ProgressDue 2026-08-26

Bethany Reservoir Aqueduct

Completed

At least one year before in-water construction begins, Permittee funds and implements, with CDFW, a study within the Abundance and Distribution Study that determines where Delta Smelt and Longfin Smelt spawn in the Sacramento River, the share of adults spawning upstream of the north Delta intakes, bank and low-velocity habitat use for adult and larval migration, and the substrate, velocity and salinity characteristics of spawning habitat.

Intake C — North Delta

Completed

Bethany Reservoir Aqueduct

In ProgressDue 2026-12-17

Permittee trains Project personnel who handle petroleum products and other hazardous materials in emergency response and spill containment techniques as required by the Spill Prevention, Control, and Countermeasure Plan. Training is delivered before those personnel perform the covered work and completion is captured on a signed roster filed with the SPCCP.

Byron Tract Forebay

Not StartedDue 2026-11-29

Intake B — North Delta

In ProgressDue 2026-09-24

A Designated Biologist, Fisheries Biologist, or Biological Monitor presents the Condition of Approval 9.4 education program to every person working in the Project Area before that person performs any work, covering Covered Species biology and timing windows, the Conditions of Approval, take-minimization protocols, non-covered listed species, site boundaries and disturbance-free zones, habitat avoidance, fencing and staking, roles, encounter and emergency procedures, and legal status and…

Byron Tract Forebay

In ProgressDue 2026-09-021 of 3 done

Intake B — North Delta

Not StartedDue 2026-12-022 of 3 done

Before fish rescue workers access the work site, Permittee provides safety training and assigns at least one Designated Fisheries Biologist to each fish salvage team. Electrofishing is staffed as one or two teams of three to four people, each with a unit operator and two or three netters. The product is a dated safety-training roster and a salvage team roster for the salvage event.

Intake C — North Delta

Completed

Bethany Reservoir Aqueduct

Completed

Southern Forebay & Pumping Plant

Not StartedDue 2026-09-01

Permittee ensures every tugboat and barge operator working on the Project is trained to minimize impacts on Covered Species habitat, including reducing the effects of wake on vegetated banks, before that operator runs a Project vessel. Completion is documented for each named operator.

Intake B — North Delta

In ProgressDue 2026-09-14