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Stage and Rain Gage at Dublin Creek

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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 Zone 7 Water Agency is implementing a project to install a new telemetered gage station within its right-of-way along Dublin Creek in Dublin, California. The primary objective of this station is to collect real-time stage and precipitation data, which will be transmitted to a public and agency data dashboard. The installation includes two pressure transducer probes, a tipping bucket instrument, a datalogger, a modem, a solar panel, and a 12-volt battery. Additional hardware consists of an enclosure box, galvanized pipe mounts, crest stage gages, staff plates, and a tagline/pulley system for flow measurements located 15 to 30 feet upstream of the staff plates. Construction is targeted for Fall 2025 and is expected to take approximately six days, comprising three days for gage housing construction, two days for equipment installation, and one day for surveying and leveling. The installation process involves manually dug concrete footings for the main equipment and the use of a gas-powered post driver for the staff plate and pulley mounts. The project occupies a working footprint of approximately 50 square feet and is categorized as having minimal environmental impact, qualifying for a Categorical Exemption under CEQA Guidelines Section 15301. Project management is overseen by Justin Pascual, with Elke Rank serving as the lead agency CEQA contact.

General Info

Install telemetered gage station in Dublin Creek for real-time stage and rainfall data, minimal environmental impact.

Agency

California → Zone 7 Water Agency

NAICS

237990 - Other Heavy and Civil Engineering ConstructionView NAICS

Place of Performance

Dublin Creek (waterbody) near Amador Plaza Rd., Dublin, CA, 94551

Set-Aside

NONE

Documents

(1)

Notice of Exemption for Stage and Rain Gage at Dublin Creek

PDF•notice-of-exemption

AI Contract Breakdown

Uniform Contract Format

Timeline

PostedAug 14

forecast

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Organization & Contact Information

AgencyCalifornia → Zone 7 Water Agency

Contacts1 person available

OfficeN/A

Organization / Agency

California → Zone 7 Water Agency

Office AddressN/A

Contacts

Elke RankSenior Water Resource Planner

contact@example.gov

+1 (555) 000-0000

Full Description

New telemetered gage station positioned within the Zone 7 right-of-way along Dublin Creek. This gage will allow for stage and precipitation data to be collected and telemetered real-time into a Zone 7 data dashboard viewing website for the benefit of agency staff and the public. The station will be equipped with the following: (2) pressure transducer (PT) probes for measuring stage; (1) tipping bucket instrument for measuring precipitation; datalogger and modem for data telemetry; a solar panel and 12-volt battery for powering the station; protective conduit for the 2 PT probes; mounting hardware equipment; an enclosure box for the instruments; galvanized pipe for mounts; crest stage gages; and staff plates. A tagline/pulley system for flow measurements will be installed 15-30 feet upstream of the staff plates with the static line above the top of bank elevation. The mounting structure for the equipment enclosure box, solar panel and tipping bucket requires that the 2 galvanized pipe mounts be vertically set with concrete in manually dug footings with hole dimensions of 3-4 feet by 1-2 feet wide for each pipe. The (6) 1.5 galvanized pipe mounts for the staff plates and tagline/pulley system will be driven down into the channel bank to adequate depth with a gas-powered handheld post driver. Once construction is complete, the station equipment will be installed within the equipment housing. Ongoing operations and maintenance of this station may require staff to enter the riparian corridor where the PT probes are placed; no impacts are expected from routine operations and maintenance. The overall working footprint dimension for the structures is approximately 50 square feet. This project will have minimal/ no impact on baseline noise and riparian vegetation. The gas-powered post driver pounding into the pipe is expected to be the largest temporary noise contributor to the project, which may emit approximately 100 dBs of noise for 5-10 minutes at a time for mounting the (6) 1.5 galvanized pipes into the left and right banks of Dublin Creek. The protective conduit and staff plate post mountings were strategically chosen to avoid the removal of any riparian vegetation. The target construction date is set for Fall 2025, and it will take approximately 3 days to construct the gage housing equipment, then approximately 2 days to install the gaging and telemeter equipment. Surveying and leveling the station will take 1 day.