HomeMy WebLinkAboutCommonwealth Electric - Industrial Wastewater Holding TanksI
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WEATHERPROOF JUNCTION
- EPDXY BOX WITH 1/2 INCH NPT
SEAL THREADS
MAGNETORESTRICTIVE PROBE
SECTION B —
TRANSVERSE TRANSVERSE SECTION THROUGH INDUSTRIAL THROUGH INDUSTRIA
WASTEWATER HOLDING TANK (TYP. FOR 2)HOLDING TANK��P. FOR 2)
NOT TO SCALE
INDUSTRIAL WASTEWATER
HOLDING TANKS
A
DRYWELL
1 TANK 2
z"
x ♦ CONTRACTOR GENERAL
TANK 1
z
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R
ALARM PANEL IN TANK
4 DIA
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x TLS 350 MONITOR LOCATED G1.5i
ON OFFICE WALL (GARAGE
SUPERVISOR'S OFFICE)EXISTIN
GARAGE'
" RAP FL. EL. 50'-0' - EXIST_ 4 C.I. SEWER
APPROXIMATE AREA _ 7
M.H.
OF EXISTING LEACHING Y '
FIELD (TO BE ABANDONED
DUCTLINE UNDERGROUND
a==
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EXISTING SOLID A' SE�VIC
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SERVICE
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OFFICE STATION i' m im � _ ' w '- E__ __ _ ,�
PSERVICE XfMR J�ND ND `\~
/ AD CLOSURE "9"
DRYWELL DRYWELL .a` 4_¢ �� 7 Cl WATER EXIST. 6 Cl WA
�° -......: .. .EXIST. ; 12 'STEAM
10 RYWE DRYWELL
2" WATER SERVICE
6" SANITARY DRAIN
OFFICE
(101'x181')
SITE PLAN
SCALE: 1"=30'
N 26-54'-10'E
1075.730'
AMLOH/ STREET
24" TIGHT COVER -\ FLOOR -1 50.00'
WROUGHT IRON STEPS
4 VENTS THRU ROOF
INDEPENDENTLY
4" FTuI FLOORDRAINS
INV GR 41.00'
WATER �" 4" TO TANKS
LINE7 9A_� INV GR 46.42'
o
60 NOTE:
g' BRICK PLASTERED ON INSIDE WITH
PORTLAND CEMENT MORTAR — 1 PART
o CEMENT, 2 PARTS SAND
24"
6"
41.42' —I
4.A p e A d ,.4 e
T
DETAIL OF EXISTING "MDC" TRAP
SCALE: 1 /2' =1'
SLOPE: 1 g':1'-0"
MDC
TRAP
INV. EL 45.70'
68'-10"
5 -
Ir DD
INLET
5'-1
SECTION A—A
SYSTEM PROFILE
SCALE: 1".-10'
9'-0" 10'-0"
PLAN VIEW
VIEW C—C '
ST500-9X16
PRECAST SEPTIC TANK -5.000 GALLONS
SCALE: 1 /4" =1 '
r -H 10 LOADING
0" --H2O LOADING
" H10
" H2O
NOTES:
1. LOCATIONS, SIZES, SLOPES, ELEVATIONS, DISTANCES, PROFILES, DETAILS, AND
ALL OTHER INFORMATION PRESENTED ON THIS DRAWING WAS SUPPLIED TO GZA
GEOENVIRONMENTAL, INC. BY COMMONWEALTH ELECTRIC COMPANY. NO INDEPENDENT
SURVEYS, MEASUREMENTS, INVESTIGATION, SAMPLING, ANALYSES, OR FILE REVIEW
ACTIVITIES WERE PERFORMED BY GZA GEOENVIRONMENTAL. INC. IN CONJUNCTION
WITH PREPARATION OF THIS DRAWING.
2. CONCRETE - 5,000 P.S.I. ® 28 DAYS.
3. STEEL REINFORCEMENT PER A.S.T.M. A-615-75.
4. DESIGN LOADING - STANDARD - A.A.S.H.O. HS10-44.
DESIGN LOADING - OPTIONAL UNITS - A.A.S.H.O. HS20-44.
5. JOINTS SEALED WITH 1" DIA. BUTYL RUBBER OR EQUAL
6. TEES - PROVIDED AND INSTALLED BY OTHERS.
7. PRIOR TO BACKFILLING, BOTH TANKS TO BE TESTED FOR WATER -TIGHTNESS.
8. HOLDING TANKS TO BE WATERPROOFED WITH ASPHALT CONFORMING TO ASTM D449
TYPE A TO A THICKNESS OF 6 MIL WHEN DRY.
9. DESIGN ENGINEER TO INSPECT & CERTIFY INSTALLATION.
10. LEAD DETECTION SYSTEM DESCRIPTION: THE VEEDER-ROOT SYSTEM IS CURRENTLY IN
PLACE TO DETECT LEAKS IN UNDERGROUND INDUSTRIAL WASTEWATER HOLDING TANKS
AT THE SITE. ON 2/15/95 THE SYSTEM WAS UPDATED TO INCLUDE IN EACH TANK A
STAINLESS STEEL MAGNETORESTRICTIVE PROBE, CAPABLE OF DETECTING LEAKS OVER
A SET PERIOD OF TIME. SPECIFICALLY, BY IMPOSING A 6 HOUR "RESTING" TIME
(I.E., NO FLOW IN OR OUT) EACH MONTH ON THE TANKS, THE SYSTEM WILL
COMPENSATE FOR TEMPERATURE AND PROVIDE INDICATION OF ANY LEAKS IN THE
TANKS. THE PROBES, WHICH MEASURE ACCURATELY TO 0.1 GALLON PER HOUR, WILL
BE INSPECTED MONTHLY FOR SIGNS OF CORROSION AND WEAR. SPARE PROBES ARE
KEPT ON SITE AS REPLACEMENTS.
REFERENCES:
RECORD OWNER: NEW BEDFORD GAS-EDISON
ASSESSORS MAP 63 PARCEL 31
FLOOD ZONE: 'C'
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EL. 49.5'
MEDIUM
SAND
O"
EL. 40.5' WATER 10T
TEST HOLE LOG
TEST BY: WELLER & ASSOC.
WITNESS: E. HUTCHINSON
DATE: MARCH 1,1991
HOVE 'u
MASSACHU^ET` S' D �a = . 1-1vIENT O
ENVJ_RON TAL PROTECTION
date, 511519-5
DRAWING
/15/9 -
DRAWING INCOf
INDUSTRIAL W�(.
ON EXISTING M
PRESENTED TO`
COMMONWEALTH
REQUIRED BY C
'r
h RELEVT TO THE
IKS AS PRESENTED
3Y OTHERS AND
AL, INC. BY
AND MODIFIED AS
ZIC COMPANY.
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FRAMES do COVERS TO GRADE
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- MAGNETORESTRICTIVE PROBES
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WITH JUNCTION BOXES
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EL. 49.5'
MEDIUM
SAND
O"
EL. 40.5' WATER 10T
TEST HOLE LOG
TEST BY: WELLER & ASSOC.
WITNESS: E. HUTCHINSON
DATE: MARCH 1,1991
HOVE 'u
MASSACHU^ET` S' D �a = . 1-1vIENT O
ENVJ_RON TAL PROTECTION
date, 511519-5
DRAWING
/15/9 -
DRAWING INCOf
INDUSTRIAL W�(.
ON EXISTING M
PRESENTED TO`
COMMONWEALTH
REQUIRED BY C
'r
h RELEVT TO THE
IKS AS PRESENTED
3Y OTHERS AND
AL, INC. BY
AND MODIFIED AS
ZIC COMPANY.
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PROJECT NO.
13855
FIGURE NO.