NO. R4-2006-016 A TT A CHMENT State of California

A TT A CHMENT
Region
Angeles
through
Region
Angeles
Los
for
the
River
Chloride
'
Santa Clara
04-004
Resolution
Plan for the Upper
TMDL,
of the Implementation
Plan
3, 2006
Control
Quality
Water
the
to
August
Amendment
Los
NO.
R4-2006-016
RESOLUTION
revision
Board,
Control
Quality
Water
Regional
California
State of California
Quality
Water
Regional
California
the
requires
A)
(CW
Act
Water
Clean
federal
1
The
WHEREAS, the California Regional Water Quality Control Board, Los
Angeles Region, finds that:
'
Control Board (Regional Board) to develop water quality
standards
Agency
Protection
Environmental
U.S.
the
region.
between
its
decree
within
consent
2.
A
found
that are sufficient to protect beneficial usesdesignatedfor eachwater body
Loads (TMDLs)
Daily
Maximum
Total
complete
to
USEPA
the
for all impaired waters within
13 years.
individual
the
of
sum
the
as
in
defmed
as
is
well
as
TMDL
A,
A
CW
the
of
EPA/440/4-91/001).
No.
303(d)
The elementsof a TMDL are describedin 40 CPR 130.2 and 130.7and
USEPA guidance documents (Report
section
3.
directs
order
court
This
1999.
(USEPA), Heal the Bay, Inc. and BayKeeper,Inc. was approvedon March 22,
that
applicable
stipulate
the
further
maintain
and
Regulations
attain
to
130.2).
CFR
necessary
(40
levels
at
set
be
background
must
natural
TMDLs
and
waste load allocations for point sources, load allocations for nonpoint sources
to
This
into
required
is
130.7).
130.6(c)(1).
measures
State
the
A,
USEP
CFR
(40
Plan
implementation
or
130.7(c)(1)).
State
CFR
the
appropriate
with
aJong
Management
Management
Quality
Water
State
the
as
serves
plans.
Control Plan for the Los Angeles Region (Basin Plan). and
statewide
Water Quality
applicable
by
(40
quality
Quality
TMDLs
ofTMDLs
water
and
Water
State
the
establisJunent
Upon
the
i.ncorporate
4.
limitations
narrative 'andnumeric water quality objectives(WQOs), and protect beneficial
uses,with seasonalvariations and a margin of safety that takesinto account
any lack of knowledgeconcerningthe relationship betweeneffiuent
Plans governing the watershedsunder thejurisdiction of the Regional Board.
I
San
of
cities
the
between
Ocean
Pacific
the
into
flows
and
County.
S. The SantaClara River is the largestriver systemin southernCalifornia that
remainsin a relatively natural state. The River originates on the northern
slope of the SanGabriel Mountains in Los Angeles County. traversesVentura
Santa
the
in
uses
land
predominant
The
Oxnard.
and
Buenaventura(Ventura)
watershed
River
Clara
Santa
the
within
industry
agricultural
the
from
Revenue
Clara River watershed include agriculture, open space, and residential uses.
is estimatedat over $700 million annually, and residential use is increasing
rapidly both in the upper and lower watershed.
agricultural
supply
water
(AGR),
7
list
303d
A
Reaches
EP
as
including
list
the
Reaches
Angeles
Los
-
Clarita.
the
of
303d
on
Santa
west
groundwater
USCR,
the
EPA
appear
and
station,
2002
of
uses
on-the
(USCR)
ofFillrnore
gauging
River
cities
Cut
beneficial
Several
(designated
Clara
the
Blue
the
Santa
between
of
line
respectively).
8,
waterbodies
Upper
County
the
of
6
and
impaired
and
of
5
Ventura
upstream
The upper reachesof the SantaClara River include Reaches5 and 6 which are
located
6.
recharge
(GWR),
and rare,
and
Valencia
USCR.
the
of
waters
the
in
concentration
chloride
excessive
to
threatened,or endangeredspecieshabitat (RARE), are listed as impaired due
Saugus Water Reclamation Plants (WRPs), which are owned and operated by
the County Sanitation Districts of Los Angeles County (CSDLAC), are two
The
the
.
the
as
WRP,
WRPs'
the
allocations
the
to
load
of
evaluation
waste
modifications
complete site specific
interim
The
statistical
a
on
for
USCR.
considered
chloride
the
Board
in
discharger
the
for
chloride
Regional
allocations
for
the
provide
load
TMDL
appropriate
chloride.
make
for
based
WQO
and
chloride source reduction,
were
the
studies,
TMDL
meet
the
to
(SSO)
in
necessary,
objective
necessary time to implement
proposed
2002,
a
24,
allocations
waste
include
load
waste
interim
to
October
on
Plan
~terim
included
Basjn
meeting
These
TMDL
the
public
a
WRPs.
proposed
amending
7.
At
major point sourcesthat dischargeto the USCR.
performancein the three yearsprecedingOctober2002.
the
in
chloride
for
TMDL
the
02-018,
Resolution
comments.
written
The Regional Board consideredthe entire record, including written and oral
commentsreceived from the public and the Regional Board staff's responseto
the
8.
USCR, was adoptedby RegionalBoard on October 24, 2002. Resolution 02018 assigned waste load allocations (WLAs)
to major publicly
owned
River.
Clara
Santa
the
of
reaches
specified
to
discharging
treatmentworks (POTW's),minor point sources,and MS4s permittees,
oral
and
written
including
record,
entire
the
USCR
the
in
chloride
for
TMDL
9. At a public workshop on February4, 2003, the StateBoard consideredthe
Board.
-2.
Board
which
State
the
Resolution")
19,2003
"Remand
February
(the
on
meeting
Regional
the
to
2003-0014
public
a
At
TMDL
Resolution
comments.
SWRCB
the
remanded
adopted
written
comments received from the public and the State Board staff's response to the
Remand
the
in
identified
issues
address
to
Plan
Implementation
TMDL
10. In responseto the RemandResolution,Regional Board staff revised the
03-008
WRPs
point
minor
Valencia
Resolution
POTWs,
and
USCR.
the
major
Saugus
in
the
to
for
TMDL
a
(WLAs)
allocations
include
to
allocations
load
Plan
load
waste
waste
Basin
the
assigned
interim
revise
and
contained
to
Resolution. On July 10,2003, the Regional Board adopted Resolution 03-008
sources,and MS4s pennitteesdischargingto specified reachesof the Santa
Clara River.
System
Elimination
Discharge
Pollutant
National
the
TMDL,
chloride
11. During the time that the Stateand Regional Boards were considering the
(NPDES) pennits for the Valencia and SaugusWater Reclamation Plants
(WRPs) were under consideration for renewal by the Regional Board. The
NPDESpermits also included interim discharge limits for chloride which
Castaic
from
NPDES
interim
served
water
the
of
concentration
chloride
the
on
based
are
limits
The
differedfromtheTMDLinterimwasteloadallocations.
WRP,
Saugus
the
for
mg/L
114
and
WRP
Valencia
the
for
mg/L
134
Lake for municipal supply in the Santa Clarita Valley plus a loading factor of
measuredas a twelve month rolling average.The loading values are the
highestmeasuredat eachplant in the last 5 years.
of
A
attachment
in
Plan
Implementation
revised
The
USCR
the
in
TMDL
12. On May 6, 2004, the Regional Board adoptedResolution 04-004 to revise the
interim waste-loadallocations and ImplementationPlan for the chloride
04-
No.
Resolution
of
A
attacmnent
in
specified
as
Plan
Implementation
The
13.
Resolution No. 04-004 supersedesthe hnplementation Plan contained in
Resolution No. 03-008.
completionof severalspecialstudiesthat serveto
004 requires the
groundwater
underlying
and
reaches
downstream
to
impacts
including
USCR,
characterizethe sources,fate, transport,and specific impacts of chloride in the
basins.
14.The first of thespecialstudies,anevaluationof the appropriatechloride
threshold
for thereasonable
protection
of salt-sensitive
agriculture,
Panel (TAP) that issued a "Critical
Review Report"
a
by
"Literature
corroborated
entitled
largely
study,
and
special
This
reviewed
was
of2005.
Advisory
of the
for
of
is
range
mgiL
100
of
similar
concentration
WQO
A
hazard
mg/L.
117
existing
to
chloride
a
The
100
of
TAP.
of
estimate
range
the
by
found
the
best
the
within
that
was
mg/L
falls
found
120
to
crops
LRE
The
avocado
100
within the recommendedrange for the reasonableprotection of salt-sensitive
crops.
3~
15.
LRE.
Technical
(LRE),"
September
in
Evaluation
and
Review
completed
was
"Chloride
entitled
report
This
as
was
Self-
supply
USCR
of2005.
the
CR.
US
the
water
in
November
in
chloride
potable
to
loading
The
of
completed
chloride
sources.
sources
was
identifies
those
of
reducing
source
for
CSDLAC,
largest
the
strategies
as
service
loading.
chloride
of
source
largest
second
as
identified
Water Softeners (SRWS) in the Saugus and Valencia
the
as
were
area
Regenerating
Pollution Prevention, and Public Outreach
Report),"
Source
(Chloride
Plan
identified
well
report, led by the
collaborative
a
study,
special
LRE
the
to
addition
In
16.
Source Identification/Reduction,
17. The secondspecial study requiredby the ImplementationPlan is the
model.
this
The Regional
complete
Model."
to
(GSWI)
cooperation
in
working
are
Water Interaction
CSDLAC
and
Board
"Groundwater/Surface
Under existing TMDL, the GSWI is due May 4, 2007.
LRE
the
of
TMDL
the
results
the
and
revising
TMDL
whether
chloride
evaluate
to
the
of
staff
status
the
directed
on
Board
update
The
an
study.
with
18. At a public hearing on November 3, 2005, the RegiC?nal
Board was provided
staff
report,
source
chloride
the
and
LRE
the
of
conclusions
the
on
Based
19.
Implementation Plan is appropriate,and to considerthe possible impacts of
the high chloride level in surfacewater to groundwaterquality.
Board
Regional
the
in.which
alternative
no-action
a
(1)
TMDL:
Chloride
proposes four alternatives for the amendment to the Upper Santa Clara River
that
implementation
alternative
an
includes
(3)
but
schedule,
schedule
TMDL
the
of
implementation
6-1.3
TMDL
years
in
13-year
milestones
the
takesno action to revise the schedule,(2) an alternativethat doesnot revise
final
the
accelerate
both
to
amendment
TMDL
a
consider
will
Board
Regional
extends the 13-year schedule, and (4) an alternative that accelerates the 13year schedule. Staff recommends Alternative 4. Under this alternative, the
(100
limit
WQO
the
at
interim
the
discharge
of
while
year
instead
per
lbs
effect
in
is
million
7
to
mg/L)
200
million
4
of
(approximately
loading
compliance date and include time-certaintasks for tasksrelated to the design
and treatmentof chloride removal processesto reducechloride loading if
deemednecessary.Staff notesthere is potential for additional chloride
schedule.
TMDL
the
mg/L). Staff however believes this discharge can be mitigated by accelerating
Board
State
the
to
stakeholders
by
expressed
concerns
of
born
was
direction
20. The RemandResolution directedthe Regional Board to consider a phased
approachso that the Districts can completetheir implementation tasksby
RegionalBoardspecifieddatessequentiallyandwithin 13years.This
13
a
with
render
TMDL
the
could
studies
readopted
special
the
therefore,
that
Board,
technologies
Regional
The
new
wmecessary.
constructing
that they should not be required to expend resources planning and
.
by
followed
warranted.
if
revisions,
WQO
and
analysis
feasibility
studies,
year implementationplan. That I3-year period included five years for special
.5
standards.
with
compliance
until
to
revisions
include
not
do
TMDL
Chloride
River
Clara
Santa
Upper
the
for
(State
Policy
Antidegradation
State
the
with
consistent
is
amendment
The
resolution.
this
to
A
Attachment
in
proposed
is
Plan
Implementation
revised
The
5,2006.
May
on
comment
public
for
released
were
Amendment
complies with State Board Resolution
time
the
shorten
to
intended
are
and
WQOs,
23.
preserves
also
and
TMDL,
the
in
contained
currently
is
that
construction
and
design
planning,
for
schedule
year
eight
current
the
preserves
WQO,
chloride
the
complete
to
Districts
the
require
not
does
action
This
schedule.
TMDL
the
than
smaller
significantly
is
GWR
and
AGR
protect
to
necessary
as
LRE
than
frame
time
shorter
a
in
accomplished
be
can
Board,
Regional
the
meet
to
measures
conceptual
on
report
preplanning
a
of
development
analysis,
antidegradation
the
of
development
SSOs,
of
development
as
such
tasks,
TMDL
Subsequent
necessary.
be
not
would
systems
treatment
advanced
of
construction
that
such
stringent
less
sufficiently
are
that
SSOs
with
protected
be
still
could
uses
beneficial
GWR
and
AGR
the
whether
demonstrate
will
modeling,
GSWI
the
of
results
the
with
coupled
results,
These
10Omg/L.
from
mg/L,
117
to
up
relaxed
be
could
WQO
the
most
at
that
reveal
studies
LRE
the
Specifically,
completed.
is
model
GSWI
the
when
tasks
feasibility
the
initiating
in
Districts
the
to
prejudice
no
is
there
that
such
available
be
GSWI
the
of
completion
anticipated
the
and
LRE,
the
of
completion
With
21.
is
years
eight
that
2002),
October
MWH,
by
Prepared
Plants,
Reclamation
Water
Valley
Clara
Santa
the
at
Limit
Discharge
Chloride
Instantaneous
mg/L
100
a
with
Compliance
for
Impacts
(Cost
study
engineering
on
based
was
construction
and
design,
planning,
for
schedule
time
year
eight
eight yearsfor planning, design.and constructionof the selectedremedy. The
comments submitted by the Districts on October 7, 2002, with a supporting
required to plan, design and constructadvancedtreatment for chloride.
model by November 20, 2007, the Board finds that sufficient infonnation will
different hypothetical final wasteloadallocations, and preparation and
considerationof a Basin Plan Amendmentto revise the chloride objective by
originally contemplated because the range of chloride values identified by the
potential range of chloride objectives contemplated during development of the
planning and design tasks before the Regional Board considers revision of the
the requirementsfor the Board to reconsiderthe scheduletwice during the
planning, design and constructionphase. The Board finds the proposedaction
2003-0014.
22. The Staff Report, as well as a Notice of Exemption, and tentative Basin Plan
Board Resolution No. 68-16), in that the revisions of the Implementation Plan
Likewise, the amendment is consistent with the federal Antidegradation
Policy (40 CFR 131.12).
24. The proposedamendmentresults in no potential for adverseenvironmental
effects (de minimis finding), either individually or cumulatively, on wildlife
those
different
in
advance
result
not
merely
will
will
but
implementation
to
contemplated,
time
the
already
those
shortening
from
because
processes
Administrative
the
of
standard
"Necessity"
the
meets
action
regulatory
The
25.
processes.
Procedures Act, Government Code, section 11353, subdivision (b).
review
for
submitted
be
must
TMDL
Chloride
River
Clara
Santa
the
in
Plan
26. The Basin Plan amendment incorporating a revision for the Implementation
be
will
become
Decision
of
Notice
will
Environmental
U.S.
the
A
amendment
and
EPA.
Plan
(OAL),
Basin
U.S.
and
The
Law
OAL
EPA).
by
(U.S.
Administrative
of
approval
upon
Agency
Office
effective
Protection
State
and approval by the State Water Resources Control Board (State Board), the
filed following these approvals.
Therefore, be it resolved that:
A
Attachment
in
Plan
Implementation
revised
the
with
04-004
Resolution
in
Pursuantto Section 13240and 13242of the Water Code, the Regional Board
hereby amendsthe Basin Plan by replacingthe Implementation Plan contained
of this Resolution.
Quality
Water
the
7
Chapter
to
amendment
the
adopts
hereby
hearing,
the
Pursuantto sections13240and 13242of the California Water Code, the
Regional Board, after consideringthe entire record, including oral testimony
at
2,
hereto.
A
Attachment
in
forth
set
as
Section
Implementation
7-6.2,
Control Plan for the Los Angeles Region to incorporate the revisions of the
Implementation Plan in the Upper Santa Clara River Chloride TMDL, Table
section
of
requirements
the
with
accordance
in
SWRCB
the
to
amendment
3 The Executive Officer is directedto forward copiesof the Basin Plan
Plan
Basin
the
approve
SWRCB
the
that
requests
Board
Regional
4.
The
13245 of the California Water Code.
amendmentin accordancewith the requirementsof sections 13245,and13246
(U.S.
Agency
Protection
Environmental
State
United
the
and
(OAL)
OAL
or
Board
State
staff,
Board
Regional
process
approval
its
during
5
If
EPA).
Law
of the California Water Code and forward it to the Office of Administrative
Officer
Executive
the
consistency,
for
or
clarity,
for
needed
are
amendment
detennines that minor, non-substantive corrections to the language of the
may make such changes,and shall infonn the Board of any such changes.
6. The Executive Officer is authorizedto sign a Certificate of Fee Exemption.
-6
7. The text in the Basin Plan, Plansand Policies (Chapter 5), is hereby amended
to add:
No. 06-0XX. Adopted by theRegional Water Quality Control
"Resolution
in
Chloride
for
TMDL
the
in
Plan
Implementation
the
revise
to
'Amendment
Board on August 3, 2006.
the Upper SantaClara River, Resolution 04-004'.
The resolution proposes revisions to the Implementation Plan for the Upper
Santa Clara River Chloride TMDL."
t
op
cer
-1
Quality
Water
Regional
California
the
2006.
by
3,
August
adopted
on
Region,
resolution
a
of
copy
Angeles
Los
correct
and
Board,
Control
true,
I, JonathanBishop, Executive Officer, do herebycertify that the foregoing is a full,
2006.
3.
and
Augyst
on
Board
Control
Agency on April
.
2004
22,
July
on
Board
Control
Resource
28, 2005
6,
May
on
Board
Control
Quality
Water
Regional
The
10,2003.
July
on
Board
Control
Quality
Water
19,2003
February
on
Board
Control
Resources
Water
24,2002.
October
on
Board
Control
Q.uality
Water
TMDL
River
Clara
Santa
Upper
(TMDu)
(Revised)
Schedule
Implementation
TMDL;
Chloride
River
.
ElementS;
TMDL:
Chloride
River
Clara
7. Total Maximum Paily Loads
Ouali!v
15,'2004
Water
by:
State
Regional
The
Clara
Santa
TMDL
Chloride
River
Clara
Santa
UDDer
7-6
Loads (TMDLs)
Water
Re2ional
The
November
Regional
The
DailyLo~ds
Santa
Upper
List of Figures, Tables, and Inserts
bv:
Protection
State
The
by:
Maximum
The
by:
adopted
Upper
7-6.1.
Daily
on
Law
adopted
by:
remanded
7-6.2.
Maximum
adoDted
The U.S. Environmental
and
adopted
was
TMDL
This
7. Total
by:
revised
was
TMDL
This
~apter
approved
was
TMDL
This
7. Total
revised
was
TMDL
This
Chapter
was
TMDL
This
.
Administrative
of
Office
The
Chapter
was
TMDL
Thi§
~8
~~
Resolution
River,
Clara
Santa
Upper
the
in
Chloride
for
TMDL
the
for
Revision of the Implementation
Plan
PropOsedfor adoption by the California Regional Water Quality Control Board, Los Angeles
Region on M&y-Augyst 3. 20066, ~CI'~.
Amendments
Table of Contents
Add':
.
.
(TMDLs) Tables
2004.
R4-2006-016
004
04
No.
Resolution
to
A
Attachment
Pagel
R4-~16
No.
~
Resolution
2
No.R4-2006-016
Page
Resolution
~
.
protect
all beneficial
uses; agricultural
beneficial
to
set
was
objective
This
River.
Clara
Santa
the
of
8)
Reach
list
303(
Statement
d)
Problem
Elevated chloride concentrations are causing impainnents of the water
quality objective in Reach5 (EPA 303(d) list Reach7) and Reach 6 (EPA
uses have been
determinedto be most sensitive,and not currently attained at the
downstream
end of R"each 5 (EPA 303(d) list Reach 7) and Reach 6 (EPA
containing
water
with
strawberries
and
avocados
as
such
Crops
sensitive
303(d) list Reach 8) in the Upper Santa Clara River. Irrigation of salt
elevated levels of chloride results in reduced crop ,yields.Chloride levels
instantaneously
measured
lOOmg/L,
of
target
nuItleric
a
has
the
of
6
and
5
Reaches
to
pertains
TMDL
this
for
target
the
considered
be
will
throughout
amendment
Plan
instan~eously,
Basin
measured
subsequent
mg/L,
A
reaches.
impaired
objective
Santa Clara River and is based on achieving the existing water quality
100
objective,
used to calculate
the load
allocations)
of
quality
are also risin~.
and expressedas a chloride concentration,required to attain the water
quality objective and protect agricultural supply beneficial use.These
objectivesare set forth in Chapter3 of the Basin Plan.
numeric
of
the numericwater
The
(In(erpretation
This
Target
TMDL
in groundwater
Numeric
through
2
tasks
with
accordance
in
studies
complete
and
timely
submit
to
by the Regional Board to adjust the chloride objective basedon technical
studiesabout the chlo.ridelevels, including levels that are protective of
salt sensitivecrops, chloride sourceidentification, and the magnitudeof
assimilative capacity in the upper reachesof the SantaClara River,
provided that County SanitationDistrictS of Los Angeles County choose
6 of Table 7.6.2.
and
(WRP)
chloride
the
Plant
of
70%
Reclamation
contribute
Water
to
Saugus
the
estimated
are
from
which
discharges
WRP,
Valencia
is
The principal sourceof chloride into Reaches5 and 6 of the SantaClara
River
SourceAnalysis
was
quality
water
in-stream
the
and
sources
chloride
between
Linkage.
load in Reaches 5 and 6.
Linkage Analysis
from
6
that
and
5
shows
Reaches
to
analysis
The
added
99.
usUally
is
Highway
and
capacity
Cut
Blue
at
assimilative
data
additional
quality
established through a -statistical analysis of the WRP effluent and water
upper
the
Of
Interaction?
Water/Groundwater
(Sllrface
Valencia
for
m2!L
100
are
(WlAs)
allocations
load
waste
proposed
reaches of the Santa Clara River.
The numeric target is bas~
on the -water quality objective for chloride.
The
Waste Load
AUocations (for
study
hydrological
groundwater discharge, but the magnitude of the assimilative capacity is
not wen. quantified. Consequently, the Implementation Plan includes a
R4-2006-016
No.
are
discharges
WQO,
allocations
Page 3"
existing
load
---
NPDES
the
waste
Other
frolt1
The
derived
WRP.
growth.
future
limit
Saugus
mg/L
concentration
100
asa
and
/V\A
t\A
.
Load AUocation
(for non point
sources)
accommodating
thereby
expressed
point sources)
WRP
Resolution
contribute a minor chloride load. The waste load allocation for thesepoint
sourcesis 100 ffie/L.
The sou"rceanalysisindicatesnonpoint sourcesare not a major source<?f
chloride. The load allocations for these nonpoint sources is 100 mg/L.
Interim
of
as
sum
the
mg/L,
is
114
plus
chloride
for
concentration
allocation
.
in
TMDL
evaluated
of
be
will
period
the
effluents
during
that
WRPs'
allocations.
the
load
supply
23Omg/L.
exceed
allocation
wasteload
average.
interim
the
shall
time
no
a twelve month rolling
At
load
water
waste
waste
for
proposes
plan
treated
interim
interim
The
Project
Water
WRP:
with
compliance
The
State
Saugus
accordance
implementation,
implementation
Refer to Table 7-6.2.
Implementation
Load Allocation=Treated.Potable
Waste
Water Supply +
concentratiol)
chloride
in
difference
maximum
the
is
mg/L
(114
114 mg/L, not to exceed 230 mg/L.
between the State Water Project treated water and the Saugus
WRP treatedeffluent over the last f1vey~ars.)
Valencia WRP= The interim
waste load allocation
for chloride
is the sum
allocation
exceed 230 mg/L.
wasteload
interim
.
potable Water
Waste Load Allocation=Treated
Interim
the
shall
time
no
At
average.
rolling
month
twelve
a
as
of State'Water,Projecttreatedwater supply cOncentrationplus 134 mg/L,
Supply +
\>DOrer
less,
is
discharp;e
woundwater
hi~her,
are
Three critical conditions are identified for this TMDL. The driest six
months of the year is the flfSt "critical condition for chloride becauseless
surfaceflow is available to dilute effluent discharge,pumping rates for
p~oses
Seasonal
Variations and
Critical Conditions
(134mg/L, is the maximum difference in chloride concentration
between the State Water Project treated water and the Valencia
WRP treated~ftluent over the last five years.)
An implicit margin of safety is incorporatedthrough conservativemodel
assumptions and statistical analvsis.
agricultural
Safety
of
Margin
134 ffig/L, not to exceed230 mg/L.
R4-2006-016
critical
evapotranspiration
second
and
extraction
groundwater
on
groundwater
impact
greater
with
seasons
and increased
the
aquifer
drought.
the
into
During.
drawn
be
weather.
may
flow
several
surface
through
reduced
warm
in
greater
groundwater
are
quality
effects
continues
condition
4
Q4..OO4 No.
Page
Resolution
the
in
used
beneficial
or
will be completed
WQO
the
modeling
impact
will
were
conditions
critical
three
all
loading
conditions.
non-critic~
d~~n~
uses
additional
model described. Hydrological
evaluate-whether
statistical
from
Data
objective.
the
resourceand discharge.The third critical conditions is basedon the recent
instreamchloride concentrationincreasessuch as those that occurred in
1999,a ye.arof averageflow, when 9 of 12 monthly averagesexceeded
to
of
Date
TMDL
CUt,
Blue
at
concentration
in-river
Effective
average
monthly
the
(I)
Should
a)
1. Alternate Water Supply
(05/04/2005)
month
twelve
rol.ling
a
as
TMDL
this
of
purposes
the
for
measured
the reach boundary, exceed the .water quality objective of 100mgfL,
the
of
photographic
date
Angeles
Los
of
effective
the
Districts
after
provide
diverter
years
Sanitation
2
least
County
at
agricultural
each
(3)
for
and
Board
(CSDLAC)
and
TMDL
County
Regional
average,for three months of any 12 months, (2) eachagricultural'
diverter provide recordsof the div.ersiondatesand amountsto the
evidence that diverted water is applied to avocado, strawberry. or
.
in-"
water
die
as
time
alternative
as
an
such
providing
until
for
Board
Control
responsible
be
Quality
Water
Regional
will
other chloride sensitivecrop and evidenceof a water right to divert,
then CSDLAC
supply, negotiating the delivery of alternative water by a third party,
or providing fiscal remediationto be quantified in negotiations
betweenCSDLAC
and the agricultural diverter at the direction of the
two
than
a
within
the
Officer,
submit,'
Executive
to
by
more
mg/L
id~ntified
230
required
Board
be
discharger
exceed
shall
the
Regional
the
by
Officer
period,
concentratiPD
request
a
of
Executive
year
instream
three
the
~
days
Board
in
Should
ninety
Regional
times
b)
river chloride concentrationsdo not exceedthe water quality
objective.
for
Board
TMDL
the
of
date
effective
by
CSDLAC
to Regional
the
from
submitted
be
basis
will
reports
semiannual
a
on
Progress
staff
2.
workplan for an accelerated sc;heduleto reduce chloride discharges.
tasks 4,6, and 7. and on ~_annual basis for Task'S.
6 months after
Effective Date of
TMDL
that
Board
Regional
the
to
plan
a
subInit
will
CSDLAC
TMDL,
3. ChlorideSourceIdentification/Reduction,
PollutionPreventionand
PublicOutreachPlan:Six monthsaftertheeffectivedateof the
addresses measures taken and planned to be taken to quantify and
controlling
on
based
potential
developed
assess
were
(11/04/2005)
.
in
effective
be
may
self-regenerating
CSDLAC,
which
by
residential
that
meas.ures
f~r
conducted
programs,
chloride.
other
and
programs
efforts
outreach
outreach
pilot
softeners,
water
incentive/disincentive
the
community-wide
control sourcesof chloride, including, but not limited to: exec':lte
CSDLAC
shall develop and implement
the
will ~alyze the alternatives for reducine; this source. ---
and
The
rainfall,
low
assessed.
and
be
will
drought
of
supplies
conditions
water
include
imported
from
will
assessment
sources
sourcereduction/pollution prevention and public outreachprogram,
and report results annually thereafterto the Regional Board. Chloride
5
No.R4-2006..0l6
Page
Resolution
~
12 months after
Effective Date
(05/04/2006)
to
descriptions
at
Board;
and
6
Task
Regional
of
a
task
and
The
for
6.
Task
schedule
for
the
threshold
re-evaluate
will
chloride
hearing
appropriate
.support any needed changes to the time schedule for ev~uation
public
state
with
consistent
assessment
and
analysis
staff
Board
Regional
subsequentlinked task.sbasced
on input from the T AC(s), along with
the
there
if
sensitive
salt
schedule
the
of
determine
to
amend
to
protection
studies
the
action
for
scientific
take
will
2d yearsafter
solicit
will
(11/20/2007)
.
Board
Regional
for
developed
management
for
recommendations
Regional Board. obtain peer review, and report results. The impact of
source waters and reclaimed water plans on achieving the water
quality objective and protecting beneficia. uses, including. impacts on
underlying groundwater quality, will also be assessedand specific
TMDL
Effective Date of
the
with
CSDLAC
cooperation
Model:
in
model
a
Interaction
develop
data,
collect
Water
justification.
and
threshold
necessary
the
technical
uses,
chloride
conduct
sufficient
"Groundwater/Surface
proposals,
5.
is
agricultural
appropriate
to
.andfederal law, as to the types of studiesneededand the time needed
years
after
Date
of
(11/20/2007)
submit
and
prepare
also
will
CSDLAC
thresholds.
protection
species
TMDL
endangered
on
Species
Effective
report
a
Endangered
submit
and
and
Use
prepare
Supply
will
CSDLAC
Agricultural
Protection:
Sensitive
6. Evaluation of Appropriate Chloride Threshold for the Protection of
L~
consideration. The purpose of the modeling and sampling effort is to
determine the interaction between surface water and groundwater as
itto may
affect
the Dualitv.
loading of chloride fron'1 groundwater and. its linkage
surface
water
a report presentingthe results of the evaluationof chloride thresholds
.for salt sensitiveagricultural uses,which shall consider"theimpact of
drought and low rainfall conditions and the associatedincreasein
imported water concentrationson downstreamcrops utilizing the
result of Task 5.
'l:..B:4years after
Effectiv~ Date of
TMDL
Plan
technical
Basin
a
develop
and
base
may
proposals
Board
solicit
Regional
will
the
CSDLAC
which
upon
analyses
'Agriculture:
7. Develop Site Specific Objectives (SSO) for Chloride for Sensitive
amendment.
.
(OmO/2008)
anti-de~dation
develop
and
proposals
solicit
will
CSDLAC
SSo:
by
.Objective
8. Develop Anti-Degradation Analysis for Revision of Chloride
analysis for Re2ional Board consideration;
draft
6
R4-2006-016
Page
~
Resolution
literature
review
to
Board
Regional
and provide
timelines
detailed
for.assessment,
with
recommendations
a methodology
the
with
cooperation
in
(TAC(s»
4. CSDLAC will convene a technical advisory committee or committees
develop
No.
and
measures
control
chloride
potential
identifies
that
Board
Develop a pre-planning report"on conceptualcompliancemeasuresto
meet different hypothetical final wasteloadallocations. CSDLAC
shall solicit proposalsand develop and submit a report to the Regional
9
1
No.R4-2006-0
16
Page
Resolution
~
.
» years after
Effective Date of
TMDL
(BPA)
Amendment
Plan.
Basin
ora
Consideration
md
Preparation
to. revise the chloride objective by the Regional Board.
a)
10.
costs based on different hypothetical scenarios for chloride water
quality objectives and final waste~oadallocations.
(05/04/2008)
identify
needs,
water
quantify
win
CSDLAC
Uses:
Beneficial
b) Evaluation of Alternative Water Suppliesfor Agricultural
alternative water supplies,evaluatenecessaryfa.cilities, and report
results, including the long-term application of this remedy.
CSDLAC
Objective.
Chloride
Proposed
for
Allocations
of Feasible CQmpliance Measures to Meet Fin~
Wasteload
c) Analysis
Regional
and
the
by
TMDL
River
Clara
Chloride
the
Santa
on
Upper
taken
the
action
for
and
of
Allocations
Wasteload
Reconsideration
Final
d)
will assessand report on feasible implementation actions to meet the
chloride objective established pursuant to Task lOa).
Board.
II. a)lmolementation
ofComoliance
CSDLAC
to
Measures. Plannin2:
5 ~ears after
Effective Date of
TMDL
(2)
agencies:
smte/federal
lead
identifvin2
(1)
to:
limited
sul:!mita reoort of olannin2 activities which include but are not
administerin2 a comoetitive bid orocess for the selection of EIR/EIS
(05/04/20]0)
Df
Notice
Pro~iect
of
of Prelimin~
Submittal
(4)
(3) Develo~ment
Analvses:
Consultants:
Feasibilitv
and
Plannin2
and Enmneerin2
and resoonse
to comments:
(8) Administration
of final
Periods'
inco~ration
and
and Comment
Em
and
Review
Plan
of Public
Facilities
Final
Administration
of
6
EIR'
Develo~ment
m
and
Preparation/Notice of Intent: (5) Preoaration of Draft Facilities Plan
~ublic
review
and orovide semi-annual oro2reSSreoorts on oro2reSSof ~lan!!ing
activities. thereafter.until com~letion of Final Facilities Plan and
EIR.
.
.
~ears
after
Date of
TMDL
Effective
Ita).
Task
to
related
subtasks
and
~ks
related
of
schedule
a
orovide
5
to
CSDLAC
Planning:
Measures.
ComL1liance
of
Imolementation
b)
and certification process:and (9) Filin~ a Notice'of Determination.
and Record of Decision.
(O5/04nOl0)
Resolution Q4-OO4No. R4-2<X>6-016
PageS
implement
control
measure.s
to meet Final
Wasteload
a
coml2!ete
have
the
TMDL
6 yearsafter
EffectiveDateof
(05/04/2011)
for
limits
~rmit
efflu~nt
final
Iml2act Rel2Qrt for advanced
with
com121y
to
facilities
provide
shall
CSDLAC
Bel2°rt:
Environmentallml2act
treatment
.Facilities Plan and Environmental
(05/04/2011)
Allocations
adoptedpursuantto Task 10 d). CSDLAC
justification for the needfor an extensionto the Regional Board
executive Officer at least 6 months in advanceof the deadlinefor this
task.
~ 13. a) Iml2lementation-of Coml2lianceM~asures.Coml2lete
will
Effective Date of
to
schedule
the
reconsider
and
l~
Task
of
date
completion
the
12~.The Regional Board. at a public meeting will consider extending
§9 yearsafter
TMDL
-Ho:12. The Regional Board staff will re-evaluate the schedule to
.implement control measures needed to meet Final Wasteload
Allocations adopted pursuant to Task 10 d) and the schedule for Task
cWoride.
6 yearsafter
EffectiveDateof
Design:
recommended
the
design
engineering
the
of
Measl1res. Engineering
of Com12liance
be2in
win
CSDLAC
b) 1rn121ementation
TMDL
12roject.
tasks. and DfOvide semi-annual
p;rog.ress re~rts
n:
Desi
sub-
and
tasks
ineerin
En
related
of
Measures
schedule
liance
design
a
Com
of
p;rovide
lementation
will
1m
CSDLAC
c
(05/04/2011)
on p;rog.ress of design
activities. thereafter. until comp;letion of Final Design. In ~dition
CSDLACwill p;rovide a construction schedule of relat~ tasks and
sub-tasks. and p;rovide semi-annual p;romss re~rts on p;romss of
construction activities." thereafter. until c~mp;letion of recommended
7 years after
Effective Date of
TMDL
(05/04/2012)
p;roject.
construction
and
~rmits
~~ro~riate
all
received
of the recommended
~ro~iect.
11 yearsafter
Effective Date of
TMDL
have comoleted
and
a~~lied
have
shall
CSDLAC
d) Imolementation of Com~liance Measures. Construction:
the
extending
consider
may
in the Upper Santa Clara River shall be
completion date of this task as necessary to account for events
"beyondthe control of the CSDLAC.
~!Lyears
after
Effective Date of
TMDL
for
effect
Water
in.
TMDL.
the
remain
of
shall
date
chloride
effective
for
the
1irnits
for chloride
Bo8rd
Regional
after
years
effluent
ll~
interim
than
Objective
The
The
more
14.
no
Quality
achieved.
~
(05/04/2016)
(05/04/2016)