APPCOR10242

• Permit No: C1984062
• IBM Index Class Name: Application Correspondence
• Doc Date: 10/22/1982
• Doc Name: COLO YAMPA COAL CO ROUTT CNTY NPDES PN CO-00271754
• From: CONOVER MCCLEARN HEPPENSTAIL & KEARNS
• To: WQCD
• Media Type: D
• Archive: No

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Discharge Point CYCC Designation _ Date Comments-•-
Total Iron Daily Samples
2 Mine 1 Pond T 3/19/82 1
7 Mine I Pond F 3/04/82 2; 5
7 Mine 1 Pond F 3/09/92 2; 5
7 Mine 1 Pond F 4/05/82 2; 5
7 Mine 1 Pond F 4/13/82 2; 5
14 Mine 3 Pond E 3/20/81 3; 5
14 Mine 3 Pond E 3/26/81 3; 5
14 Mine 3 Pond E 4/01/81 3; 5
14 Mine 3 Pond E 4/08/81 3; 5
14 Mine 3 Pond E 4/01/82 3; 5
17 Mine 2 Pond K 3/03/81 2; 5
17 Mine 2 Pond K 5/27/81 2; 5
3/09/BZ 4
Total Iron Monthl y Averages
2 Mine 1 Pond T 3/82 1
7 Mine 1 Pond F 3/82 2; 5
7 Mine 1 Pond F 4/82 2; 5
14 Mine 3 Pond E 3/81 3; 5
14 Mine 3 Pond E 4/81 3; 5
17 Mine 2 Pond K 3/81 2; 5
17 Mine 2 Pond K 3/82 2; 5
pH Daily Sample
1 Eckman Pond A 6/22/82 6
* 1. Storm exemption.
2. Structure almost complete; certification to be submitted by
November 6, 1982.
3. Need MLRD approval.
4. Erroneously listed as violation.
5. Iron is major component of TSS.
6. Probable miscalibration of testing instrument.
Exhibit 7 (p. 2 of 2)