HomeMy WebLinkAboutAGENDA BACKUP 02-18-93
~ Centra. ~g~:~ g~~~R~~~ba~~&)istrict
PAGE 1
OF 2
POSITION PAPER BOARD MEETINGf?~bruary 18, 1993
NO.
4. CONSENT CALENDAR a.
SUBJECT
DATE
February 5, 1993
APPROVE AGREEMENT RELATING TO REAL PROPERTY WITH
RAYMOND L. DEGENNARO, MARGARET E. DEGENNARO, AND
SHERRI LYNN DEGENNARO, JOB NO. 4861, LAFAYETTE
AREA
TYPE OF ACTION
APPROVE REAL
PROPERTY AGREEMENT
SUBMITTED BY
Dennis Hall, Associate Engineer
INITIATING DEPT.lDIV.
Engineering Dept./lnfrastructure Div.
ISSUE: The property owners (R. L. DeGennaro, et al) have requested the District's approval to
allow the encroachment of two redwood decks over a District easement.
BACKGROUND: In 1991 the DeGennaros requested building plan approval for a proposed home
addition. Upon reviewing District records, staff determined that a portion of the existing home
was constructed within the District's sewer easement and over a portion of the existing 15-inch
sewer main which crosses their property. Prior to receiving plan approval from the District, the
District required the DeGennaros to design and install a 1 6-inch ductile iron sewer pipe which
would be clear of the existing house and the proposed house improvements. The DeGennaros
were also required to grant a new sewer easement over the alignment of the new sewer pipe.
The original 1 5-inch pipe line was abandoned and the original easement was quitclaimed by the
District. The cost of the sewer improvements which were in excess of $60,000 was paid by
the DeGennaros.
The present request is to allow the construction of two decks that encroach into the new District
easement. The larger of the two decks is located off the rear of the building and also will be
built over approximately 40 lineal feet of the new 16-inch sewer. The second and smaller deck
on the south side of the building barely encroaches into the District easement.
The property owners have cooperated with the District and have paid the District's fee for
processing the subject agreement. Staff has determined that the improvements will not interfere
with the present use of our sewer. However, if the need should arise, the agreement requires
the property owner to move the decks at his/her expense within 30 days of notice to do so.
This project (the proposed agreement) has been evaluated by staff and determined to be exempt
from the California Environmental Ouality Act (CEOA) under District CEOA Guidelines Section
18.6, since it involves a minor alteration in land use limitations.
RECOMMENDATION: Approve the Agreement relating to Real Property with
Raymond L. DeGennaro, et ai, Job No. 4861, and authorize the President of the Board of
Directors and the Secretary of the District to execute said agreement, and authorize the
agreement to be recorded.
1302A-9/85
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MINER
ROAD
REAL PROPERTY AGREEMENT
JOB 4861
ORINDA AREA
Central Contra Costa Sanitary District
BOARD OF DIRECTORS
PAGE 1
OF 1
BOARD MEETING OF
February 18, 1992
NO.
4. CONSENT CALENDAR b.
D1!~bruary 4, 1 993
SUBJECT
AUTHORIZE PURCHASE OF A PORTABLE GAS DETECTION METER
FROM THE 1 992-93 EQUIPMENT BUDGET CONTINGENCY
ACCOUNT
TYPE OF ACTION
AUTHORIZE PURCHASE
SUBMITTED BY
John C. Pearl
INITIATING DEPT.lDIV.
Plant 0 erations De artment
ISSUE: Board authorization is needed to purchase equipment items from the Equipment Budget
Contingency Account when the cost exceeds $2,000.
BACKGROUND: One of the four gas detection meters used for monitoring confined space entries
at the plant and pumping stations, an Enmet CGS-l 00, has failed, and it is not cost-effective to
repair it. The replacement meter we have selected is an MSA 3210L-A-X, which meets all the
regulatory standards. The cost of this meter is approximately $2,300.
The Enmet that will be replaced is over 10 years old, and its replacement was planned for next
year as part of the program for replacing all four of the Enmet meters over a four-year period, or as
they failed. The first new meter was purchased from the Board-approved 1992-93 Equipment
Budget.
The failure of this meter means that the District's gas monitoring capability is reduced to an
unacceptable level; therefore, we now need to purchase a replacement rather than wait until the
1993-94 Equipment Budget is approved.
RECOMMENDATION: Authorize the purchase of a new MSA gas detection meter from the
Equipment Budget Contingency Account at a cost not to exceed $2,300.
1302A-7/
JCP
REVIEWED AND RECOMMENDED FOR BOARD ACTION
~
~. ~ Centrat ':ontra Costa Sanitary .Jistrict
~ BOARD OF DIRECTORS
PAGE 1 OF 6
POSITION
PAPER
BOARD MEETING OF
February 18, 1993
NO.
6.
BIDS AND AWARDS a.
SUBJECT
DATE
AUTHORIZE AWARD OF A CONSTRUCTION CONTRACT TO
HESS CONSTRUCTION COMPANY, INC., FOR THE
1-680/SR-24 SEWER RELOCATIONS PHASE III,
DISTRICT PROJECT NO. 4782
Februar 11 1 993
TYPE OF ACTION
AUTHORIZE
AWARD
SUBMITTED BY
INITIATING DEPT.lDIV.
Rey I. Limjoco, Assistant Engineer
Engineering Dept./lnfrastructure Div.
ISSUE: On February'5, 1993, sealed bids for the construction of District Project No. 4782,
1-680/SR-24 Sewer Relocations, Phase III, were opened. The Board of Directors must authorize
award of the contract or reject bids within 50 days of the opening of bids.
BACKGROUND: Caltrans has initiated design of the next phase of its 1-680/SR-24 interchange
expansion. This phase will consist of lane widening between Oak Park Boulevard and
Monument Boulevard in Pleasant Hill. To accommodate the proposed widening, 5,600 feet of
sewer ranging in size from 6-inch to 33-inch diameter along North Main Street and Monument
Boulevard will be relocated (see map, Attachment 1). A 15 foot wide easement approximately
270 feet long on North Main Street will be obtained by the District from EBMUD for this
project. In addition, the District's Collection System Operations requested that about 2,000
linear feet of deteriorated 6-inch diameter sewers in adjoining areas not affected by the Caltrans
work be replaced and included in this project.
The Caltrans 1-680/SR-24 Project has been broken into several phases with completion of the
final phase scheduled for 1995/96. Additional sewer relocations will be required under future
phases. As in previous relocations, the District will handle all aspects of the relocations with
Caltrans reimbursing the District for the total project cost. On September 1991, the District
executed a utility agreement with Caltrans to receive reimbursement for costs associated with
the planning, design, and construction of the Phase III relocation affected by the freeway
widening.
The project was advertised on December 30, 1992, and January 5, 1993. The adjustsd
pre-bid estimate for construction is $1,750,000. This estimate was reduced from the
Engineer's estimate of $2,250,000 to reflect the current favorable bidding climate.
Eleven bids ranging from $1,712,622 to $2,647,260 were received on February 5,1993. A
summary of bids is presented in Attachment 2. The Engineering Department conducted a
technical and commercial evaluation of bids and concluded that the lowest responsible bidder
is Hess Construction Company, Inc.
C~
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SUBJECT
AUTHORIZE AWARD OF A CONSTRUCTION CONTRACT TO
HESS CONSTRUCTION COMPANY, INC., FOR THE
1-680/SR-24 SEWER RELOCATIONS PHASE III,
DISTRICT PROJECT NO. 4782
:111111111111::1111111
PAGE 2
OF
2
DATE
February 11, 1 993
District staff will administer the contract and provide inspection services. The 1-680/SR-24
Sewer Relocation, Phase III, is included in the 1992-93 CIB at Page CS-22. A post bid pre-
construction estimate is presented in Attachment 3. An allocation of $2,548,000 from the
Collection System Program is needed to complete the project. The betterment portion of the
project attributable to the District would be $437,000. The current balance of the Sewer
Construction Fund, minus unspent allocations plus projected dependable revenue will be
adequate to fund this project. A funding summary is presented in Attachment 4.
Staff has determined that this project is exempt from the California Environmental Quality Act
(CEQA) under District CEOA Guidelines, Section 18.2, since it involves minor alterations to
existing sewage facilities with negligible or no expansion of use. The Board of Director's
approval of this project will constitute a finding of agreement with this determination unless
otherwise indicated.
RECOMMENDATION: Authorize award of a contract to Hess Construction Company, Inc., the
lowest responsible bidder in the amount of $1,712,622 for the construction of the 1-680/SR-24
Sewer Relocations, Phase III, District Project No. 4782. Authorize the General Manager-Chief
Engineer to allocate $2,548,000 from the Collection System Program for the project.
1302B-7/91
4
Walnut Cree
Orinda
Q
Alamo
Danville
. Project Location(s)
Central Contra Costa
Sanitary District
I 680/SR 24 Attachment
SEWER RELOCATIONS, PHASE III 1
DP 4782
ATTACHr~ENT 2
Centr,___ Contra Costa San...ary District
SUMMARY OF BIDS
PROJECT NO. 4782 - I -680/SR-24 Sewer Re 1 oca t i on Ph. II I DATE Februa ry 5. ] q93
LOCATION North Main Street. Pleasant Hill ENGR. EST. $ 1,750,000
-
~.!>
BIDDER (Nome, telephone & address)
BID PRle.
1
Hess Construction Co. , Inc. (707 )255-8686 $
1,712,622
.. -
D. w. Young Construction Co. (510 )837-0724 $
1,776,029.30
,
Mountain Cascade, Inc. (510 )373-8370 $
1,783,000
P & M Pipeline Inc. ( 415 )75Q-70fiQ $
1,808,110
Silvas Pipeline. Inc. (510 }86-2722 $
1,938,867
McGuire and Hester (510 ) 632-7676 $
1,999,845
Hoque Construction { 707 . ) 57?-024S' . $" 2.186.878
Contrf Construction. Inc. (702 ) 786-8550 $:
2,210,554
, ( 510 ) 785-5805
MJB Pioeline $
2,282,796
Valley EnQineers. Inc. ( 209 ) 237-9173 $
2.301.642
Delta ExcavatinQ. Inc. ( 510 ) 634- 9600 $
2, 647,260
( ) $
2
3
4
5
6
7
8
9
10
11
BIDS OPENED BY
DATE
SHEET NO.
OF
250}-~.'e4
ATTACHMENT 3
1-680/SR-24 SEWER RELOCATION, PHASE III
DISTRICT PROJECT NO. 4782
CONSTRUCTION PHASE
PERCENT OF
CONSTRUCTION
CONTRACT
ITEM DESCRIPTION TOTAL COSTS
1 Engineer's Estimate $1 ,71 2,622
2 Contingency at 20% 1 342,378
3 CCWD Design/Inspection 70,000
Subtotal $2,125,000 100
4 Construction Management/Inspection $ 240,000 11.3
5 Consultant/Professional Services $ 115,000 5.4
6 Miscellaneous $ 35,000 1.7
7 Pre-bid Expenditures
0 Design $ 313,000
0 Contaminated Material Assessment 25,000
Subtotal $ 338,000 15.9
8 Total Project Cost Estimate $2,853,0002 134.3
9 Funds Authorized to Date $ 305,000
10 TOTAL ALLOCATION OF FUNDS TO COMPLETE $2,548,000
PROJECT
1 A 20 percent contingency was utilized due to the uncertainty associated with the extent of
contaminated material.
2Costs attributable to the District are approximately $437,000.
10/1 nfra/4824-4 782/4 782PH3.3
ATTACHMENT 4
PROJECT FUNDING SUMMARY
FOR THE PERIOD 2/5/93 - 3/5/93
SEWER CONSTRUCTION FUND BALANCE
AS OF 1/31/93
$64,255,392
MINUS UNSPENT PRIOR ALLOCATIONS
(38,977,339)
PLUS DEPENDABLE REVENUE
9.090.918
$34,368,971
$34,368,971 > $2,548,000 (ALLOCATION REQUIRED)
.-
~ Centra~ ;ontra Oosta Sanitary Jistrict
~ BOARD OF DIRECTORS
PAGE 1 OF 9
POSITION
PAPER
BOARD MEETING OF
February 18, 1993
NO.
8.
ENGINEERING a.
SUBJECT
STATUS UPDATE OF THE PLEASANT HILL/A-LINE
SEWER OVERFLOW PROTECTION PROJECT,
DISTRICT PROJECT NO. 4879
DATE
Februar 8, 1993
TYPE OF ACTION
STATUS UPDATE
SUBMITTED BY
INITIATING DEPT.lDIV.
Tad J. Pilecki, Senior Engineer
Engineering Dept.llnfrastructure Division
ISSUE: Final decisions on pipe routing, water reclamation, and pipe capacity will soon be
required on the Pleasant Hill Interceptor Project.
BACKGROUND: At its September 4 and October 13, 1991, meetings, the Board certified the
Final EIR for the Pleasant Hill/A-Line Overflow Protection Project. Additionally several route
segments for the construction of the Pleasant Hill Relief Interceptor Project (segments 1,3, 12,
16A, 19A, and 20; see Figure 1) were approved.
In January 1 992 the Board authorized a contract with James M. Montgomery Consulting
Engineers Inc. (JMM) for the detailed design of the Pleasant Hill Relief Interceptor Project. The
project team has completed the 50 percent design and several key issues need to be resolved
to allow cgrnpletion of the plans and specifications. The project is scheduled to bid in June or
July 1993 with award of the construction contract in August.
Key remaining issues are:
. Final designation of two Pleasant Hill Relief Interceptor route segments.
. A proposal to include a recycled water line in the project.
. Consideration of whether or not to size the first phase of the Pleasant Hill/A-Line Project
to accommodate possible future flows from TWA.
Final Desianation of Route Seamerits
For two locations along the planned Pleasant Hill Relief Interceptor route, the Board directed
staff to proceed with additional right-of-way and design studies before recommending a final
route selection (see Figure 2 and 3):
1 . Segment 14 versus segment(s) 13/15 (Contra Costa Boulevard vs. Pleasant Hill
Shopping Center.
REVIEWED AND RECOMMENDED FOR 5C~::iD ACTION
1302A-9 85
lItO
TJP
JSM
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SUBJECT
POSITION PAPER
STATUS UPDATE OF THE PLEASANT HILL/A-LINE
SEWER OVERFLOW PROTECTION PROJECT,
DISTRICT PROJECT NO. 4879
PAGE 2
OF 4
DATE
February 11, 1 993
2. Segment 18 versus segment 17 (Grayson Creek vs. Ruth Drive).
Following completion of the additional studies, staff was to select a recommended route and
examine the coverage of that route in the EIR and notify the public.
Staff recommends that segments 14 and 18 be approved as part of the route for the Pleasant
Hill Relief Interceptor Project and that Segments 13, 15, and 17 be dropped from further
consideration. The rationale for these recommendations will be discussed as part of staff's
presentation. Board approval of the routes should be considered at a future Board meeting to
allow public notice and comment prior to the Board's deliberations.
Recvcled Water Pioeline
During the EIR process, several agencies and individuals requested that a recycled water
pipeline be incorporated into the project. At previous Board meetings, staff was directed to
proceed with design of a recycled water pipeline in conjunction with the Pleasant Hill Relief
Interceptor and to continue negotiations with Contra Costa Water District (CCWD) to determine
its level of participation in the recycled water project. To date, the CCWD has not committed
to the recycled water project and is unlikely to be able to do so before the project is bid. Staff
is currently working on CECA documentation to include construction of the recycled water
pipeline as part of the Pleasant Hill Relief Interceptor Project. The incremental cost to construct
the recycled water pipeline in conjunction with the Pleasant Hill Relief Interceptor is estimated
to be approximately $1.1 million. Staff requests the Board's concurrence that preserving the
option to include the water reclamation line in the project is justified to enable implementation
of the future landscape irrigation Recycled Water Project. Board approval of the water
reclamation line will be scheduled at a future Board meeting to allow public notice and
comment prior to final deliberation.
Accommodation of Additional Flow
The Pleasant Hill/A-Line EIR evaluated only approved planned growth in developing assumed
project design flows of 350 mgd. Additionally, the EIR provided for construction of the
Pleasant Hill/A-Line relief interceptors as either two separate pipelines (constructed ten years
apart) or one combined pipeline along Marsh Drive (see Figure 1, Segment 3), A Value
Engineering Workshop conducted on the project recommended that staff pursue combining the
two pipelines in Marsh Drive based on a present worth cost savings of $2.5 million. Based on
the potential cost savings and the elimination of disruption associated with a second large
project ten years later in the same alignment, staff recommends that the District proceed with
the combined pipe option along that portion of the Pleasant Hill Relief Interceptor route that
could be common to the A-Line Relief Interceptor route.
13078 9,8:)
SUBJECT
POSITION PAPER
STATUS UPDATE OF THE PLEASANT HILL/A-LINE
SEWER OVERFLOW PROTECTION PROJECT,
DISTRICT PROJECT NO. 4879
PAGE 3
DATE
OF
4
February 11, 1 993
Based on an existing capacity of 140 mgd in the A-Line, the new combined pipeline alternative
would need to carry 210 mgd (the difference between 350 mgd and 140 mgd). Given the
physical constraints and District design requirements, a 1 02-inch diameter pipe size will provide
219 mgd of capacity. Pipelines in this size range come in standard size increments of six
inches. A 102-inch diameter pipe is the smallest standard size available that can carry 210
mgd.
Figure 4 presents the ultimate build out pipeline capacity expected to be needed in the year
2035 and how Infiltration/Inflow (1/1) and average daily wastewater flow compare to this total.
1/1 constitutes the majority of the design flow. Total ultimate capacity for the Pleasant HilI/A-
Line system will exceed projected capacity by approximately 9 mgd.
The decision to build the combined Pleasant Hill/A-Line Interceptor in Marsh Drive raises the
issue as to whether any wastewater flows from sources not addressed in the Pleasant Hill/A-
Line EIR should be included in design flows to determine the size for the interceptor. Two of
these sources of wastewater flow could be the Dougherty Valley and the Tri- Valley Wastewater
Authority (TWA). In addition to the flows expected from the Pleasant Hill and A-Line Relief
Interceptors, a 102-inch diameter pipeline would have adequate capacity to accommodate
currently projected peak wet weather flows from Dougherty Valley (8 mgd). However, the
1 991 Pleasant Hill/A-Line EIR did not address the environment impact of serving the Dougherty
Valley, so additional CEOA documentation would be required before Dougherty Valley flows
could be accepted by the District regardless of the availability of capacity in this reach.
To accommodate the maximum potential flows from TW A now, a combined Pleasant Hill/A-Line
interceptor would require upsizing by one pipe size from 102-inches to 108-inches in the
treatment plant-to-Buchanan Field Golf Course reach of the proposed alignment along Marsh
Drive. The incremental cost to upsize the pipeline by one pipe size in the common reach along
Marsh Drive is estimated to be $725,000.
Some may believe that upsizing this short reach of pipe will not induce future growth until the
remainder of A-Line Relief Interceptor is constructed from Buchanan Field Golf Course to
Ygnacio Valley Road. Construction of the remainder of the A-Line Relief Interceptor is expected
to start in 2003 with completion in 2009. Decisions regarding sizing of the remainder of the
relief interceptor would occur closer to the time of its construction. Others may feel that
upsizing this pipe will have some level of growth inducing effect.
13028 ~L 8:1
STATUS UPDATE OF THE PLEASANT HILL/A-LINE
SEWER OVERFLOW PROTECTION PROJECT,
DISTRICT PROJECT NO. 4879
flllll!IIIIIIM
SUBJECT
PAGE
DATE
4 OF 4
February 11, 1993
Reasons to upsize the pipe would be:
· Avoidance of future construction in Marsh Drive if TWA is eventually served by
CCCSD.
· Potential cost savings if the construction of a future parallel sewer is avoided.
Reasons not to upsize the pipe would be:
· The risk of the $725,000 upsizing cost being unreimbursed if TWA does not
come to the District.
· The possibility of project delay caused by potential public controversy regarding
whether or not the upsizing is warranted growth inducing, and/or properly
addressed under CEOA.
A decision by the Board not to upsize the pipe to accommodate TWA at this time will not
preclude the District from accepting TWA flows at a future date. Figure 5 shows the impacts
on capacity of the Pleasant Hill/A-Line system if flows were accepted from either TWA or
Dougherty Valley. Dougherty Valley flows could be accommodated with no additional facilities.
'TWA flows would require additional facilities to be constructed by about the year 2019. These
additional facilities could be new parallel pipelines, equalization facilities, satellite reclamation
facilities, and/or rehabilitation of abandoned facilities. Methods also may be developed which
could reduce the amount of 1/1 entering the system. The costs associated with any of these
options would need to be borne by the TWA project. At this time, it is staff's assessment that
the TWA project should not be utilized as a basis to upsize the Pleasant Hill Interceptor to a
10B-inch pipe.
Staff requests guidance from the Board as to whether or not to consider the upsizing option
for the project. If the Board wishes to include the upsizing option, additional CEOA
documentation would be prepared.
Staff proposes to notify the public of the District's direction on all of these issues prior to
bringing final recommendations back to the Board in the next few months. A final decision on
any of these issues would not occur until a public hearing has been conducted.
RECOMMENDATION: Receive the staff report and provide guidance as appropriate.
13028-7/91
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Pleasant Hill Sewer Overflow
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Central Contra Costa
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Protection Project
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Figure
Pleasant Hill Sewer Overflow
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5
~ Central ~~~~~ g~~~R~~~g-R~ .Jistrict
PAGE 1 OF 4
POSITION PAPER BOARD MEETINCJ=~bruary 18, 1993
sU'J(ljtHORIZE THE GENERAL MANAGER-CHIEF ENGINEER
TO EXECUTE AGREEMENTS WITH ENTITIES IN ROSSMOOR
REGARDING THE ROSSMOOR SEWER SYSTEM EVALUATION;
ADOPT A RESOLUTION AUTHORIZING EXECUTION OF SAID
AGREEMENTS
NO.
8. ENGINEERING b.
~e"lJfuary 11, 1 993
TYPE OF ACTION
APPROVE AGREEMENT
ADOPT RESOLUTION
SUBMITTED BY
Jay S. McCoy
INITIA TING DEPT.lDIV
Engineering Department/
ISSUE: Agreements are needed between the District and the non-profit mutual benefit
corporations (mutuals) in the community of Rossmoor as well as the Golden Rain Foundation
(GRF) in order for the District to proceed with the evaluation of the sanitary sewers in
Rossmoor.
BACKGROUND: The District's Board of Directors, at its meeting on January 21, 1993,
authorized funds and the execution of an agreement with HDR Engineering to perform an
evaluation of Rossmoor sewers. The evaluation is Phase 1 of a two phase endeavor to resolve
issues related to the Rossmoor sewers. Phase 2 is expected to include performance of work
identified in the evaluation to upgrade the existing sewers and the formal takeover of existing
sewers by the District. Substantial details in terms of the timing, procedures, and allocation
of cost are yet to be resolved with regard to Phase 2.
Prior to the District and its consultant entering Rossmoor property for the purpose of performing
work to evaluate the Rossmoor sewers, agreements must be signed which establish the
responsibilities of the District and Rossmoor. As a result of discussions with District staff, a
form agreement has been prepared and presented to the District by Rossmoor which states that
the District will accept certain sanitary sewers in Rossmoor that meet the terms and conditions
of the original agreement with Rossmoor and that the District will conduct the sewer system
evaluation. Further, the agreement states that Rossmoor will cooperate and provide rights of
entry for the evaluation, assist in communicating with the residents of Rossmoor, provide staff
assistance, and request the developer of Rossmoor to correct deficiencies in the existing
sewers before the District accepts the sewers.
Staff has certain concerns regarding the text and possible interpretations of some of the
language in the proposed agreement. Staff therefor proposes that a resolution be adopted that
sets forth our understanding of the intent of the agreement. This procedure is being suggested
in order to avoid the necessity for the numerous entities in Rossmoor to reexecute the
agreements. The proposed resolution is attached for review. The resolution will be sent to the
mutuals with a copy of the fully executed agreement.
NEJ
REVIEWED AND RECOMMENDED FOR BOARD ACTION
JSM
,c",,.... RAB
KLA
S~(jfHORIZE THE GENERAL MANAGER-CHIEF ENGINEER
TO EXECUTE AGREEMENTS WITH ENTITIES IN ROSSMOOR
REGARDING THE ROSSMOOR SEWER SYSTEM EVALUATION;
ADOPT A RESOLUTION AUTHORIZING EXECUTION OF SAID
AGREEMENTS
POSITION PAPER
PAGE 2
DATE
OF
4
Februarv 11. 1 992
There are 14 mutuals in Rossmoor. It is anticipated that the presidents of each of the fourteen
mutuals will sign individual agreements containing identical text. GRF may also sign a like
agreement. Staff proposes that the General Manager-Chief Engineer be authorized to sign
these agreements on behalf of the District, provided they are presented in acceptable form, so
that the field work portion of the sewer system evaluation may begin.
Staff has determined that this project is exempt from the California Environmental Quality Act
(CEOA) under District CEQA Guidelines Section 17.3, since it involves a planning study for
possible future actions.
RECOMMENDATION: Authorize the General Manager-Chief Engineer to execute agreements
with entities in Rossmoor regarding the Rossmoor sewer system evaluation. Adopt a resolution
authorizing execution of said agreements.
1l0?B ~,w,
RESOLUTZOH HO. 93-
A RESOLUTZOH AUTHORZZZHG STAFF TO PURSUE TAKEOVER OF MAZH
SEWERS WZTHIH ROSSMOOR AND DIRECTIHG STAFF TO ENTER INTO
AGREEMENTS WZTH THE MUTUAL ASSOCZATZOHS WZTHZH ROSSKOOR
AND WZTH THE GOLDEH RAZH FOUHDATZOH
WHEREAS, the Central Contra Costa Sanitary District
(hereinafter "District") entered into an Agreement with the
Rossmoor Corporation as the original developer of the Community
known as Rossmoor, Walnut Creek on September 5, 1963, which
Agreement provided for a mechanism by which the sewers in Rossmoor
could be dedicated and turned over to the District for ownership
and maintenance pursuant to certain conditions; and
WHEREAS, certain disputes arose as to the construction of the
sewers and the ownership and maintenance of same, which disputes
resulted in many of the sewers within Rossmoor not being formally
dedicated to the District or accepted by the District for operation
and maintenance at or about the time the sewers were constructed;
and
WHEREAS, the sewers within Rossmoor, whether maintained by the
District or Golden Rain Foundation (hereinafter "GRF"), are
connected to the District's sewer system and the District has at
all times provided trunk, interceptor and treatment services for
Rossmoor sewage, and likewise citizens of Rossmoor have paid
certain sewer fees and property taxes which have provided revenues
to the District; and
WHEREAS, the citizens of Rossmoor have informally, as well as
through the Mutuals and GRF, expressed their desire for the
District to take over the main sewers within Rossmoor for purposes
of ownership and future maintenance; and
WHEREAS, the District conceptually agrees that the takeover of
all main sewers within Rossmoor by the District under certain
conditions would be appropriate; and
WHEREAS, the District wishes to attempt to cooperate with the
citizens of Rossmoor to attempt to find a reasonable resolution to
this problem, without either contesting or ratifying the terms of
the 1963 Agreement as it may apply to the citizens of Rossmoor.
HOW, THEREFORE, BE ZT RESOLVED:
THAT, the District staff attempt to work cooperatively with
the citizens of Rossmoor through appropriate representative
entities including the Mutual Boards, the Joint Mutual Board and
Resolution No. 93-
1
the GRF Board, to proceed with a process which is intended to
result in the eventual takeover of the sewer mains in Rossmoor by
the District, on terms agreeable to the parties; and the initial
step in this cooperative process shall be to authorize District
staff to enter into certain right-of-entry agreements with the
Mutuals and GRF, said agreement to be in a form substantially
similar to that provided by several of the Mutuals entitled
"Agreement - Rossmoor Sanitary Sewers", which agreement sets forth
certain rights and obligations of the parties in regard to the
District undertaking an engineering study to determine the
existence and extent of sewer problems within Rossmoor; and
THAT, staff is further directed to pursue such actions
subsequent to the completion of the engineering study as may be
appropriate, including preparing such further agreements as may be
required between the Mutuals, GRF and potentially ODC (the
corporate successor to the Rossmoor Corporation) to provide for
funding of such sewer construction activity as may be necessary to
accomplish the takeover of said sewers, and to present any such
further agreements to this Board for consideration.
PASSED AND ADOPTED this 18th day of February, 1993 by the
Board of Directors of the Central Contra Costa Sanitary District by
the following vote:
AYES:
Members:
NOES:
Members:
ABSENT:
Members:
President of the Board of Directors,
Central Contra Costa Sanitary District,
County of Contra Costa, State of California
COUNTERSIGNED:
Secretary, Central Contra Costa
Sanitary District, County of Contra
Costa, State of California
APPROVED AS TO FORM:
Kenton L. AIm,
District Counsel
Resolution No. 93-
2
F:\DMS\KLA.DIR\0065948.01
Central Contra Costa Sanitary District
BOARD OF DIRECTORS
PAGE 1
OF 57
BOARD MEETING OF
February 18, 1993
NO.
9. TREATMENT PLANT a.
SUBJECT
BOARD ACCEPTANCE OF THE 1992 SELF-MONITORING
PROGRAM REPORT
DATE
February 9, 1 993
TYPE OF ACTION
ACCEPTANCE OF
REPORT
SUBMITTED BY
Bhupinder S. Dhaliwal
Laboratory Superintendent
INITIATING DEPT./DIV.
Plant Operations Department
ISSUE: The Central Contra Costa Sanitary District's (CCCSD's) Self-Monitoring program annual
report for 1992 has been prepared for submission to the California Regional Water Quality Control
Board, San Francisco Bay Section. This report is presented to the Board at this time for its
information and acceptance.
BACKGROUND: The treatment plant continued to meet all effluent requirements throughout the
year, with the exception of four coliform violations. Occasionally, coliform bacteria regrow in the
sample line despite our best efforts. This regrowth causes inconsistent coliform disinfection
results. There were also 31 non-zero chlorine residual violations; however, only 12 exceeded the
Regional Water Quality Control Board's enforcement concentration threshold, and none exceeded
the duration threshold. These violations were related to chlorination/dechlorination process
control. Plant Operations Department staff has been working on several projects to improve both
chlorination and dechlorination processes to reduce future violations. The District is investigating
alternate disinfection technologies, for example, ultra-violet (UV) disinfection. The District has just
completed UV pilot plant testing, and the results appear encouraging.
The District performed routine monitoring of selected trace metals and organic pollutants as
requested by the Regional Water Quality Control Board. The results of these tests show that these
pollutants were not detected in the treatment plant effluent in any significant concentrations and
met all National Pollutant Discharge Elimination System (NPDES) permit standards.
There was a total of 11,680 million gallons of wastewater treated for an average daily flow of
34.5 million gallons. This flow is approximately 3 percent higher than in 1991.
;:s~
OMMENDED FOR BOARD AqnoN
BSD JMK
SUBJECT
BOARD ACCEPTANCE OF THE 1992 SELF-MONITORING
PROGRAM REPORT
PAGE
2
OF 57
DATE
February 9, 1993
The treatment plant produced an effluent with an annual average biochemical oxygen demand
(BOD) and total suspended solids (TSS) concentration of 6 mg/L each. This is markedly lower than
our NPDES permit standards of 25 mg/L and 30 mg/L, respectively. The BOD and TSS removal
efficiency for the plant averaged 97 percent each. Solids disposal during this year involved the
incineration of dewatered sludge in the District's multiple-hearth furnaces. Approximately 4,270
tons of furnace ash was disposed of. Of this, approximately 356 tons went to recyclers for
beneficial uses. The remainder went to landfills, mainly in Colusa county.
Upon acceptance of this report by the Central Contra Costa Sanitary District Board of Directors,
the 1992 Annual Self-Monitoring Report will be submitted to the California Regional Water Quality
Control Board.
RECOMMENDATION: Acceptance of the 1992 Annual Self-Monitoring Program Report.
13028-7/91
CENTRAL CONTRA COSTA SANITARY DISTRICT
DISCHARGERS MONITORING PROGRAM REPORT
Central Contra Costa
REPORTING DISCHARGER Sanitarv District
DATE OF REPORT: Februarv 15. 1993
RESOLUTION: 89-170
REPORTING PERIOD: Januarv - December. 1992
COMMENTS:
Enclosed is the 1992 annual report. The report presents yearly totals, averages, maximum, and minimum
values of Central Contra Costa Sanitary District's (CCCSD) influent, final effluent, sludge, ash, and
receiving water Quality parameters. Important data are also presented gr,aphically. All sampling and
, .
analyses were performed in accordance with the Regional Water Quality Control Board's (RWQCB)
Resolution No. 89-170.
The final effluent quality remained in compliance with applicable National Pollutant Discharge Elimination
System (NPDES) standards except for 31 non-zero chlorine residual and 4 total coliform violations. Only
12 of these violations exceeded the RWQCB concentration threshold, and none exceeded the duration
threshold.
The maximum and minimum readings of the chlorine residual violations were 17.5 and 0.2 mg/L,
respectively. The total duration of the violations was approximately 3.5 hours out of 8.760 hours (0.04
percent) of continuous monitoring by on-line chlorine residual analyzers. It should be noted that CCCSD
is investigating alternative disinfection technologies. The District has recently completed an ultraviolet
disinfection pilot plant study. The results appear promising.
The total coliform violations, one each, occurred on April 1, 2, 3, and July 24. In all cases, the chlorine
residual was not sufficient enough for the adequate coliform kill. The chlorine residual ,was increased
immediately after observing the high coliform count. Since the coliform test takes more than 48 hours
before the results become available, the violations on April 2 and 3 were unavoidable.
To the best of my knowledge, the information contained herein is true and correct.
BSD:sb
Attachments
7?) I)~N--f
Signature, Laboratory Superintendent
POD/Laboratory /DischRpt. BSD
INDEX
PART 1- ANNUAL WASTE CHARACTERISTICS AND LOADING
Pace No.
Requirement Compliance Summary, Effluent - Table 1
. . . . . . . . . . . . . . . . . . . . . . . . . .
1
Annual Average Waste Characteristics and.. Loading Summary, Effluent - Table 2 ....... 2
Annual Average Waste Characteristics and Loading Summary, Influent -
Waste (A-DO 1 ) - Table 3 ......................................... 3
Figure 1 - Monthly Average - Influent Flow MGD .............................. 4
Figure 2 - Influent Total Suspended Solids and BOD Loadings ..................... 5
Figure 3 - Influent Oil and Grease Loading .................................. 6
Figure 4 - Final Effluent Suspended Solids Concentration and Mass Emission .......... 7
Figure 5 - Final Effluent Biochemical Oxygen Demand Concentration and
Mass Emission .............................................. 8
Figure 6 - Final Effluent Oil and Grease Concentration and Mass Emission ............ 9
Figure 7 - Total Suspended Solids and BOD Removal Efficiency .................... 10
Figure 8 - Final Effluent Total Coliform MPN/100 ml ........................... 11
Figure 9 - Final Effluent pH ............................................. 12
Final Effluent Fish Toxicity - 96-Hour Bioassay Results - Table 4 ................... 13
Figure 10 - Final Effluent Fish Toxicity ..................................... 14
Annual Average Waste Characteristics and Loading Summary, Effluent
Nutrients - Table 5 .............................................. 15
Figure 11 - Final Effluent Ammonia and Nitrate-Nitrogen Concentration .............. 16
PART 1- ANNUAL WASTE CHARACTERISTICS AND LOADING (Continued)
Pace No.
Figure 12 - Final Effluent Organic Nitrogen, Nitrite Nitrogen, and
Total Phosphorus Concentration .......... . . . . . . . . . . . . . . . . . . . . . . .. 17
Annual Average Waste Characteristics and Loading Summary, Effluent -
Trace Metals - Table 6 (Three Pages) . . . . . . . . . . . . . . . .. .............. 18 - 20
Annual Average Waste Characteristics and Loading Summary, Effluent -
Trace Metals - Table 7 A (Two Pages) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 - 22
Annual Average Waste Characteristics and Loading Summary, Effluent -
Trace Metals - Table 7B (Three Pages) . . . . . . . . . . . . . . . . . . . . . . . . .. . . .. 23 - 25
Final Effluent Suspended Solids, Monthly Maximum, Minimum, and
Average - Table 8 .............................................. 26
Final Effluent BOD, Monthly Maximum, Minimum, and Average - Table 9 ............. 27
Final Effluent Oil and Grease, Monthly Maximum, Minimum, and
Average - Table 10 ............................................. 28
Final Effluent pH, Monthly Maximum, Minimum, and Average - Table 11 ............. 29
Final Effluent Settleable Matter, Monthly Maximum, Minimum, and
Av_erage - Table 12 ............................................. 30
Final Effluent Total Coliform, Monthly Maximum, Minimum, and
Average - Table 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 31
Final Effluent Organic Nitrogen, Monthly Maximum, Minimum, and
Average - Table 14 ............................................. 32
Final Effluent Ammonia Nitrogen, Monthly Maximum, Minimum, and
Average - Table 15 ............................................. 33
Final Effluent Nitrate Nitrogen, Monthly Maximum, Minimum, and
Average - Table 16 .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 34
Final Effluent Nitrite Nitrogen, Monthly Maximum, Minimum, and
Average - Table 17 ............................................. 35
Final Effluent Total Phosphorus, Monthly Maximum, Minimum, and
Average - Table 18 ............................................. 36
POD/DHALlWALllndex.SMR
PART I - ANNUAL WASTE CHARACTERISTICS AND lOADING (Continued)
Pace No.
Final Effluent Un-ionized Ammonia-N, Monthly Maximum, Minimum, and
Average - Table 19 ............................................. 37
Solids Handling Summary - Table 20 ...................................... 38
PART II - RECEIVING WATER CHARACTERISTICS
Requirement Compliance Summary - Table 21 ............................... 39
Total Coliform, MPN/100 ml, Monthly Maximum, Minimum, and
Average - Table 22 ............................................. 40
Figure 13 - Total Coliform, MPN/100 ml, Monthly Average ....................... 41
pH, Monthly Maximum, Minimum, and Average - Table 23 ....................... 42
Figure 14 - pH, Monthly Average ........................................ 43
Dissolved Oxygen, Monthly Maximum, Minimum, and Average - Table 24 ............ 44
Figure 15 - Dissolved Oxygen, Monthly Average - Saturation ..................... 45
-
Figure 16 - Dissolved Oxygen, Monthly Average - Concentration ................... 46
Un-ionized Ammonia Nitrogen, mg/l, Monthly Maximum, Minimum, and Average -
Table 25 ..................................................... 47
Figure 17 - Un-ionized Ammonia Nitrogen,m mg/l, Monthly Average ................ 48
Receiving Water Turbidity - Table 26 ...................................... 49
Figure 18 - Turbidity ................................................. 50
Figure 19 - Aerial Photograph, Receiving Water Station ......................... 51
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-2-
TABLE 3
PARAMETER FLOW BOD SUSPENDED SOLIDS OIL AND GREASE
MONTH AVG DAILY MAX DAILY MIN DAILY MG/L KG/DAY MG/L KG/DA Y MG/L KG/DA Y
(MGDI (MGDI IMGDI
JANUARY 35.6 48.8 32.6 197 26520 216 29189 46.6 6094.8
FEBRUARY 45.5 80.0 35.6 175 29316 201 34114 27.3 4762.2
MARCH 42.3 61.1 37.9 169 26869 212 33861 32.6 4912.8
APRIL 36.7 30.8 32.6 204 28263 243 33741 36.1 4969.8
MAY 34.7 36.0 32.9 209 27467 246 32209 31.9 4166.2
JUNE 32.6 34.1 30.9 242 29726 265 32654 34.6 4216.6
JULY 30.9 33.1 28.9 219 26766 228 26612 37.9 4432.1
AUGUST 32.1 35.4 30.1 201 24199 238 28846 62.0 6163.8
-
SEPTEMBER 32.5 34.4 30.1 199 24493 237 29076 39.2 4712.4
OCTOBER 32.9 36.7 28.4 185 22959 240 29885 34.5 4119.8
NOVEMBER 33.5 37.4 31.0 184 23083 221 27996 27.9 3400.8
DECEMBER 41.9 68.5 35.2 173 27954 216 34007 37.0 7387.2
ANNUAL 33.0 ..............:..:::J 196 26381 230 31015 36.5 4943.9
AVERAGE ..........................1
CENTRAL CONTRA COSTA SANITARY DISTRICT
ANNUAL AVERAGE WASTE CHARACTERISTIC AND LOADING SUMMARY
(Unless otherwise noted, figures in the table are average values)
Influent (A-001)
YEAR 1992
-3-
FIGURE 1
ANNUAL NPDES REPORT, 1992
INFLUENT FLOW
90
00----....---.........-......--.....-...--..-.-.--...-...----.......-..-.-......-.-...--.....-..-................-.......-.....-...........................---...
70 ...--........... ...-..-.. -...-..--....-.---..-....-.-..............-...-.---....-....-........................-....-..............-.---.....-.-----....-..---........
60 ..........--- .-...........--.-... .--..-..-...-.-.....-...--.....-.-..-.-...--.-....-..........-..-...-..-........----.-.-.--..........-... ...--...
o
~
~
.tIO
30
20
2
:3
5
7
e
4
6
MONTH 1992
I.... DAILY MAXIWM -a- DAILY MlNIWM ... DAILY AVERAGE
-4-
~--
9
10
12
11
~
co 32
"C
a
.:lC: 30
8
o 28
.....
FIGURE 2
ANNUAL NPDES REPORT, 1992
INFLUENT TSS and BOD LOADINGS
40
38 ....-.....................-.....-.........-........-...........-........-...........--.....--..-........-..................-...-...................-.....................
36 .......-............-....-....-..-...-.............-...--..-.-..--.....-...-.-....-..-......................-....-..-..........-...................................
34 ..........-............--
26
24
22
20
2 3 4 5 6 7 8 9 10 11 12
MONTH 1992
I~TSS _BOD I
-5-
8000
7000
6000
5000
>-
QS
"C 4000
C>>
..:.::
3000
2000
1000
0
FIGURE 3
ANNUAL NPDES REPORT, 1992
INFLUENT OIL & GREASE LOADING
~n._.._........__.......n."".._"""""".".U"."."..""""""""""""".......-.....--...............-..................-............................................................
2 3 4 5 6 7 8 9 10 11 12
MONTH 1992
-6-
FIGrnRE 4
ANNUAL NPDES REPORT I 1992
FINAL EFFLUENT TOTAL SUSPENDED SOLIDS
CONCENTRATION and MASS EMISSION
16 1600
14 ..................................................................................................................................................-............................................ 1 ~OO
~ 12 .................................................................................................................................................................-............................. 1200 i
~
Z 10 .......-..... .................. .........................-...................-.......-....................................................-.....-........................ ......... 1000
o
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a:
t-
Z
~
Z
o
o
4 ....................--...........-...............-......--................................................................-.-........................................................
2 ................, NPDES LIMIT = 30 MGIL 1...................................._.................._......................................................... 200
o
10
11
12
7
e
9
2
:3
4
5
6
MONTH 1992
I..... CONCENTRATION -a- MASS EMISSION
-7-
o
Z
o
en
en
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w
en
en
<
:E
FIGURE 5
ANNUAL NPDES REPORT, 1992
FINAL EFFLUENT BOD (5 day@ 2OC)
CONCENTRATION and MASS EMISSION
16
1 4 ..........................................................................-....................................................................................................................
1 2 ............................................................-.......................................-...........................................................................-..........
-=:.
Ol
E
z 10 .............. ............. ...-..-............-........................................................................................................................................
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a:
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z
w
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4 .......................................................................................................................
2 ..........................1 NPDES UMIT = ~ MG/L t.......................................................................................................... 200
o
9
10
11
2
3
4
5
6
7
8
MONTH 1992
I..... CONCENTRATION -a- MASS EMISSION
-8-
1600
1400
1200
~
:!!
1000 ~
Z
0
CiS
en
:i
w
m
<
:E
12
FIGURE 6
ANNUAL NPDES REPORT, 1992
FINAL EFFLUENT OIL & GREASE
CONCENTRATION and MASS EMISSION
5
4.5
:::::.
a
E
-
z
0
~
a:
I-
Z
W
0
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0
0
-...--.-...........-..........-........-.-.............................--..-......-.....................-...--....-...-.--.................---...........---........-..............-......-.......-..-..........-.....-
NPDES UMIT -10 MGIL AVERAGE
20 MGIL MAXIMUM
0.5 ...... .......-.-..........-..........................................--...-.....-.--....-..........................-................-.--............--.-......-.........
o
10
11
12
e
9
2
3
5
6
7
4
MONTH 1992
I.... CONCENTRATION -a- MASS EMISSION
-9-
400
350
>-
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0
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en
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100
FIGURE 7
ANNUAL NPDES REPORT, 1992
TSS and BOD REMOVAL EFFICIENCIES
99 .-............-.......-............-......-...-................---.................--..-.........-.--.........-.........-.....-..........----.-..-
97
9a .-.-.............-...-...................--....-..............-.-.----...---....--
-'
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a:
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96
95
94
93
92
91
90
2 3 4 5 6 7 8 9 10 11 12
MONTH 1992
I~TSS _BOD I
-10-
E
8
.....
-
z
a..
:!
FIGURE 8
ANNUAL NPDES REPORT, 1992
FINAL EFFLUENT TOTAL COLIFORM
(5 DAY MEDIAN)
120
100 .................-...--....................-...i NPDES UMIT ... 240 MPNI100ML ~.__..._..........._...._................._..._.
eo ......-.........................---...............................-..............--.........---..-.....................................--.-..............-....-
LT
40
60 ..................................-.......-.....
......-......-...-.....1 L T - LESS THAN ~........._....-
.-.....-.-...................-.......---...--..-..--....---.......-...---...--
20 ...............
o
2 :3 4 5 6 7 e 9 10 11 12
MONTH 1992
-11-
FIGURE 9
ANNUAL NPDES REPORT, 1992
FINAL EFFLUENT pH
7.6
7.41.-.---.----..-.....--.-..-....................................-......-............................................................................................................
7.2 ............--..-.-.-..-.........--...-.--....-....................-.....-.-.-...--...-........-.......-..--.-..-....-.......-...................-
7 ------..............-1 NPDES UMIT ""' 9.0 MAXIMUM. 8.0 MINIMUM ~._..._.---........._.._-.-..-..-
t:
z
::> 6.B .-.-...-....--.....-.....-....-...........-.-..-.........-.....-.....---...-....-.....-..-..-.....-..-...........-....-......---.-..-...-.....--...-.-..
:I:
0.
6.6 - -.--......-.......---..-. .-...-----.-.-..-..--.......---..-.................-..-..-.-..--.........-......-.-......---...........
6.2.-.....-.......-...........................-..-......................-......................-.....-....................-.....................-.............................-...................
6
2
3
41
5
6
7
e
9
10
11
12
MONTH 1992
-12-
TABLE 4
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992
96-HOUR, FLOW-THROUGH BIOASSY RESULTS SUMMARY
(Undiluted Sample)
Final Effluent (E-001-S)
MONTH DATE STICKLEBACK FATHEAD MINNOW
PERCENT SURVIVAL PERCENT SURVIVAL
January 6 100 90
22 100 100
February 10 85 100
24 95 85
March 9 90 100
27 100 90
April 6 85 100
20 95 95
May 1 1 100 100
26 80 80
June 19 95 100
25 85 100
July 17 95 100
28 100 95
August 15 100 100
31 100 95
September 14 95 100
October 9 95 90
26 90 90
November 2 100 85
16 100 100
December 22 95 95
28 94 100
ANNUAL 94 95
AVERAGE
POD/Laboratory /Table5 .SMR
.. 13-
FIGURE 10
ANNUAL NPOES REPORT, 1992
FINAL EFFLUENT FISH TOXICITY
(UNDILUTED SAMPLE)
100
95 ..._m_......
....I
<
>
:>
a:
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fJ)
(/.
85 ............
eo ....-.....-..
75 ................
70
2 3 4 5 6 7 e 9 10 11 12
MONTH 1992
I ~ STICKLEBACK . FATHEAD MINNOW I
-14-
TABlE 5
CENTRAL COIITRA msTA SANITARY DISTRICT
AltIUAl. AVERAGE WASTE CHARACTERISTICS AID LOADING SUIWlY
(Unless otherwise noted, figures in the table are average values)
Final Effluent (E-001-S)
YEAR 1992
PARAMETER AMMONIA NITRATE NITRITE TOT. ORG. TOTAL
NITROGEN PHOSPHORUS
MONTH MG/L KG/DAY MG/L KG/DAY MG/L KG/DAY MG/L KG/DAY MG/L KG/DAY
JANUARY 24.3 3069.0 0.9 112.7 <0.1 <9.5 2.5 314.5 5.0 628.3
FEBRUARY 21.2 3414.5 1.3 223.5 <0.1 <15.1 3.2 499.9 4.3 693.4
MARCH 21.9 3422.7 1.0 156.2 0.2 25.1 2.6 406.9 4.3 651.3
APRIL 19.9 2675 .0 1.6 224.0 0.7 88.6 2.5 347.5 5.0 680.9
MAY 20.1 2576.4 1.4 176.4 0.2 27.5 2.3 294.5 5.8 753.9
JUNE 19.6 2326.5 1.4 171.9 0.2 25.9 3.0 367.2 5.7 691.1
JULY 20.2 2262.1 1.8 202.3 0.2 19.8 2.2 251. 2 4.9 554.1
AUGUST 17.6 2053.7 2.1 250.0 0.4 43.8 2.2 256.6 4.9 564.4
SEPTEMBER 21.8 2587.4 1.7 197.7 0.4 44.0 2.5 297.2 4.4 522.1
OCTOBER 22.1 2660.2 1.8 221.0 0.2 20.5 2.4 286.6 4.0 474.5
NOVEMBER 22.9 2793.5 1.5 175.4 0.1 16.2 2.1 249.5 3.5 418.8
DECEMBER 21.6 3254.4 1.0 137.7 0.2 22.0 2.6 381.0 3.6 541.3
ANNUAL 21.1 2757.9 1.4 187.4 0.2 29.8 2.5 329.4 4.6 597.8
AVERAGE
-15-
FIGURE 11
ANNUAL NPDES REPORT, 1992
ANAL EFFLUENT AMMONIA-N and NITRA TE-N
40
35 ---_...~_._.._-
30 ._.._---~.._----_..__.._---_.. ----------.---
::::..
0
E
25 -....--.....-..
Z -~
0 --------
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1= 20 .. ......-
Z
W
0 15 ..---....-.............-....--.------..-------..--------..---..-.-....------
Z
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s a II a B
B - . B B
0- a -
0 1 . 3 .4 I T 9 . T
2 5 6 7 e 10 11 12
MONTH 1992
\___ AMMONIA-N -B- NITRATE-N I
-16-
e
FIGURE 12
ANNUAL NPDES REPORT, 1992
FINAL EFFLUENT ORGANIC-Nt NITRITE-Nt
and TOTAL PHOSPHORUS
7 ........-.......--.....-...-.--...-.--..-.-....-..-....-..----.----..---.------.----.......................-............
~
6 ...............-...-...--.....-...-....--..-.-.--.--.....-.-..--...............-....--...-...-..-.......--.........-...........-..--.....-.......-.-..
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-17 -
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CENTRAL ID1TRA COSTA SAIIITARY DISTRICT
TABlE 7A
1992 MIIJAI. AVERAGE WASTE CHARACTERISTICS AND LOADING SlIIWlY
(Unless Otherwise IIoted. Figures in the Table Are Average Values)
Final Effluent (E-001-S)
24-1Iour CoIpsite
POl. YIIJCLEAR AlKMATIC
PHEIIOlIC aJI'ClItI)S HYDROCAR_S
par_ter CYMIDE
Week of: /Lg/l kg/day /Lg/l kg/day /Lg/l kg/day
01/02/92 <10 <1.26
01/09/92 <10 <1.28
01/16/92 <10 <1.29
01/22/92 <10 <1.22 <5 <0.6 <32 <3.7
02/05/92 10 1.3
02/10/92 20 3.2
02/18/92 <10 <1.6
02/27192 <10 <1.4 <7 <1.1 <16 <2.5
03/05/92 <10 <1.7
03/12/92 <10 <1.5 <5 <0.8 <25 <3.8
03/19/92 <10 <1.5
03/26/92 <10 <1.4
04/02/92 <10 <1.5
04/07/92 <10 <1.4
04/13/92 <10 <1.4
04/22/92 20 2.4 <5 <0.6 <28 <3.4
04/28/92 <10 <1.3
05/06/92 <10 <1.3 <5 0.6 <2.3 <0.30
05/13/92 <10 <1.3
05/18/92 <10 <1.3
OS/26/92 <10 <1.3
06/03/92 <10 <1.2
06/10/92 <10 <1.2 <5 <0.6 <27 <3.18
06/17/92 <10 <1.2
06/24/92 <10 <1.2
07/01/92 10 1.2
07/08/92 <10 <1.1
07/15/92 <10 <1.1
07/22/92 <10 <1.1 <5 <0.5 <28 <2.8
07/29/92 <10 <1.1
08/06/92 <10 <1.2
POO/Laboratory/TabLe7A.SMR, Pg. 1
-21-
CENTRAL CONTRA COSTA SANITARY DISTRICT
TABLE 7A
1992 ANNUAl. AVERAGE WASTE CHARACTERISTICS AND LOADING SlMWlY
(Unless Otherwise Noted, Figures in the Table Are Average Values)
Final Effluent (E-001-S)
24-Hour ~ite
POL YIIJClEAR ARCICATIC
PHEIIOLIC COFCIIlDS HYDROCARIIOIIS
Par_ter CYANIDE
\leek of: /Lg/l kg/day /Lg/l kg/day /Lg/l kg/day
08/13/92 <10 <1.2
08119/92 <10 <1.1 <5 <0.5 <28 <3.4
08/27192 <10 <1.1
09/09/92 <10 <1.1
09/16/92 <10 <1.1 8 0.9 <28 <3.3
09/26/92 <10 <1.1
10/07192 <10 <1.1
10/14/92 <10 <1.1
10/21/92 <10 <1.1 6 0.7 <28 <3.4
10/29/92 <10 <1.1
11/04/92 <10 <1.1 5 0.6 <28 <3.3
11/11/92 <10 <1.1
11/19/92 <10 <1.1
11/25/92 12 1.4
12/02/92 8 1.0 <5 <0.6 <28 <3.3
12/09/92 8 2.0
12/14/92 5 0.7
12/23/92 4 0.5
MAXIMUM 20 3.2 8 0.9 <32 <3.8
MINIMUM <10 <1.1 <5 <0.5 <2.3 <0.3
<1n <1-4 <0; <0_7 <'0; <3_0
POO/Laboratory/Table7A.SMR, Pg. 2
-22-
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Q.
TABLE 8
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY
(24-Hour Composite)
Final Effluent (E-001-S)
TOTAL SUSPENDED SOUDS
PARAMETER CONCENTRATION LOADING
No.of
mgn kg/day No. of Via-
Month MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE Samples lations
JANUARY 18 2 7 2182 241 910 31 0
FEBRUARY 16 3 7 2923 392 1102 29 0
MARCH 14 2 6 2562 280 962 31 0
APRIL 12 3 6 1470 406 823 30 0
MAY 13 3 7 1658 384 863 31 0
JUNE 18 3 7 2128 366 883 30 0
JULY 22 2 6 2412 237 651 31 0
AUGUST 8 3 5 954 328 533 31 0
SEPTEMBER 8 3 5 1176 358 583 30 0
OCTOBER 9 2 6 1141 249 760 31 0
NOVEMBER 11 4 6 1511 463 771 30 0
DECEMBER 14 4 7 1971 532 1064 31 0
ANNUAL 366 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
POD/Lab1/Table8.SMR
-26-
TABLE 9
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY
(24-Hour Composite)
Final Effluent (E-001-S)
BIOCHEMICAL OXYGEN DEMAND
PARAMETER CONCENTRATION LOADING
No. of
mgn kg/day No. of Vio-
Month MAXIMUM MINIMUM AVERAGE, MAXIMUM MINIMUM AVERAGE Samples lations
JANUARY 15 4 7 1845 485 853 31 0
FEBRUARY 13 3 7 1966 437 1162 29 0
MARCH 8 3 5 1364 419 757 31 0
APRIL 15 4 7 1837 541 870 28 0
MAY 9 4 6 1142 518 825 21 0
JUNE 8 1 6 974 124 766 21 0
JULY 11 3 6 1255 329 622 23 0
AUGUST 7 3 4 711 329 505 22 0
SEPTEMBER _ 7 3 4 831 351 522 22 0
OCTOBER 7 2 4 891 239 534 22 0
NOVEMBER 6 2 5 824 238 551 20 0
DECEMBER 22 0
ANNUAL 292 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
POD/Laboratory/Table9.SMR
-27-
TABLE 10
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY
(Grab Sample)
Final Effluent (E-001-S)
OIL AND GREASE
PARAMETER CONCENTRATION LOADING
No. of
mgn kg/day No. of Vio-
Month MAXIMUM. MINIMUM AVERAGE,., MAXIMUM MINIMUM AVERAGE Samples lations
JANUARY 1.0 0.1 0.5 122.9 11.9 63.6 5 0
FEBRUARY 2.4 1.3 1.8 432.1 233.2 314.4 4 0
MARCH 2.0 0.2 1.3 302.4 28.0 188.8 4 0
APRIL 4.8 1.1 2.6 646.4 148.8 345.2 3 0
MAY 2.3 1.3 1.8 282.8 167.8 225.3 2 0
JUNE 1.0 0.1 0.6 117.8 2.3 72.9 4 0
JULY 1.2 0.8 1.0 132.5 95.2 113.6 2 0
AUGUST 2.5 1.1 1.8 296.0 126.5 211.3 2 0
SEPTEMBER _ 2.8 0.4 1.6 317.9 47.2 182.5 2 0
OCTOBER 2.5 0.3 1.4 279.4 35.4 157.4 2 0
NOVEMBER 3.9 1.5 2.7 455.2 173.7 314.5 2 0
DECEMBER 1.9 0.4 1.1 481.8 49.6 265.7 2 0
ANNUAL 34 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
POD/Lab 1 /Table 1 O.SMR
-28-
TABLE 11
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY
(Grab Sample)
Final Effluent (E-001-S)
pH
PARAMETER CONCENTRATION
No. of
UNITS No. of Vio-
Month .. . MAXIMUM. MINIMUM. AVERAGE Samples lations
JANUARY 6.8 6.4 6.6 31 0
FEBRUARY 6.9 6.5 6.1 29 0
MARCH 6.9 6.5 6.1 31 0
APRIL 6.1 6.4 6.5 30 0
MAY 6.1 6.2 6.5 31 0
JUNE 6.1 6.2 6.4 30 0
JULY 6.8 6.2 6.5 31 0
AUGUST 6.1 6.0 6.4 31 0
SEPTEMBER 1.0 6.2 6.5 30 0
OCTOBER 6.1 6.4 6.5 31 0
NOVEMBER 6.9 6.4 6.5 29 0
DECEMBER 6.8 6.4 6.5 31 0
ANNUAL 365 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
POD/Laboratory/Table 11 .SMR
-29-
TABLE 12
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY
(Grab Sample)
Final Effluent (E-001-S)
SETTLEABLE MATTER
PARAMETER CONCENTRATION
No. of
m1/1Jhour No. of Via-
Month MAXIMUM MINIMUM AVERAGE SMlpI.. lations
JANUARY <0.1 <0.1 <0.1 31 0
FEBRUARY <0.1 <0.1 <0.1 29 0
MARCH <0.1 <0.1 <0.1 31 0
APRIL <0.1 <0.1 <0.1 30 0
MAY <0.1 <0.1 <0.1 31 0
JUNE <0.1 <0.1 <0.1 30 0
JULY <0.1 <0.1 <0.1 31 0
AUGUST <0.1 <0.1 <0.1 31 0
SEPTEMBER <0.1 <0.1 <0.1 30 0
OCTOBER <0.1 <0.1 <0.1 31 0
NOVEMBER <0.1 <0.1 <0.1 29 0
DECEMBER <0.1 <0.1 <0.1 31 0
ANNUAL 365 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
POD/Lab1/Table12.FRM
-30-
TABLE 13
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY
(Grab Sample)
Final Effluent (E-001-S)
TOTAL COLIFORM
PARAMETER SINGLE SAMPLE FIVE-DAY MEDIAN
No. of No. of
MPN/100 ml MPN/100 ml Samples Vio-
Month MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE lations
JANUARY 1100 <18 < 111 230 <18 <52 25 0
FEBRUARY 230 <18 <51 40 <18 <21 21 0
MARCH 1400 <18 <173 130 <18 <47 22 0
APRIL 2400 <18 <216 330 <18 <68 22 3
MAY 331 <18 <51 <18 <18 <18 21 0
JUNE 2400 <18 <133 <18 <18 <18 22 0
JULY >16000 <18 >612 70 <18 <28 24
AUGUST 9200 <18 <455 18 <18 <18 21 0
SEPTEMBER 5400 <18 <475 110 <18 <24 23 0
OCTOBER 131 2 <25 <18 2 <18 22 0
NOVEMBER 1700 2 <108 79 2 <13 23 0
DECEMBER 3501 2 336 170 <18 <69 23 0
ANNUAL > 1 6000 269 4
MAXIMUM
ANNUAL
MINIMUM
ANNUAL <33
AVERAGE
POD/Laboratory/Table13.SMR
~31-
TABLE 14
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY
(24-Hour Composite Sample)
Final Effluent (E-001-S)
ORGANIC-N
PARAMETER CONCENTRATION LOADING
No. of No. of
mgll kg/day Samples Vio-
Month MAXIMUM.: , MINIMUM.: ,. AVERAGE i iMAXIMUM MINIMUM AVERAGE lations
JANUARY 3.6 1.0 2.6 466.3 123.6 314.5 8 0
FEBRUARY 7.8 2.0 3.2 1050.4 291.5 499.9 8 0
MARCH 4.0 1.9 2.6 614.7 266.2 406.9 10 0
APRIL 3.1 2.1 2.5 421.1 283.5 347.5 5 0
MAY 2.8 1.8 2.3 368.1 233.5 294.5 3 0
JUNE 4.2 2.0 3.0 502.6 239.8 367.2 5 0
JULY 2.8 1.8 2.2 321.5 198.6 251.2 4 0
AUGUST 2.5 2.0 2.2 300.3 230.9 256.6 4 0
SEPTEMBER _ 3.0 2.2 2.5 352.4 262.2 297.2 5 0
OCTOBER 3.3 1.9 2.4 '368.8 233.3 286.6 4 0
N'OVEMBER 2.4 1.9 2.1 297.5 219.7 249.5 4 0
DECEMBER 3.4 1.8 2.6 555.0 262.4 381.0 5 qO
ANNUAL 65 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
POD/Laboratory/Table 14.SMR
-32-
TABLE 15
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY
(24-Hour Composite Sample)
Final Effluent (E-001-S)
AMMONIA-N
PARAMETER CONCENTRATION LOADING
No. of No. of
mgn kg/day Samples Vio-
Month MAXIMUM, MINIMUM: ; AVERAGE;: . MAXIMUM MINIMUM AVERAGE lations
JANUARY 28.8 17.6 24.3 3716.6 2168.6 3069.0 31 0
FEBRUARY 28.6 11.4 21.2 4894.3 2261.1 3414.5 29 0
MARCH 25.0 16.9 21.9 5477.3 2795.3 3422.7 31 0
APRIL 24.6 16.5 19.9 3205.2 2321.3 2675.0 30 0
MAY 25.6 13.3 20.1 3302.2 1743.1 2576.4 31 0
JUNE 25.7 14.3 19.6 3038.8 1714.5 2326.5 30 0
JULY 25.3 17.3 20.2 2773.4 1931.4 2262.1 31 0
AUGUST 23.2 8.2 17.6 2722.0 978.3 2053.7 31 0
SEPTEMBER _ 24.8 16.6 21.8 3585.5 1884.4 2587.4 30 0
OCTOBER 24.8 17.1 22.1 3229.1 2096.3 2660.2 31 0
NOVEMBER 24.8 20.8 22.9 3068.9 2405.4 2797.5 29 0
DECEMBER 27.0 14.8 21.6 5564.8 2588.7 3254.4 31 0
ANNUAL 365 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
POD/Laboratory/Table15.SMR
-33-
TABLE 16
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY
(24-Hour Composite Sample)
Final Effluent (E-001-S)
NITRITE-N
PARAMETER CONCENTRATION LOADING
No. of No. of
mgn kg/day Samples Vlo-
Month MAXIMUM. MINIMUM. . AVERAGE. MAXIMUM MINIMUM AVERAGE lations
JANUARY 0.19 0.03 0.07 23.3 3.7 9.5 9 0
FEBRUARY 0.14 0.06 0.09 21.3 9.7 15.1 8 0
MARCH 0.37 0.10 0.17 53.4 16.3 25.1 9 0
APRil 2.1 0.08 0.66 274.9 11.0 88.6 5 0
MAY 0.34 0.08 0.21 44.2 10.7 27.5 4 0
JUNE 0.36 0.12 0.22 43.1 14.1 25.9 5 0
JULY 0.24 0.10 0.17 27.9 11.5 19.8 4 0
AUGUST 0.74 0.20 0.39 81.4 23.1 43.8 4 0
SEPTEMBER 0.58 0.20 0.37 69.3 22.6 44.0 5 0
OCTOBER 0.20 0.10 0.15 28.4 16.3 20.5 4 0
NOVEMBER 0.20 0.11 0.14 19.6 12.6 16.2 4 0
DECEMBER 0.20 0.12 0.15 27.9 13.4 22.2 5 0
ANNUAL 66 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
POD/Laboratory/Table16.SMR
-34-
TABLE 17
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY
(24-Hour Composite Sample)
Final Effluent (E-001-S)
NITRA TE-N
PARAMETER CONCENTRATION LOADING
No. of No. of
mgn kg/day Samples Vlo-
Month MAXIMUM. MINIMUM AVERAGE, ,MAXIMUM MINIMUM AVERAGE lations
JANUARY 1.4 0.3 0.9 182.5 35.6 112.7 9 0
FEBRUARY 3.8 0.4 1.3 734.4 67.3 223.5 8 0
MARCH 1.3 0.6 1.0 182.6 97.8 156.2 9 0
APRIL 2.1 1.1 1.6 274.9 156.2 224.0 5 0
MAY 1.9 0.8 1.4 246.4 105.2 176.4 4 0
JUNE 2.6 0.8 1.4 311.7 103.2 171.9 5 0
JULY 2.4 1.5 1.8 272.6 172.2 202.3 4 0
AUGUST 3.8 0.9 2.1 439.4 94.6 250.0 4 0
SEPTEMBER 2.8 0.8 1.7 319.5 94.2 197.7 5 0
OCTOBER 2.0 1.8 1.8 235.8 209.4 221.0 4 0
NOVEMBER 1.8 1.0 1.5 202.4 127.5 175.4 3 0
DECEMBER 1.2 0.8 1.0 167.6 112.6 137.7 5 0
ANNUAL 65 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
POD/Laboratory/Table' 7.SMR
-35-
TABLE 18
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY
(24-Hour Composite Sample)
Final Effluent (E-001-S)
TOTAL PHOSPHORUS
PARAMETER CONCENTRATION LOADING
No. of No. of
mgn kg/day Samples Vio-
Month MAXIMUM MINIMUM AVERAGE. MAXIMUM MINIMUM AVERAGE lations
JANUARY 6.1 4.0 5.0 753.7 500.8 628.3 9 0
FEBRUARY 6.0 2.2 4.3 893.0 425.2 693.4 8 0
MARCH 5.2 3.6 4.3 838.5 521.8 651.3 9 0
APRIL 5.2 4.8 5.0 725.1 628.2 680.9 5 0
MAY 6.1 5.4 5.8 791.2 710.0 753.9 4 0
JUNE 6.1 5.4 5.7 743.6 655.7 691.1 5 0
JULY 5.4 4.5 4.9 595.8 516.7 554.1 4 0
AUGUST 5.5 4.5 4.9 636.0 494.9 564.4 4 0
SEPTEMBER 5.4 4.0 4.4 616.2 476.8 522.1 5 0
OCTOBER 5.5 2.9 4.0 614.6 353.0 474.5 4 0
NOVEMBER 4.2 2.8 3.5 510.0 333.4 418.8 4 0
DECEMBER 4.4 2.9 3.6 872.1 422.7 541.3 5 0
ANNUAL 66 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
POD/Laboratory/Table18.SMR
-36-
TABLE 19
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL WASTE CHARACTERISTIC AND LOADING SUMMARY
(Grab Sample)
Final Effluent (E-001-S)
UN-IONIZED AMMONIA-N
CONCENTRATION
PARAMETER mgll No. of No. of
Samples Violations
Month MAXIMUM MINIMUM AVERAGE
JANUARY 0.04 0.02 0.04 5 0
FEBRUARY 0.05 0.02 0.04 4 0
MARCH 0.05 0.03 0.04 4 0
APRIL 0.04 0.01 0.03 5 0
MAY 0.04 0.02 0.03 4 0
JUNE 0.03 0.02 0.03 4 0
JULY 0.04 0.02 0.03 5 0
AUGUST 0.04 0.01 0.02 4 0
SEPTEMBER 0.05 0.02 0.03 4 0
OCTOBER 0.06 0.03 0.05 5 0
NOVEMBER 0.06 0.02 0.04 4 0
DECEMBER 0.06 0.02 0.04 5 0
ANNUAL 54 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
POD/Laboratory/Table19.SMR
-37 -
TABLE 20
CENTRAL CONTRA COSTA SANITARY DISTRICT
ANNUAL AVERAGE WASTE CHARACTERISTICS
SOLIDS HANDLING SUMMARY
JANUARY - DECEMBER, 1992
CENTRIFUGED SLUDGE (WASTE-002)
CHARACTERISTICS DISPOSAL - TONS/DAY*
MONTH PERCENT TOTAL PERCENT SLUDGE ASH
SOLIDS (AVG.) MOISTURE (A VG.)
JANUARY 21.8 78.2 0 12.8
FEBRUARY 23.2 76.8 0 9.2
MARCH 22.8 77.2 0 11.1
APRIL 22.2 77.8 0 13.8
MAY 22.4 77.6 0 10.2
JUNE 22.1 77.9 0 10.8
JULY 22.5 77.5 0 11.8
AUGUST - 23.1 76.9 0 12.1
SEPTEMBER 23.0 77.0 0 13.1
OCTOBER 22.4 77.6 0 11.7
NOVEMBER 22.4. 77.6 0 10.6
DECEMBER 23.2 76.8 0 13.6
MAXIMUM 23.2 78.2 0 13.8
MINIMUM 21.8 76.8 0 9.2
AVERAGE 22.6 77.4 0 11.7
* WET WEIGHT
POO/laboratorylT able20.0.SMR
-38-
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TABLE 22
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL RECEIVING WATER DATA SUMMARY
TOTAL COLIFORM
PARAMETER MPN/100 ml
No. of No. of
Month MAXIMUM MINIMUM AVERAGE Samples Violations
JANUARY 7.9 7.7 7.8 5 0
FEBRUARY 130 20 77 5 0
MARCH 1800 130 552 5 0
APRIL 220 45 93 5 0
MAY 78 18 40 5 0
JUNE 78 <18 <36 5 0
JULY 45 <18 <24 5 0
AUGUST 230 18 88 5 0
SEPTEMBER 78 <18 36 5 0
OCTOBER 110 <18 41 5 0
NOVEMBER 490 <18 <229 5 0
DECEMBER 2400 230 1042 5 0
ANNUAL 60 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
PO D/La boratory IT a ble22. SM R
-40-
FI GU RE 13
ANNUAL NPDES REPORT, 1992
RECEIVING WATER TOTAL COLIFORM
5 SAMPUNG STAT/ON AVERAGE
1200
1 000 ......-......-........-.....------...-..--.-.--...-..--.....--.-..............-.-...........-.--...-.-...-.--.-...
800 ....................-..........................-.....-..................................................-............-..........--.-......-...........
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z
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400 ...............-..............-.........
200 ......................-....--.--.-
2 3 4 5 6 7 8 9 10 11 12
MONTH 1992
-41-
TABLE 23
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL RECEIVING WATER DATA SUMMARY
PARAMETER
No. of
No. of Vio-
Month MAXIMUM MINIMUM AVERAGE Samples lations
JANUARY 7.9 7.7 7.8 5 0
FEBRUARY 7.8 7.5 7.7 5 0
MARCH 7.9 7.8 7.8 5 0
APRIL 8.0 7.9 7.9 5 0
MAY 8.0 7.8 8.0 5 0
JUNE 7.9 7.9 7.9 5 0
JULY. 8.0 7.9 7.9 5 0
AUGUST 7.8 7.5 7.7 5 0
SEPTEMBER 8.2 8.0 8.1 5 0
OCTOBER 8.0 7.7 7.9 5 0
NOVEMBER 7.9 7.5 7.6 5 0
DECEMBER 7.9 7.7 7.8 5 0
ANNUAL 60 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
POD/Laboratory/Table23.SMR
-42-
FIGURE 14
ANNUAL NPDES REPORT, 1992
RECEIVING WATER pH
5 SAMPUNG STAT/ON AVERAGE
10
9.5 .....................................................-....-............................................................-............................................................
9 ......................................................-....-...........................................-....---..-.....--..........................................-
t-
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4
5
6
7
e
9
10 11 12
MONTH 1992
-43-
TABLE 24
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL RECEIVING WATER DATA SUMMARY
DISSOLVED OXYGEN
PARAMETER No. of
mgn Percent Saturation Samples No. of
Vio-
Month MAXIMUM MINIMUM AVERAGE MAXIMUM MINIMUM AVERAGE lations
JANUARY 10.6 10.6 10.6 90 90 90 5 0
FEBRUARY 10.9 10.1 10.7 95 89 93 5 0
MARCH 9.3 9.0 9.2 93 90 91 5 0
APRIL 9.1 9.0 9.0 95 93 94 5 0
MAY 8.2 8.2 8.2 97 97 97 5 0
JUNE 8.4 8.3 8.4 100 99 100 5 0
JULY 7.7 7.6 7.6 95 94 94 5 0
AUGUST 8.0 7.6 7.8 88 85 86 5 0
SEPTEMBER 8.2 8.1 8.1 99 98 98 5 0
OCTOBER 7.6 7.3 7.4 88 85 87 5 0
NOVEMBER 8.3 8.0 8.1 91 88 89 5 0
DECEMBER 9.1 8.7 8.9 94 90 92 5 0
ANNUAL 60 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
POD/Laboratory /T able24 .SMR
-44-
z
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z
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FIGURE 15
ANNUAL NPDES REPORT, 1992
RECEIVING WATER DISSOLVED OXYGEN
.
5 SAMPLING STATION AVERAI3E
14
13 .-......----.....--............-.....................-.--.-..--..........--.---..-......---....-.......-..-....-.............-
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11 -...-...-........--..-.-.-..-.......................---.--...-.......-.....-...-..--..........................-...........--.........-.....--...-.-..
10 .....-..-...--.-- -.....--.-...-.---.............-.......-.-...-.........--....--...--......-.....-.-...--.......-..--..-...........-.-.
9 ......-....-...-.......-....-....-..-....... ....-.-................................-.....;.--...........-........-.-....-.............-........................ ......
7 .........-......-1 NPDES LIMIT -= 7.0 MGIL ~-...-........_._...__..-.....................-..__._..._.._..._..............................
6
2
5
12
6
7
e
9
10 11
3
4
MONTH 1992
-45-
FIGURE 16
ANNUAL NPDES REPORT, 1992
RECEIVING WATER % D.O. SATURATION
58AMPUNG 8T AT/ON AVERAGE
100
95
90
fo- 85
Z
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II:
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Q.. 75
70
65
60
2 3 4 5 6 7 e 9 10 11 12
MONTH 1992
-:-46-
TABLE 25
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL RECEIVING WATER DATA SUMMARY
-47-
~ 0.014
~ 0.012
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Z
111
o
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o
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FIGURE 17
ANNUAL NPDES REPORT, 1992
RECEIVING WATER UN-IONIZED NH3-N
5 SAMPUNG STAT/ON AVERAGE
0.02
0.018
0.Q16
NPDES LIMIT = 0.02~ MG/l ANNUAL MEDIAN
.-----....-..-.--....-.--..-.-....
0.400 MG/l MAXIMUM
0.01
...............................................-....-.....--..j L T = LESS THAN ,.............................
0.008
0.006
0.004
0.002
o
2 3 4 5 6 7 8 9. 10 11 12
MONTH 1992
-48~
TABLE 26
CENTRAL CONTRA COSTA SANITARY DISTRICT
SELF-MONITORING REPORT
1992 ANNUAL RECEIVING WATER DATA SUMMARY
TURBIDITY
PARAMETER NTU
No. of No. of
Month MAXIMUM MINIMUM AVERAGE Samples Vio-
lations
JANUARY 28 19 23 5 0
FEBRUARY 18 17 18 5 0
MARCH 33 27 29 5 0
APRIL 52 35 40 5 0
MAY 53 45 47 5 0
JUNE 43 21 31 5 0
JULY 34 28 31 5 0
AUGUST 26 16 20 5 0
SEPTEMBER NO NO NO
OCTOBER 6.0 4.3 5.3 5 0
NOVEMBER 15 12 13 5 0
DECEMBER 19 12 14 5 0
ANNUAL 60 0
MAXIMUM
ANNUAL
MINIMUM
ANNUAL
AVERAGE
ND=NO DATA
POD/Laboratory /T able26. SMR
-49-
FIGURE 18
ANNUAL NPDES REPORT, 1992
RECEIVING WATER TURBIDITY
5 SAMPUNG STATION AVERNlE
60
50 ...........................-..--....-.........-..---...-----..-----........-.---..-----...--..........-
::>
to-
Z
40 ..-.......-.--.........----.-....-.
20 ................
10 ...............
o
2 3 4 5 6 7 e 9 10 11 12
MONTH 1992
-50-
FIGURE 19
-51-
Central Contra Costa Sanitary District
BOARD OF DIRECTORS
PAGE 1
OF 6
BOARD MEETING OF
February 18, 1993
NO.
10. PERSONNEL a.
SUBJECT
DELETE THE POSITION OF SENIOR ACCOUNTANT/INTERNAL
AUDITOR AND ADD ONE ACCOUNTING SUPERVISOR POSITION.
REDUCE THE SALARY RANGE OF THE ACCOUNTING SUPERVISOR
POSITION FROM S-73 ($3933-$4759) TO S-71 ($3745-$4532).
RECLASSIFY STEVE ELSBERRY FROM SENIOR ACCOUNTANT/
INTERNAL AUDITOR TO ACCOUNTING SUPERVISOR.
DATE
January 20, 1993
TYPE OF ACTION
PERSONNEL
SUBMITTED BY
Paul Morsen, Deputy General Manager
INITIATING DEPT./DIV.
Administrative
ISSUE: Board authorization is required for personnel classification changes.
BACKGROUND: With the retirement of the District Finance Officer, Walter N. Funasaki, the
challenge for the new Controller is to maintain the same high level of service without increasing
staff, to even out the workload, to implement an internal audit program, and to install a new
computer system.
To achieve the above challenges, several reorganizational changes need to be implemented in the
Accounting Section. First, the Senior Accountant/Internal Auditor position was so involved in
accounting issues, solid waste, and computer work that an internal audit program was not
established. Further, good internal controls are not accomplished by using an existing staff
accountant to do both accounting and internal audit work. It is recommended that the Senior
Accountant/Internal Auditor position be eliminated, and reclassified back to the position he
formerly held, Accounting Supervisor.
The reclassification of the Senior Accountant/Internal Auditor position to Accounting Supervisor
would create two Accounting Supervisor positions. Staff proposes one supervisor will be
responsible for supervising and coordinating the accounts payable and disbursements area, and
the other supervisor will be responsible for supervising and coordinating the accounts receivable
and cash area. The MIS implementation and other major projects such as the annual budget and
annual audit would be handled using a team approach which will provide a cross-training
opportunity for accounting staff.
After this requested change, two supervisors would split the duties of the existing Accounting
Supervisor position. Accordingly, the open supervisory position should be changed from its
current S-73 level ($3933 -$4759) where only one supervisor was utilized, back to the original
S-71 level ($3745 - $4532). Both Accounting Supervisors will still need the same level of
accounting expertise and supervisory skills. The open supervisory position is planned to be
recruited by the Personnel Section.
REVIEWED AND RECOMMENDED FOR BOARD ACTION
J/6~~(/
~~)
DR
1302
SUBJECT
DELETE THE POSITION OF SENIOR ACCOUNTANT/INTERNAL
AUDITOR AND ADD ONE ACCOUNTING SUPERVISOR POSITION.
REDUCE THE SALARY RANGE OF THE ACCOUNTING SUPERVISOR
POSITION FROM S-73 ($3933-$4759) TO S-71 ($3745-$4532).
RECLASSIFY STEVE ELSBERRY FROM SENIOR ACCOUNTANT/
INTERNA DIT R
PAGE
DATE
2
OF
6
With the retirement of the District's Finance Officer, staffing levels are not sufficient to implement
and provide an internal audit function. The most cost effective way to provide this program would
be to use a small outside C.P.A. firm. It is recommended that this firm perform quarterly reviews
in both the financial and operational areas. The Board Finance Committee along with the General
Manager - Chief Engineer and Deputy General Manager would be involved in developing the list
of areas to audit. The auditor would then prepare a formal written document suggesting areas
of improvement and review the District's response to ensure successful implementation of
recommended changes. Finally, a formal report would be submitted for review by the Board
Finance Committee and transmitted to the entire Board.
It is further recommended that the garbage rate analysis done by the Finance Officer and staff in
prior years, now be done using outside consultants.
Attached is a revised job description that contains non-substantive changes, which have been
underlined for reference. Also attached is a current organizational chart and proposed
organizational chart.
The requested personnel changes can be accomplished with no increase in the total number of
authorized positions and within the current budget constraints. The cost of an outside C.P.A. to
provide internal audit activities and an outside consultant to provide the garbage rate analysis is
planned for inclusion in the 1993-1994 Operations and Maintenance Budget.
RECOMMENDATION:
1. Delete the Senior Accountant/Internal Auditor position S-71 ($3745 - $4532).
2. Add an Accounting Supervisor position S-71 ($3745 - $4532).
3. Revise the salary range of the Accounting Supervisor position from S-73 ($3933 - $4759)
to S-71 ($3745 - $4532).
4. Reclassify Steven Elsberry from Senior Account/Internal Auditor S71 ($3745 - $4532) to
Accounting Supervisor S71 ($3745 - $4532).
13028-7/91
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CENTRAL CONTRA COSTA
SANITARY DISTRICT
Effective: 2/1 8/93
Range: 5-71
Respirator Class: 3
ACCOUNTING SUPERVISOR
DEFINITION
Supervise daily work activities within the Accounting Section including accounts payable,
accounts receivable, cash receipts, payroll, and general ledger; prepare monthly financial
statements; reconcile accounts; prepare special reports and analyses as required.
SUPERVISION RECEIVED AND EXERCISED
Receive direction from the Controller.
Exercise functional supervision over the Accountant~ and personnel in the Accounting
Technician series.
EXAMPLES OF DUTIES - Duties may include, but are not limited to, the following:
Supervise the daily work activities within the Accounting Section including accounts
payable, accounts receivable, cash receipts, payroll, and general ledger.
Review and analyze accounting operations and systems; implement new or revised
systems and procedures as appropriate.
Control, direct, and participate in the preparation of monthly financial statements and
account reconciliations; compile and prepare the monthly financ~al report.
Perform a variety of account record keeping including government grant records, accounts
of the District's temporary investments, maintenance of general journals, and general and
subsidiary ledgers.
Assume lead responsibility for the operation of the District's Data Processing System.
Prepare equipment and operations and maintenance budgets.
Prepare work papers for the District's independent auditors.
Prepare special reports and analyses as requested.
Perform related duties as required.
CENTRAL CONTRA COSTA SANITARY DISTRICT
Accounting Supervisor (Continued)
QUALIFICATIONS
Knowledge of:
Municipal accounting principles and practices.
Enterprise fund accounting procedures. Budget preparation principles.
Basic electronic data processing applications.
Supervisory principles, practices, and techniques.
Safety hazards and appropriate precautions applicable to work assignments.
Abilitv to:
Train and supervise assigned personnel.
Apply sound accounting procedures to facilitate fiscal control and analysis.
Analyze financial systems, operations, and data; develop sound conclusions and
appropriate courses of action.
Understand and function in an electronic data processing environment.
Communicate effectively, orally and in writing.
EXPERIENCE AND EDUCATION
Any combination equivalent to experience and education that could likely provide the
required knowledge and abilities would be Qualifying. A typical way to obtain the
knowledge and abilities would be:
Exoerience:
Three years of experience in a oroaressivelv more resoonsible professional
accounting oosition and/or auditing capacity, of which two years involve
experience in municipal fund accounting and supervision.
CENTRAL CONTRA COSTA SANITARY DISTRICT
Accounting Supervisor (Continued)
Education:
Equivalent to a bachelor's degree from an accredited college or university with
major study in accounting.
Possession of a Certified Public Accountant certificate or Master of Business
Administration degree is desirable.
LICENSES AND CERTIFICATES
Possession of a valid California Driver's License.
PAGE 1 OF 1
NO.
11. LEGAL/LITIGATION a.
DATE
GRANT PERMISSION FOR SUBMISSION OF Februar 10 1993
A LATE CLAIM AND DENY THE CLAIM TYPE OF ACTION
ON ITS MERITS DENY CLAIM
SUBMITTED BY INITIATING DEPT JDIV.
Bonnie Allen, Risk Manager Administrative/Risk Management
ISSUE: Application has been made on behalf of Dave Granquist for permission to present a late
claim for damages in an unspecified amount. Approval by the Board of Directors is required
to accept late claims and to deny claims.
BACKGROUND: Dave Granquist claims bodily injury and property damage to bicycle and
resultant wage loss, medical expenses and general damages in an unspecified amount. He
states he incurred the injury on March 26, 1992, as a result of a bicycle accident after he rode
over what he alleges was an improperly maintained roadway and sewer cover located in front
of 1776 Main Street, Walnut Creek.
On September 10, 1992, a claim for the damages was filed by Mr. Granquist with the City of
Walnut Creek who referred him to the District. The claim presented to the District on October
26, 1992 was returned because it was not presented within six months after the event or
occurrence as required by law. District Counsel advises that because the statutory time for
filing a claim ran out due to Mr. Granquist's presenting his claim to the City of Walnut Creek
in error, that allowing the late filing then denying the claim would be the appropriate action.
RECOMMENDATION: Grant permission for Dave Granquist to present a late claim and deny
the claim on its merits. Refer the claim to staff for further action as needed.
(J
NG.
REVIEWED AND RECOMMENDED FOR BOARD ACTION
1302A-7/91
KLA