Talen Montana funds ongoing Colstrip water monitoring

Talen Montana, LLC continues to fund long-term hydrological and water-quality monitoring of Cow and Pony Creek drainages through Pacific Northwest National Laboratory and partners under Stipulation 12(d). The engagement covers ongoing data collection and analysis of groundwater and surface-water conditions downgradient of Colstrip Units 3 and 4 effluent holding pond.

Scope & details

The full contract record, as filed.

Contract type

PROFESSIONAL_SERVICES

Contract term

Monitoring program begun 1984; data reported through 2023

Renewal

Study initiated in 1984, suspended 1987–1989, and resumed in 1989 with continuing annual monitoring; no explicit end date stated.

Document type

Report

Source document

Pacific Northwest National Laboratory 2023 Hydrological/Water Quality Study Report

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Montana Board of Land Commissioners Minutes 2026-08-17

APPROVED

Montana Secretary of State|Board of Land Commissioners, MontanaAug 17, 2026

Montana Board of Land Commissioners AgendaPacket 2026-08-17

APPROVED

Montana Secretary of State|Board of Land Commissioners, Montana$4,000,000.00Aug 17, 2026

Pacific Northwest National Laboratory 2022 Hydrological/Water Quality Study Report

ONGOING

Montana Department of Environmental Quality, MontanaMay 1, 2023

Pacific Northwest National Laboratory Report 2021 Hydrological/Water Quality Study May 2022

ONGOING

Montana Department of Environmental Quality, MontanaMay 1, 2022

DEQ Units 1&2 Evaporation Ponds Remedy Evaluation Report Sept 2020

APPROVED

Montana Department of Environmental Quality, Montana$285,438,000.00 (financial assurance with 3% discount rate); $339,566,484.28 (without discount rate); Talen’s internal estimate $191,054,000.00Sep 18, 2020

Frequently asked questions

Common questions about this contract, answered from the record.

Who was awarded the professional services contract by Montana Department of Environmental Quality?

Talen Montana Llc was awarded this professional services contract by Montana Department of Environmental Quality, as recorded on May 1, 2024.

What type of contract is this?

This is a Professional Services contract, documented as a report record.

Where was this contract approved?

This contract appears in Pacific Northwest National Laboratory 2023 Hydrological/Water Quality Study Report (Report), dated May 1, 2024 from Montana Department of Environmental Quality. Civic IQ extracts contract records directly from agency meeting documents and solicitations.

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Talen Montana funds ongoing Colstrip water monitoring

Scope & details

Related contracts

Frequently asked questions

Who was awarded the professional services contract by Montana Department of Environmental Quality?

What type of contract is this?

Where was this contract approved?

What other contracts does Talen Montana Llc hold?

What is Montana Department of Environmental Quality currently buying?

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