HomeMy WebLinkAboutDERR-2024-007796Stakeholder Forum Meeting
Utah Department of Environmental Quality
March 2004
Jordan Valley Water Conservancy District
March 2004
Southwest Groundwater
Remediation and Treatment Project
Reverse Osmosis ByProduct Disposal
Alternatives
Background
• Zone A – high sulfate, low pH
• Zone B – moderately high
sulfate
Groundwater contamination
investigations
1985 to
Present
Groundwater contamination
caused primarily by mining
practices
18901990
ZONE A AND ZONE B SULFATE PLUMES
Background
• Jordan Valley Water Conservancy District
(JVWCD) is a public water supply agency
• JVWCD develops and delivers municipal water
supplies to 19 member municipalities/agencies
in Salt Lake and Utah Counties
• Groundwater contamination is in JVWCD’s
service area
• JVWCD, KUCC and UDEQ worked together to
formulate the Consent Decree
• JVWCD has had an ongoing interest in the
groundwater contamination
Cont..
Background
• $28 million letter of credit for Affected Area
from Kennecott
• $9 million cash trust fund for Lost Use from
Kennecott
Consent Decree approved, and
Trust Fund created, consisting of:
1995
1) Contain the contaminated groundwater zones
2) Remediate the aquifer
3) Place water to beneficial municipal use
Consent Decree authorizes the Trustee to use the
funds for a 40 year project that will:
1995
Cont..
Background
Cont..
The cash trust fund can be used by the
Trustee to restore, replace or provide the
equivalent of the lost resource
1995
The Consent Decree provides for credits
(against letter of credit) to Kennecott if
Kennecott provides municipal quality
water through treatment of contaminated
water to a municipal and industrial water
purveyor
1995
Background
Substantial review of Joint Proposal by
Technical Review Committee
consisting of state agencies, federal
agencies, local municipalities, and
environmental interests
1999 2003
JVWCD and KUCC submit a Joint
Proposal for a project which would
accomplish the objectives of the
Consent Decree
1999
Cont..
Background
Cont..
Trust fund escalates in value to
$61.3 million
Cost and value of Joint Proposal is
$103.9 million
Remaining funds, provided by
KUCC and JVW CD
2003
Joint Proposal modified and
resubmitted three times
20002003
Kennecott/JVWCD Joint Proposal
Three Main Components:
1. Zone A Facilities
– Funded by Kennecott, with letter of credit reduction
– Process enhancements funded by JVW CD
– Constructed, owned and operated by Kennecott
– Produce 3500 acft/yr of Municipal Quality Water
– From Kennecott water rights
2. Zone B Facilities
– Funded by Kennecott, with letter of credit reduction
– Process enhancements funded by JVW CD
– Constructed, owned and operated by JVW CD
– Produce 3500 acft/yr of drinking water
– From JVW CD water rights
Kennecott/JVWCD Joint Proposal
3. “Lost Use” component
– Funded by JVWCD and cash trust fund
– Constructed, owned and operated by
JVWCD
– Produce 1235 to 2300 acft/yr of drinking
water
– From JVWCD water rights in shallow aquifer
Cont.
Kennecott/JVWCD Joint Proposal
• All water delivered to the public in the
Affected Area through JVWCD system
• JVWCD has a water distribution system
to serve the public in the Affected Area
• JVWCD currently delivers water to the
public in the Affected Area
Cont.
Current Status
• Consent Decree and Trust Fund were
established by federal court in 1995
• Public comments on the Joint Proposal have
been received by the Trustee
• JVWCD has withdrawn UPDES permit for Zone
B and Lost Use byproduct water discharge to
Jordan River
• Stakeholders’ input and expert analysis of Zone
B and Lost Use byproduct disposal alternatives
are desired prior to proposing an alternate
disposal plan to the Trustee
Zone B and Lost Use Reverse Osmosis
(RO) ByProduct
Feed W ater
Byproduct W ater (15% to 20%)
Product W ater
(Drinking W ater)
( 80% to 85%)
Zone B, Lost Use and Phase 2
RO Byproduct Water Characteristics
3847 8,240 W eighted
Average
47 8,000 876 1.95 Phase 2
1,662 3.70 Totals
47 8,200 229 0.51 Lost Use
25 8,300 557 1.24 Zone B
Selenium
Concentration
(μg/L)
TDS
Concentration
(mg/L)
Flow
Rate
(gpm)
Flow
Rate
(cfs)
Zone B/Lost Use Byproduct W ater Disposal
Zone B/Lost Use Facilities
Other Discharges
• RO byproduct water will be discharged nearly
continuously (the subject of this Stakeholders
Forum meeting)
• Other startup and maintenance discharges of
short duration will occur
• The quality and characteristics of these other
discharges are different from RO byproduct
water
• Some of these other discharges will occur at the
plant site to the Jordan River
Description of Need
• 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 by
product from a shallow groundwater
treatment project.
Zone B/Lost Use Byproduct W ater Disposal
Factors for Selection of Disposal Alternative
• To be developed from stakeholder process
• Needed for evaluation of disposal
alternatives
• JVWCD will consider factors in evaluation
of alternatives
Zone B/Lost Use Byproduct W ater Disposal
Anticipated Schedule
Zone B/Lost Use Byproduct W ater Disposal
Stakeholder meeting #2: receive comments on
selection factors, and alternatives
March 31
JVW CD proposes disposal alternative to Trustee April 29
JVW CD discusses recommended alternative with
its Board of Trustees
April 28
Stakeholder meeting #3: Presentation and
discussion of alternatives analyses and
recommended alternative
April 14
Alternative evaluations by JVW CD and
consultants/ experts commissioned by JVW CD
April 1 14
Stakeholder meeting #1: discuss need, selection
factors, and identify other disposal alternatives.
March 17