DWQ-2025-005030

8/20/2021 State of Utah Mail - UAMPS April Cyanide Non-compliance
https://mail.google.com/mail/u/0?ik=ff31c3d2c5&view=pt&search=all&permthid=thread-f%3A1701013495090717623&simpl=msg-f%3A170101349509…1/1
Daniel Griffin <[e-mail]>
UAMPS April Cyanide Non-compliance
1 message
Eric Hutchinson <[e-mail]>Fri, May 28, 2021 at 8:41 AM
To: Daniel Griffin <[e-mail]>
Cc: Mark Schwartz <[e-mail]>
Hi Dan,

Please see our non-compliance form attached to this email. I have also attached the comparison between if the samples
were swapped and the data we reported. Thanks for your guidance and understanding.

Eric Hutchinson
Compliance Specialist
Utah Associated Municipal Power Systems (UAMPS)
c-[phone]
o-[phone]

2 attachments
ReportedDataComparisonShowingSwappedSampleChanges.docx
125K
UT0025518 Cyanide Noncompliance Report April 2021_signed.pdf
361K

Division of Water Quality (DWQ)
UPDES Program
INITIAL NON-COMPLIANCE NOTIFICATION

OFFICE USE ONLY
Date received: / / Received by: Document No:
via:  Email  Fax  Webportal  Mail  Hand Delivery

Date of Report: DWQ Notification Date: DWQ Contact:
Facility Name: UPDES Permit No.:
Facility Contact: Title:
Phone Number: Email Address:

Incident Type:
 Permit Violation  Order Violation  Anticipated Non-Compliance  Bypass  Overflow
 Other

Date(s) of Non-Compliance: Location of Discharge:
Volume Discharge: gallons Water Body Impacted:
Description of non-compliance(s) and cause(s):

Clean-up Activities:

Explanation:

Resolution/Plan of Resolution:

Has event ceased?  Yes  No If so, when?
Was event due to plant upset?  Yes  No UPDES Discharge Permit limits violated?  Yes  No
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with system
designed to assure that quailed personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who
manage the system or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and
belief, true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine
and imprisonment of knowing violations.

PRINT Signatory Authority Signature Title Date
The Division of Water Quality may request addition information.
5/27/2021 5/26/2021 Dan Griffin
Payson Power Project UT0025518
Eric Hutchinson Compliance Specialist
801-707-0255 [e-mail]
April 2021 40 03'30" x 111 43'45"
3073552 Benjamin Slough via Beer Creek
The permit limits the monthly average of cyanide discharge to a minimum value of 0.0148 mg/L
and in April the Payson Power Project measured an effluent cyanide average of 0.0170 mg/L
N/A
Payson Power Project operators check the cyanide of the incoming tertiary water from Payson City daily as over the last year, spikes of cyanide have come in the tertiary
water to the power plant. Sometimes these spikes come before or after the test is done and therefore make it into the plant water increasing the cyanide to out of
compliance levels. Additionally, on 4/20/21 plant operators believe they mislabeled the samples that were sent to Timpview Analytical Laboratories so the influent water
was tested as the effluent water and vice a versa. On this day plant personnel remember a high influent cyanide level and therefore running the plant on culinary water, so
the high effluent cyanide level did not make sense. If the samples were swapped, then the cyanide average in the effluent for the month of April would have been in
compliance at 0.0137 mg/L.
UAMPS will continue to test influent water cyanide levels and run on culinary water when tertiary cyanide levels are high. UAMPS will continue to adjust this testing to better predict cyanide spikes and therefore knowing when to avoid the tertiary water.
Payson water still has spikes of cyanide
Eric Hutchinson Eric Hutchinson
Digitally signed by Eric HutchinsonDN: cn=Eric Hutchinson gn=Eric Hutchinson c=US United Statesl=US United States o=UAMPS ou=UAMPS e=[e-mail]: I am the author of this documentLocation: Date: 2021-05-27 16:12-06:00 Compliance Specialist 4/27/2021
Reported Data on 4/20/21:          Data with Sample Swap on 4/20/21: