ML20080G066

NPDES Noncompliance Notification:On 941213,sample Collected at Discharge Point 001A Exhibited Elevated Ph of 9.5 S.U. Caused by Biological Activity.Permit Amend Submitted Deleting Ph Limitations for Outfall 001A

ML20080G066
Person / Time
Site:	Fort Saint Vrain
Issue date:	12/13/1994
From:	Lindt E PUBLIC SERVICE CO. OF COLORADO
To:
Shared Package
ML20080F999	List: ML20080F992 ML20080G059 ML20080G066 ML20080G071
References
NUDOCS 9502030045
Download: ML20080G066 (1)

Text

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NPDES DISCHARGE PERMIT NONCOMPLIANCE REPORTING FORM Date: 12/13/94 Applicable Permit No.: CO-0001121 Discharge No.: 001 A

1. GENERAL Company: Public Service Comoany of Colorado Mailing Address: P.O. Box 840 Denver. CO 80201 Plant Name: Fort St. Vrain Station Plant imcation: Near Platteville. Colorado County: Weld II. NONCOMPLIANCE REPORT A. Description and Cause of Noncompliance: A sample collected at discharge point 001A at 1:00 p.m. on 12/13/94 exhibited a pH of 9.5 s.u. The cause of this elevated pH is biological (photoplankton) activity in the farm pond. Water discharged into the pond from the Goosequill Ditch has a pH less than 9.0 s.u.

B. Noncompliance Period:

Started: A.M. 1:00 P.M. 12/13/94 Date Ended: A.M. P. M . Date C. Action Taken to Reduce, Eliminate, Prevent: A year-long study was implemented on May 1993 to determine the causes of high pH in the 001 A outfall from the farm pond. This study was completed on 9/30/94 and submitted to the CWQCD. The conclusion of the study was that elevation of pH across the farm pond was related to biological (photoplankton) activity. A permit amendment was submitted for public notice in November 1994, which will delete the pH limitations for outfall 001 A.

D. Person Initiating Report: Eldon Lindt Signature: [Li ih E. Water Quality Control Division Notification Requirements:

Telephone (24 hrs.): 12/13/94 Date Ms. Kathleen Kalamen Notified 02:47 p.m.

Written (5 days): 12/13/94 Date Notified StJitMIT REPORT TO:

515. Kathleen Kalamen Regional Adminirtrator Colorado Department of Public ilcalth and Environment U.S. EPA Water Quality Contsul Division One Denver Place, Suite 500 Monitorina & Enforeciment Swtion 99918th Street SWMC 000 Cherry Creek Drive South Denver, CO 80202-2405 Den,ce, CO N0222-1530 Atta.: Enforcement - Permit Program in the event of nonompliance for the FSV Station, a verbal report must he made to the Nuclear Reaulatoey Cosamine on m a.

by the FSV shift supervisor (620-1990) within four hours after verhally notifying the Water Quality Control Divis' Contacted the FsV shiA superusor at 02:48 p m. on 12/13/94.

9502030045 950124 PDR ADDCK 05000267 S PDR