HomeMy WebLinkAboutCouncil Presentation 06/21/2016 - Wastewater Final Master Plan 062116NIA I? jk N A
MARANA
-water
Marana Water Reclamation Facility
Expansion
Adoption of Treatment Master Plan
June 21, 2016
W +
FA
Future Rechar
Basins
Water Supply
Well and
POC #1
Secondar Effluent
■
Pump St, finn
Tertiar Sand
Blowe
Filterq-
Electrical
' M, 41
(UV Disinfec,
Drain Pum
Bul
Station
Backup
•�
tOT
GeneratOT
dr
Effluent Stora
Pond / hlonne
Chlorination
Box No. 1
I j Contact Basin
A
dt t
Biolac
Basin
Emer
overtiow
Basin
PL
contl
filit Water
Buildin
Pumps Ilk
Sludge i [i flue 31ofilte-1,
en t A
tora Pump
acl Station Headworks
a
Plants
MARANA WRF SITE PLAN
• 0.5 Million Gallon per Day (MGD) Biolac Treatment
system
• Current flow average is 0.370 MGD
• With strength of sewage, operations are
increasingly more difficult
• Significant sludge disposal costs
IMARANA WRF SITE PLAN
Items to be considered:
• Growth Assumptions
• New Developments —Gladden I & II, Rancho Marana, Fianchetto
Farms, Saguaro Bloom, others
• Treatment Technologies
• Stay with current, upgrade to other options, etc.
• Long Term Operational Costs
• Sludge dewatering, energy consumption, operator oversight, etc.
Based on Based on
Source: TM -1 Flow and Load Review and
Projections, Westland Resources
2.
PA
mom%
1.5
U .
a
0.5
.X
2015
Marana DMA
Flow Projections
2020
Year
1.2 mgd
2025
Assuming 52.3 gpcpd Assuming 80 gpcpd
52.3 gpcd
80 gpcd
Year
AADF
AADF
(mgd)
(mgd)
2015
0.355
0.355
2020
0.67
0.7
2025
0.95
1.15
2035
1.78
2.25
Source: TM -1 Flow and Load Review and
Projections, Westland Resources
2.
PA
mom%
1.5
U .
a
0.5
.X
2015
Marana DMA
Flow Projections
2020
Year
1.2 mgd
2025
Assuming 52.3 gpcpd Assuming 80 gpcpd
JOL _ µ — SF
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.............................
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ice- 1 i • , _ -
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1 P.Mom
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ti �1v �_�an_.r. f
f• � �,,.{ fi x, � r
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-
a i
'
rr '.'1I
4 • ,rw. - -- O r
rt ,. r. 1'r'7
• - di
PHA L 1 E VAN ON
PHASE 1 CONCEPTUAL SITE PLAN
FIGURE 7
r�ww of MARANA
x ARANA WATER RE -.LA uA r.'0 P! FACXJ Y Ad4 PLA
One primary process to maintain /control
Operational control and flexibility
Longevity
Recirculation is optional
Water quality loading
Technologically advanced
Repurpose existing plant
Low aeration /power requirements
Lower sludge production
Built above ground —may be able to
eliminate some on -site pumping
MM"r IV
High up -front cost
Short sludge holding time
Marana WRF Master Plan
Process Option - New 1.5 mgd CAS
1.5 MGD
Phase 1
DESCRIPTION
General Requirement
8.0%
$767
Yard /Site Facilities
12.0%
$1,151,305.98
New Influent Sewer Line
$99
Headworks Facilities
$726
Influent Pump Station
$157
Bioreactor Splitter Box
$229
Retrofit Existing Biolac and Liner Repairs
$
New 1.5 mgd Conventional Activated Sludge System
$3
Secondary Clarifier Splitter Box
$206
Secondary Clarifier
$2
RAS /WAS Pump Station
$455
Tertiary Filter
$
WAS Storage Tank
$243
Dewateri ng Faci (ties
$917
Subtotal "Baseline" Direct Costs
$11,
Escalation Contingency
3.0%
$348
Design Contingency
25.0%
$2
TOTAL DIRECT COSTS
$14,863,664
General Conditions
10.0%
$1
SUBTOTAL 1
$16
Bond and Insurance
2.5%
$371
SUBTOTAL 2
$16
Salex Tax (at 50% of current Marana tax rate)
8.6%
$830
TOTAL ESTIMATED CONSTRUCTION COST
$17,552,501
Plus ^'20% for
Design, Permitting
and Construction
Services:
$21M required
Annual Solids Disposal Costs
$1,400,000
$1,200,000
I
o $1,000,000
U I
M
N $800,000
0
0-
Ln
E $600,000
$400,000
Q
$200,000
$o
0
$766,501
511,000
$401,500!
$40,000 $56,300
0.2 0.4
Cost to Dispose Liquid WAS
5 -Year Cumulative Total
$1,211,542
$1,022,00 OOOA
$78,900
$112,700 $135,200
0.6 0.8
WRF Flow (rngd)
Cost to Dewater & Landfill
Cost to Haul Liquids
To Casa Grande WRF
O v a l le
0 1 061
"8817 32
1.4
Z I a I I -p I,- a I v
im EAS EMENT NOTE E
20' CINU CANAL CRU55"U I 1 11
SET54CK LIKE
r f
Tr 1 2e EASE jnr - mmr AL
10' E40CWT - NOTE
REMOVE 2U' OF EXZTIN12 FENCINU AND--40-L-
REPLACE WITH A NEW 2V DID 925-
3WINQ 9■TE PER
19 2a 7
7 915
16 FqDPIE tL
tv T
24 HOPE
�00
DrYER94ON STRUCTURE
NORTH CONStNUCTION ACUS PER,2 . 1 PER BASIN
IC NEW ACCESS RAMP
N.Ew BERM SEE DETAI
SEE DEIAJL I' ;�' I , , -
Ilk. NEW BASIN A NEW BA51N C
NEW ACCMS RAUP
-TAIL
-Z,7 SEE X
NEW A"[5'5 "P
N SEE DEtAIL
z ACCESS RAMP
SEE N L
T OWN O F MARANA
WATER RECLAMATION FACILFFT
5 HOPE
I mi I LML MCE FIAORMC
F!
:f— UVERSON STRUMIRE
1
PER
7 1 1 PER BASIN
R2
m
N EC! BA5 IN 8
I � � 994
E x 1177 1 N n
RW I li - .� X
-T 2) u 410 LI.- DUrLE-T PIPE (13111 ALT f2)
KEW POOL pc &L-r #2)
II:'J IL5LL9 (QD ALT #2)
NEW OMERVATICK WOUND
TO BE "YUMSEEOED, N EW POOLS
SEE NOTE I THIS SHEET (END ALT K)
WN FALLS (010 ALT 02) Toas
NEW PODL (BID ALT #2)
EXISTING OVERHEAD
ELECTRIC LINE
ExisnNC IRRIGATION CA14AL NEW FALLS COD ALT 112)
CONTRACTOR TO PROTECT IN PLACE t f IEW POOL (110 ALT #2). -
NEW FALLS (EID ALT 02)
- -- - - - - -------- - --------- ------ ----------
- - - - - - - --- - ----- - -
SOUTH CONSTRUCTION A=-1
30' rMI0 CANAL
CROSSING Put
F R
r --EyInNc RRCA1111344 CAMA
-NEW BERM
SEE I)EwLf,�j
PARCEL 190UNDWf
LARGE EIGWL TO BE HYDROSEEDED,
SEE Nom I THIS SHEET
I
EASEMENT NOTE
A. ummetr rm RK"s or wAy FOR owLs AND
LATERALS AND RIGHT'S INCIDENTAL THERETO AS SET
107 OF Mt5CIELLANMUIS RECORDS.
PAGEI51 AND IN OUCKET 3212. PAGE 51134. AS
SHO" ON SURVEY.
B. EASEMENT CUR SEWER PURPOSES AND RIGHTS
INCIDENTAL THERUQ A5 5LT FQeTH IN QQQ LT OT49.
PAGE IMM. (SECTION IZIN AS SF MM ON SUROIE'T.
C EASEMENT FDR TELECOM kdLJ NI CATION FACLITES
PLRPOSP AND QIt.HT'& INCEIMAL TI-EXTO AS 90
FORTH IN DOCKET 11653. PALGE 105. (SECTION 13).
A5 5HUM IN WRVCY.
D. E&MMENT FOR TELECOM MU KJ CATICU FACUTES
PLPIP05E AND RIGHTS INGUENTAL T►EREM AS SET
FORTH IW DOCKET 111328, PACE 185. (SECTION 14)L
AS SHOMM CN SURYCY.
E EASEMENT FOR SEWER PURPOSE ANO P113WM
INCIDENTAL THEREM AS SET FORTH IN DOCKET
1302% PACE 1983. (SECTION 13). AS SIHIOWN ON
5 Rv Ly.
SLOPE STABILIZATION NOTE
1. PROVIDE mOMSFED ON OMEPAION WOUND
(91,5W 50 FT) AND LARGE BOWL (174.004 33 FT}.
SEE NOTES ON SHEET C-01.
2. PMVDE RXK mUu5i AND aEOTMiLE SLOPE
5TAi1IU2AyIOIQ ON SIDE SLDPES OF NEW BASIN A
(17407 SO Fr NU BASIN tj 312 FT AND
NEW EMIN C (18.44E W R)
TREATMENT PLANT ROAD
rviiiis *I ww we Iwo a
— — ---------- — ----------- ----------------
EXI riko ROAD
Exrg-rnr 5EWERUNE -I
"116
177- 41
I p I I I - I
TOWN OF MARANA
MARANA WATER RECLAMATION
ZVWN a FACILITY RECHARGE PROJECT
CIP PROJECT WT-025
PHASE I SITE PLAN
uirFT
SCAM 11-w C-02
Design &
Permitting
Construction
Plant Commissioning
June 2016 — Spring 2017
Begin Spring 2017
Spring 2018
*Saguaro Bloom will add at least 30K gallons /day once project is complete in fall 2016
MARANA
MARANA
41
-water
Marano Water Reclamation Facility Expansion
Adoption of Treatment Master Plan
June 21, 2016