HomeMy WebLinkAboutDERR-2024-007798Jordan Valley Water Conservancy District
April 28, 2004
Southwest Groundwater Treatment
Project
Recommendation to Modify Joint Proposal
ZONE A AND ZONE B SULFATE PLUMES
Joint Proposal
• From JVW CD and Kennecott Utah Copper Corp (KUCC)
to State Natural Resource Damage (NRD) Trustee
• Modified several times during 1999 – 2003
• Zone A (deep groundwater, by KUCC) 3,500 AF
• Zone B (deep groundwater, by JVW CD) 3,500 AF
• Lost Use (shallow groundwater, by JVW CD) 1235 –
2300 AF
8235 – 9300 AF
Joint Proposal Funding (a)
($millions)
$103.9 $23.3 $19.3 $13.2 $48.1 TOTALS
$19.5 $6.3 $0 $13.2 (c) $0 Lost Use
$39.7 $11.1 $4.5 $0 $24.1 Zone B
$44.7 $5.9 $14.8 $0 $24.0 Zone A
TOTALS JVWCD KUCC Lost
Use
ILC ( b) Project
Components
(a) In October 2002 dollars. Includes both construction and O,M&R cost NPV
for 40 years.
(b) Irrevocable letter of credit (September 2003 value).
(c) $0.7 million to UDEQ for Trustee expenses.
Joint Proposal 200304 Activities
• AprilJuly 2003: JVWCD received permit for
reverse osmosis (RO) byproduct water
discharge to Jordan River
• Aug–Nov 2003: Trustee held public information
and comment meetings
• Jan 2004: JVWCD withdrew its Jordan River
discharge permit
• JVWCD Board asked staff to seek public input in
RO byproduct water discharge alternatives
Zone B and Lost Use Reverse Osmosis By
Product
Feed W ater
Byproduct W ater (15% to 20%)
Product W ater
(Drinking W ater)
( 80% to 85%)
Southwest Groundwater Stakeholder Forum
• Convened by Trustee (see Attachment 1)
• Membership:
– W ell owners (2)
– Environmental representatives (2)
– Duck clubs (1)
– Municipalities (6)
– Federal agencies (3)
– State agencies (3)
– Project proponents (2)
Forum Meeting No. 1
Established Project Objectives:
• Joint Proposal Project:
Select an alternative for disposal of Zone
B and Lost Use RO byproduct water
• JVWCD Future (Phase 2) Project:
Select an alternative for disposal of RO
byproduct from a shallow groundwater
treatment project
Forum Meeting No. 1
(cont’d)
810
333
1274
2417
1.24
0.51
1.95
3.70
Zone B
Lost Use
Phase 2
TOTALS
AF/yr Flow Rate
(cfs)
Byproduct w ater:
Forum Meeting No. 1
Established Criteria for selecting Alternative(s):
1. Meets project objectives
2. Keeps within budget
3. Meets project time constraints
4. Environmentally sound
5. Technically feasible
6. Allows all organizations to meet their objectives
7. Allows public water delivery after 40 years
8. Compatible with JVW CD Phase 2 project (additional shallow
groundwater
9. Legal/perm ittable
(See Attachment 2)
Forum Meeting No. 2
Developed discharge/disposal alternatives:
A. No action
B. To Jordan River (withdrawn)
C. Deep well injection
D. To Great Salt Lake
E. To KUCC GSL outfall pipe
F. To KUCC Tailings Impoundment (Zone B only)
G. Evaporation
H. Distillation
I. To KUCC Tailings Pipeline (Zone B only)
Forum Meeting No. 2
Alternatives (cont’d):
F.1 Zone B to Tailings Impoundment; Lost Use to GSL
F.2 Zone B to Tailings Impoundment; Lost
Use to KUCC GSL outfall
F.3 Zone B to Tailings Impoundment; Lost
Use to distillation
I.1 Zone B to Tailings Pipeline; Lost Use to GSL
I.2. Zone B to Tailings Pipeline; Lost Use
to KUCC GSL Outfall
I.3 Zone B to Tailings Pipeline; Lost Use to distillation
Forum Meeting No. 2 (cont’d)
• Concluded Alternative A (no action) does
not meet project objectives, but is uniquely
the JVWCD Board’s decision
• Alternatives B and G were eliminated
Forum Meeting No 3
• Eliminated Alternative C (Deep Well
injection)
• Cost estimates were presented
• JVWCD presented cost participation limits
• Many technical studies were presented
Important Factors for Additional Funding
1. Reasonable unit cost (not adversely
impact water rates)
2. Additional capital not adversely impact
District’s 10year financial plan
3. Additional capital not displace Zone A
water rate discount
Cost Limit Conclusions
• Not exceed $210/AF
• Additional capital not exceed $3 million
(see Attachment 3)
Zone A Water Rate Discount
FY 0304
• $288 per AF
• Comparable pumped rate
(Pressure Zone D): $349 per AF
• 17% discount in FY 0304. Will be
updated by formula each year.
• Each additional $1.0 million in capital
requirement reduces discount by $9.40
per AF
Cost Summary
$195 $928 $209 $207 $201 $157
Unit Cost
($/acre feet)
($.8) $15.7 $1.3 $3.5 $2.9 $0
Additional
Capital Cost
($million) (a)
$7.0 $93.9 $8.2 $10.4 $9.7 $4.6
NPV Cost
($million)
$72,000 $3,200,000 $25,000 $25,000 $20,000 $0
Operating Cost
($/year)
$5.6 $22.1 $7.7 $9.9 $9.3 $4.6
Capital Cost
($million)
Zone B to
Tailings
Pipeline
(I)
ZONE B
ONLY
Distillation
(H)
Zone B to
Tailings
Impoundment
(F)
ZONE B
ONLY
To KUCC
GSL Outfall
(E)
To
GSL
(D)
To
Jordan
River
(B)
ALTERNATIVE
(a) Additional capital cost is relative to $6.4 million
Cost Summary
$443 $235 $231 $466 $256 $252
Unit Cost
($/acre feet)
$31.3 $5.6 $5.2 $35.3 $9.0 $8.6
Additional
Capital Cost
($million)
$37.7 $13.6 $13.1 $40.4 $16.1 $15.6
NPV Cost
($million)
$1,172,000 $ 81,000 $79,000 $1,125,000 $34,000 $33,000
Operating Cost
($/year)
$14.5 $12.0 $11.6 $18.1 $15.4 $15.0
Capital Cost
($million)
Zone B to
Tailings
Pipeline
Lost Use
Distillation
(I.3)
Zone B to
Tailings
Pipeline
Lost Use to
KUCC GSL
Outfall
(I.2)
Zone B to Tailings
Pipeline
Lost Use to GSL
(I.1)
Zone B to
Tailings
Impoundment
Lost Use
Distillation
(F.3)
Zone B to
Tailings
Impoundment
Lost Use to
KUCC GSL
Outfall
(F.2)
Zone B to
Tailings
Impoundment
Lost Use to
GSL
(F.1)
ALTERNATIVE
(a) Additional capital cost is relative to $6.4 million
Forum Meeting No. 3 (cont’d)
• Eliminated all but three alternatives
(D, F and I remained)
Forum Meeting No. 3 (cont’d)
• Discussed environmental soundness.
Selenium effects in GSL are dominant
issue.
• Four scientific studies about Selenium in
GSL were presented; others were
submitted.
• Opinions and findings on Selenium differ.
Recommendations
1. Pursue project with Zone B byproduct water
discharge to Tailings Impoundment
2. Defer Lost Use project components in order to
further study byproduct discharge effects to
the GSL. (Some portions of the Lost Use
project that do not produce byproduct water
can proceed now with the Zone B project.)
Recommendations
3. Assemble and participate in a Selenium
studies steering committee
4. Adjust Joint Proposal and project
agreements for submission to Trustee