2021-05-06_HYDROLOGY - M1977493

• Permit No: M1977493
• IBM Index Class Name: HYDROLOGY
• Doc Date: 5/6/2021
• Doc Name: Correspondence
• From: Climax Molybdenum
• To: DRMS
• Email Name: DMC
• Media Type: D
• Archive: No

c o L o R A D o Five day reporting form
AT. Water
Duality Control Division
Department of%blic Health&Environment Incident / spill / sanitary sewer overflow release
Use this form to report incidents impacting waters of the state
The Water Quality Control Division distinguishes between reporting requirements for incidents that occur at entities
operating under a Colorado Discharge Permit System (CDPS) permit and those resulting from non-permitted activities.
Permitted activities - Reporting and management of non-compliance incidents and spills that occur as a result of
permitted activities should be performed in accordance with the specific requirements in the notifications section of
your permit. You may use this form to submit the information requested in the permit.
Non-permitted activities - In the case of an activity where a permit does not address reporting of, or response to, a
given spill please submit a written summary of the event, your response, and clean up efforts to the division within five
working days of the date of the event. This form is provided for your convenience. If you have any questions please
contact the division's field services staff person assigned to your spill case.
Prior to the five working day deadline you may request an extension to submit the report if needed for sampling
analysis or other reasons. To request an extension please send an email to the division's field services staff person
assigned to your spill case or to the spill administrator. The field services contact list is available at:
www.colorado.gov/cdphe/wq-inspection-services-contact-us.
Please send the completed form or report with signature to the division's field services spill administrator:
Michelle Thiebaud Telephone: [phone]
222 S. Sixth Street, 232 Fax: [phone]
Grand Junction, CO 81501 Email: [e-mail]
1. Incident background information
r 2021-0165 Date of April 27, 20212 County Summit
(division provided) event
Incident/spill numbe
Type of incident / spill / SSO check one
❑ Sanitary sewer overflow ❑ Potable water/reuse water/ ❑ Biosolids
reclaimed water
❑ Wastewater treatment plant bypass or ❑ Petroleum product ❑ Oil or gas field production spill
upset (authorized outfall point)
❑ Wastewater treatment plant spill or ❑ Chemical ® Other
overflow other than outfall
Estimated volume released 1,800 gallons
Size and depth of area affected Not applicable
Contact information
Potentially responsible party contact name Diana Kelts, Environmental Manager
Potentially responsible party company/agency name Climax Mine
CDPHE Permit number and facility name (if applicable) Incident occurred up-gradient from Outfall 001A identified in the Climax
Mine CDPS Permit No. C00000248
Email address [e-mail] Phone [phone]
2. Incident information: Please provide the following information.
A. Describe incident including source, cause, and location (e.g. address, latitude/longitude).
At 12:30pm on April 27, 2021 an operator maintaining the West Interceptor Ditch road noticed excess water flowing on the road
and into the West Interceptor. At 1:45pm Climax confirmed that the water was coming from the Climax Property Discharge Water
Treatment Plant (PDWTP) influent pipeline located adjacent to the West Interceptor. Site supervision was contacted and the
pump feeding the line was shutdown. Operators at the leak location indicated that flow stopped from the leak at 3:30pm. After
the pipeline was excavated the following day on April 28, 2021, it was determined that the 42" steel pipe had formed a crack at a
welded joint causing the leak. The incident occurred at the Climax Mine located at Fremont Pass- Highway 91 Climax, CO 80429.
The attached map shows the location of the leak.
B. Material released, e.g. untreated wastewater, specific chemical or product, biosolids. Please attach the OSHA Material Safety
Data Sheets for any and all chemicals or products ins ill or release.
pH neutral water from the Mayflower Tailing Storage Facility