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Tenmile Creek Gage Re-initiation

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State & Local

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

AI Contract Overview

The project involves reactivating the historic USGS surface water gage #11475700 on Tenmile Creek near Laytonville, California, to restore continuous real-time monitoring of streamflow and water temperature, with data made publicly accessible through the California Data Exchange Center. The gage, originally operational from 1957 to 1977, measures discharge for a 50.3-square-mile watershed within Hydrologic Unit Code 18010106 in Mendocino County. Tenmile Creek is a critical habitat for all three ESA-listed Pacific salmon species—Chinook Salmon, Southern Oregon/Northern California Coho Salmon, and steelhead trout—and is recognized for having historically supported more suitable habitat than even the upper South Fork Eel River, one of the last strongholds for SONCC Coho populations. The reactivation aims to fill long-standing data gaps and provide essential hydrologic information for ecosystem management. This effort serves a broad spectrum of stakeholders, including resource managers and restoration practitioners who rely on accurate flow data to evaluate watershed health, time conservation interventions like the Black Oak Ranch Water Conservation and Flow Enhancement Project, and design initiatives that improve stream function and resilience. Natural resource agencies depend on the data to enforce habitat protections, particularly during critical low-flow periods that impact fish survival. Permitted cannabis cultivators benefit from access to verified streamflow records to ensure lawful water diversions, align operations with environmental flow requirements, and demonstrate regulatory compliance and responsible stewardship. The project is managed by the California Cannabis Program under the Fish and Wildlife Executive, with primary contact Kelly Souza and project partner Dana Stolzman of CalSalmon, and is positioned to enhance science-based decision-making across land and water use in the region.

General Info

Reactivating USGS gage on Tenmile Creek to monitor streamflow and temperature for salmon habitat and regulatory compliance.

Agency

California → Fish and Wildlife (Executive), Cannabis Program

NAICS

541380 - Testing Laboratories and ServicesView NAICS

Place of Performance

Highway 101, CA, 95454

Set-Aside

NONE

Documents

(1)

NOE_Tenmile_Souza_flattened

PDF

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Timeline

PostedSep 23

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Organization & Contact Information

AgencyCalifornia → Fish and Wildlife (Executive), Cannabis Program

Contacts2 people available

OfficeN/A

Organization / Agency

California → Fish and Wildlife (Executive), Cannabis Program

Office AddressN/A

Contacts

Kelly SouzaSenior Environmental Scientist, Supervisor

contact@example.gov

+1 (555) 000-0000

Dana StolzmanExecutive Director

contact@example.gov

+1 (555) 000-0000

Full Description

The purpose of this project is to reactivate a historic United States Geological Survey (USGS) surface water gage (#11475700) at Tenmile Creek near Laytonville, CA, and record high-quality stream gage data and water temperature in real-time and available for the public on the California Data Exchange Center (CDEC). This gage was active from October 01, 1957, to December 14, 1977 and recorded daily discharge (cubic feet per second) for a drainage area of 50.3 square miles in Mendocino County (Hydrologic Unit Code 18010106). Tenmile Creek supports all three ESA-listed Pacific salmon species including Chinook Salmon, Southern Oregon/Northern California Coho (SONCC) Salmon and steelhead trout, and the National Marine Fisheries Services intrinsic potential habitat maps indicate that Tenmile Creek had more historically suitable habitat than the upper South Fork Eel River, which currently has one of the last functioning SONCC Coho Salmon meta-populations (NMFS 2014). This project is crucial for a wide range of stakeholdersincluding resource managers, restoration practitioners, natural resource agencies, and cannabis cultivatorsbecause it provides reliable, long-term hydrologic data essential for informed decision-making. For managers and restoration practitioners, continuous flow data supports efforts to assess watershed health, track timing and magnitude of instream flow relative to restoration (e.g. the recent Wildlife Conservation Board-funded Black Oak Ranch Water Conservation and Flow Enhancement Project), and plan projects that enhance stream function and resilience. Natural resource agencies rely on gage data to protect aquatic habitats and species, particularly during low-flow periods critical to fish survival. For permitted cannabis cultivators, access to accurate streamflow records helps ensure compliance with water diversion regulations, align operations with environmental flow needs, and demonstrates responsible water use. Overall, restoring this data stream bridges scientific knowledge gaps and supports sustainable land and water management across the region.