HYDRO20677

• Permit No: C1981071
• IBM Index Class Name: Hydrology
• Doc Date: 4/4/2001
• Doc Name: MEMO REVIEW OF SEDIMENTATION POND A INSPECTION REPORT PN C-81-017 4TH QUARTER 1998
• From: DMG
• To: JANET BINNS
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1313 Sherman Sl., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
Interoffice MEMORANDUM
to: Janet Binns
from: Byron G. Wa1kt;F
cc: Dan Hernandez (w/o enclosure)
subject: Review of Sedimentation Pond A Inspection Report
Permit C-81-017, 4'h Quarter 1998
date: April 4, 2001
This review was conducted to determine compliance with Rule 4.05.6(13).
DIVISION OF
MINERALS
GEOLOGY
RECLAMATION
MINING•SAFETY
Rill Owens
Governor
Greg E Watcher
Executive Duenor
Michael B. long
Drvrs~on Director
Was the inspection report submitted promptly as required by the Division? The reports are to be
submitted in accordance with 30 CFR 77.216-3 [Permit Application Package (PAP) page 816-44
paragraph 816.45([)]. This reference requires reporting promptly [CFR 77.216-3(c)]. Rule
4.05.6(13) is more descriptive (and perhaps more demanding), requiring reports be submitted
promptly on a quarterly or annual basis, as required by the Division. During my review of the
PAP, I found no such requirement by the Division. The subject report was submitted on January
8, 2001, and received at the Division on January 10, 2001.
Was the pond inspected for structural weakness? Yes
Was the pond inspected for erosion? Yes
Was the pond inspected for other hazardous conditions? Yes
Is the report certified by a registered engineer? No
Is the sediment level reported? Yes
Is required maintenance reported? Yes (no entry)
Recommend [hat [he PAP be revised to identify the time period and submittal date of the reports.
Some PAPS require submittal of [he reports monthly, by the 30'h of the month following. The
Colowyo reports are due on an annual basis as pan of the Annual Hydrologic Report. If a
revision to the PAP is inappropriate, I suggest a letter of the Division establishing the
requirement (a copy filed in the PAP next to page 816-44).
Recommend certification of the (future) reports by a registered engineer (a registered engineer
cannot certify an inspection in which he did not participate). Complete certifications are
described in the Policy Memorandum of July 13, 1984, but I have noticed common practice in
the Division is to accept a PE stamp as sufficient.
The copy of the report I reviewed is attached. Please let me know if you have any questions.
1 Enclosure, aS SI3Ied Files: Support C-BI-071; C:\WPDOCS\Suppan\C-81-017 Sed Pnd H 1998 3 Qtr Insp Rp tRvw.dou