GENERAL50647

• Permit No: M1983194
• IBM Index Class Name: General Documents
• Doc Date: 8/5/1987
• Doc Name: MEMORANDUM-WOLF RIDGE CORP MINE PLAN FOR A NAHCOLITE SOLUTION MINE BUREAU OF LAND MANAGEMENT
• From: DIV OF LOCAL GOVERNMENT
• To: EIS REVIEWERS
• Media Type: D
• Archive: No

TABLE 2-2 (continued)
SUMMARY OF IMPACTS
in
Resource No Actlon (Plot Phuat)
Proposed Acdorr/125,000 TPY 50,000 TPY
500.000 TPY
Water Resounxs
Water Quantity/ No measurable reduction of
Water Rights sveam bow.
Water Quality No Significant Impact
About 3.2% reduction in average
daily Oow from Yelow Crcek.
.3% reduction from Piceance
Creek. Any depletion h consid-
er.'. ~;gri.`.vant besuse of over
aBontion of surface water in
the Piceance Basin.
About 2% reduction in average
daily Oow from Yellow Creek.
.1 % reduction from Piceance
Creek. Considered siguifitanL
Approximately 20% increase io
the area of the base of the
groundwater system in contact
with saline minerals within the
lease tsar. This is a I % in-
crease in the total area of the
aquifer system in contact with
saline minerals in the Piceance
Basin. This is a locally signif-
icant impact and could be
regionally siguificanl
Approximately 10% incense in
the area o[ the base of the
groundwater system in contact
with saline minerals within the
lease tsar. This is a 0.5%
increase in the total area of
the aquifer system in contact
with sauce minerals in the
Picesnce Bssin. This is a
locally signifitant impact.
About 15.3% reduction in average
daily Dow from Yellow Creek. 1.9%
reduction from Rcesace Creek.
Considered significant-
Approximately 80% incense io the
area of the base of the ground-
water system in contact with
saline minerals within the lease
traar. This is a 4% increase in
the total area of the aquiter
system in contact with saline
minerals in the Piceance Basin.
Tha is a loally signifitant and
could be regiomlly significant
impact.
Soils Undeterminable loss o[ soil from
wind and water erosion on dis-
turbed areas.
Alteration of natural soil hor-
irora; decease in diversity of
soil communities u a result of
disturbance on up to 43 acres.
Same
Same on up to 257 aces
Same
Same on up to 118 acs
Same
Same oe up to 960 aces
Vegetation Natural vegetative communities
lost to sur6ce disturbance on
up to 43 acm.
Reclamation effort expected to
return disturbed areas to pro-
duction levels equal to or
greater thin prediuurbance.
Remnant Vegetation Association
(RVA) not affected
Same oo uP to 257 aces
Same
78% of RVA destroyed
Same on up m 118 acres
Same
Same as Proposed Action
Same on up W 960 acres
Same
89% of the RVA destroyed