ENPLAN specializes in environmental consulting and geographic information systems (GIS) development. Over 500 public and private sector clients have been served since 1980. Our goal is leading-edge quality and innovation in all solutions delivered.

Work now in progress:


High Resolution Orthoimagery Digital Elevation Data Digital Elevation Data

Water tank replacement funded by Rural Development – NEPA Compliance – Rolling Hills Mutual Water Company

Potential wetland mitigation bank site – biological and wetland inventory – Shasta County

Glass electrical insulators used in mining operations circa 1930 – Archaeological Inventory

Test Pit TP15 - Location - upland swale - Army Corps of Engineers permit application submittal.

Bridge replacement project – BMP inspections – Los Molinos

Seasonal habitat – foothill yellow-legged frog – Buzzard Roost Road Bridge Replacement Project – Shasta County

Is there still gold in them hills? – Washington Mine – SMARA Compliance – French Gulch

Bridge pile driving – noise monitoring – CEQA compliance – Fall River, Shasta County

Early spring bloom of wetland plants, creeping spikerush and two-horned downingia, within restored vernal pool

Freshwater wetland creation – Elk Valley Road Widening – Del Norte County

Viewshed analysis for new CHP communication tower in Mono County – green overlay indicates locations from which tower is visible – California Department of General Services

Cluster of flowers on a blue elderberry, host plant of the federal threatened valley elderberry longhorn beetle - Botanical Survey - Shasta County

Juvenile foothill yellow-legged frog – yellow coloration evident on back legs – wildlife survey – Buzzard Roost Road, Shasta County

Wastewater system schematic – Municipal GIS – City of Mount Shasta

Vernal Pool Tadpole Shrimp Exoskeleton - proposed mitigation bank site on Millville Plains - Shasta County

Business end of UltraCam X – ENPLAN 700 square mile high resolution aerial imagery collection – multispectral and 6” pixel resolution

Pacific treefrog tadpole at the Buzzard Roost Bridge Replacement Project at Cedar Creek - Wildlife Survey - Shasta County

Our LiDAR – typical bare earth hillshade or shaded relief – the ultimate in earth surface visualization

Reporter examines eight UltraCam X lenses collecting high resolution multispectral aerial imagery for ENPLAN – Shasta, Tehama, Siskiyou private lands core region

Obsidian projectile points found at the proposed North Fork Ranch subdivision site - Archaeological Inventory - Shasta County

UltraCam X and platform pictured were responsible for collecting our 2008 and 2010 high-resolution coverages – manufactured by Austrian company Vexcel owned by Microsoft– our favorite camera

Evaluating topographic barriers/hydrologic connectivity in vicinity of vernal pool known to support Endangered shrimp species – ENPLAN LiDAR digital elevation data used as base

Dust suppression in action – CEQA compliance – Sacramento River bridge demolition – Shasta County

Collecting soil samples to determine the presence/absence of eggs of federally listed species of vernal pool branchipods in a wetland on a proposed subdivision site - vernal pool branchiopod surveys -

Created wetlands – Mitigation and Implementation Plans – Willow Glen Estates

Historic adit – within Washington Mine Reclamation Plan study area – French Gulch

Eagle Lake Marina reconstruction - CEQA compliance - Spalding, Lassen County

“Order is the foundation of all things good.” – Edmund Burke

Recording limits of jurisdictional waters at a proposed subdivision site - Wetland Delineation - Shasta County

Marina on the North Coast – municipal GIS – our high resolution orthoimagery used as base for compilation and operation – City of Fort Bragg

Stream diversion for railroad bridge repair project – environmental compliance documentation – Thomes Creek, Tehama County

Governor Schwarzenegger – Redding Veterans Home groundbreaking ceremony – CEQA Mitigation Monitoring

Test Pit TP15 - upland swale - Army Corps of Engineers permit application submittal.

Botanical survey – environmental constraints analysis for a planned industrial facility – Mount Shasta

Put to the test – our SWPPP and implementation hold up under a storm

Thermalito Afterbay, diversion and Oroville Reservoir - MapPort Asset Management System - Richvale Irrigation District

Northern California Veterans Cemetery site plan – CEQA/NEPA compliance

Botanical Survey – sampling freshwater emergent vegetation in constructed wetland

Wastewater treatment pond renovation funded by USEPA and Rural Development – delineation and permitting assistance – Fort Bidwell Reservation

Safe Routes to Schools – map for parents and students to encourage walking to and from school – City of Shasta Lake

Mill tailings thickener – Washington Mine -- SMARA Compliance – French Gulch

Wastewater pond colonized by western pond turtle – survey and relocate turtles – Placer County

Boxes contain vernal pool soil samples to be analyzed for presence of federally listed branchiopod eggs - Shasta Lands Mitigation Bank – Shasta County

Egret foraging in restored vernal pool – habitat for Threatened vernal pool fairy shrimp and Endangered tadpole shrimp – planning, implementation, supervision and monitoring by ENPLAN

Pit River bridge replacement – compliance support – funded through Caltrans Local Assistance program – Fall River Mills

Applying bonded fiber matrix after re-establishing vernal pool bottom – Shasta County

Irrigation flow control structure – Asset Management System GIS – Los Molinos Mutual Water Company – Tehama County

Recording archaeological resources eligible for listing in the National Register of Historic Places (NRHP) and California Register of Historic Resources (CRHR) – northeastern California

CalFire Ishi Conservation Camp –reconstruction proposed – CEQA compliance – Tehama County

Measuring stem diameters – valley elderberry longhorn beetle exit-hole survey

Visual simulation of CHP communications tower – EIR – Truckee

Wastewater treatment clarifiers next to Pacific Ocean – GIS-based Infrastructure Asset Management System – City of Fort Bragg

Vernal pool restoration – comeback of two-horned downingia – Shasta County

Visualization output using our LiDAR digital elevation data – canopy layer color shaded relief

Wastewater treatment pond renovation funded by USEPA and Rural Development – delineation and permitting assistance – Fort Bidwell Reservation

Scoping Meeting – Initial Study (IS) and Environmental Assessment (EA) – Northern California Veterans Cemetery

Ukiah Air Attack Base Relocation – Environmental Impact Report (EIR) – Mendocino County

Wetland delineation mapped on our 2010 high resolution imagery and LiDAR digital elevation model (DEM) data followed by field truthing and evaluation

Pacific treefrog concealed from predators by its coloration - Wildlife Survey - Shasta County

Silt fence and erosion control blankets – Storm Water Pollution Prevention Plan (SWPPP) and monitoring – Construction General Permit (CGP)

Phase I ESA – site inspection

Northern Pacific rattlesnake - patiently waiting at a ground squirrel burrow entrance – encountered during wildlife survey

Rice fields, irrigation canals, turnouts, and drainage ditches – MapPort geospatial asset management system -- Richvale Irrigation District – Butte County.

Flowering elderberry – host plant of the Threatened valley elderberry longhorn beetle – botanical survey and mitigation monitoring

Effluent evaporation pond liner used to prevent groundwater contamination – EIS – Eagle Lake Basin

Eagle Lake Marina reconstruction – CEQA compliance – Spalding, Lassen County

LiDAR shaded relief of rice fields - MapPort Asset Management System - Richvale Irrigation District

Color bare earth hillshade with contours overlaid using our LiDAR digital elevation data

Resident bat to be relocated – biological impact mitigation – Sacramento River Bridge Replacement

Airport Road bridge replacement – Caltrans Local Assistance program – Sacramento River, Anderson

Low-income housing funded by Rural Development – NEPA compliance – Red Bluff

Milling slab used by the Atwamsini Band of the Pit River Tribe – CalFire Intermountain Conservation Camp Replacement – Lassen County

Screening for archaeological resources near Eagle Lake – Environmental Impact Statement (EIS) – Spalding CSD Wastewater System – Lassen County

Chipped basalt core used prehistorically for tool production – Archaeological Inventory

Mapping an exurban water distribution system with Trimble GPS – Shasta Community Services District