1986-05-02_REPORT - C1984065

• Permit No: C1984065
• IBM Index Class Name: Report
• Doc Date: 5/2/1986
• Doc Name: Review of Coal Ridge #1 AHR Comments
• From: DMG
• To: Jeff Deckler
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

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O, DEPARTMENT OF NATURAL RESOURCES
O * David H.Getches,Executive Director
Mks/NE M� �* MINED LAND RECLAMATION DIVISION
1�876* DAVID C.SHELTON, Director
Richard D.Lamm
Governor V
DATE: May 2, 1986
.ter- +�• -� ,f< - -
TO: Jeff Deckler r�-�-�`1 `r f �r °4`t
FROM: Dale Plume,"-
RE: REVIEW OF COAL RIDGE #1 AHR, COMMENTS
In general there seems to be a significant amount of ground and surface water
sampling data acquired by Storm King Mines. However, correct me
there,, eems also;to be portions of these data missing; especially in the
years 1982-1984. Certain heavy metals and potentially regulated chemicals may
be missing for various reporting periods. G
I reviewed a letter dated April 6, 1984 sent by MLRD to Storm King that stated ' ..
the ground water baseline monitoring program was inadequate at that time, but
I believe it meant that was because a full year of testing hadn't been done.
I haven't been able to find a letter or commentary record stating why there
are so many data points missing in the 1982-84 years. Finally, the following
list of items relates to possible problems with the AHR reporting accuracy or
possible natural effects.
1 . Well OW-4L in 1984-1985• water seems to be very hard and high in
sulfates; N, ,�
2. Well OW-4L�1983-1984: water is'very hard, high in fates, a
contains trace metals which may exceed various egulatory parameter
standards. These metals are: H - �• ��'
arsenic, cadmium, iron, manganese, molybdenum;
3. Well OW-4L may also have detectf'on limits (minimum detection
limits) set too high for some parameters such as molybdenum,
1 arsenic, mercury, cadmium,. etc. This may be true for some other
wells as well ;
4^•,J, I ��...? �" cam— —A3 �.r _ c,��^tJ��/ .a-. /-/".�_. va..t.:+-+-• !'eu.s.i
4. Well OW-8 shows moderately fair to good water quality. However, �7
this WQ seems to get poorer (especially TDS, SO4) when approaching
k; ; late in 1985 season (August, September) ;�� _
't. 5. Well OW-11 seems to be affected by river stage; consequently, is
probably affected by downward leaching and upward remobilization of
salts (NaCl ) , and may indicate an area of poor irrigation potential ; ` "1, �,,�;�```�
6. Well OW-1j1' baseline shows high iron, manganese, molybdenum,
arsenic, and cadmium at various sampling periods; n
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