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Utility Plans -Water Plan
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City of Meridian Water Notes:
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1. CONSTRUCTION OF THE WATER SYSTEM SHALL CONFORM TO THE STANDARDS IN THE "IDAHO RULES FOR PUBLIC
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DRINKING WATER SYSTEMS (IDAPA 58.01.08)" AS WELL AS THE STANDARDS AND SPECIFICATIONS REFERRED TO IN
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GENERAL CONSTRUCTION NOTE NO. 1.
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2. THE HORIZONTAL SEPARATION OF POTABLE WATER MAINS AND NON -POTABLE WATER MAINS (SANITARY SEWER,
STORM DRAIN, AND IRRIGATION) SHALL BE A MINIMUM OF TEN (10) FEET. WHERE IT IS NECESSARY FOR A POTABLE
WATER MAIN AND NON -POTABLE WATER MAIN TO CROSS WITH LESS THAN EIGHTEEN (18) INCHES OF VERTICAL
SEPARATION, THE CROSSING SHALL BE CONSTRUCTED IN ACCORDANCE WITH SECTION 542.07 OF THE IDAHO RULES
FOR PUBLIC DRINKING WATER SYSTEMS (IDAPA 58.01.08) AND SECTION 430.02 OF THE WASTEWATER RULES (IDAPA
58.01.16).
3. THE HORIZONTAL SEPARATION OF NON -POTABLE SERVICES AND POTABLE WATER SERVICES OR POTABLE WATER
MAINS SHALL BE A MINIMUM OF SIX (6) FEET. WHERE IT IS NECESSARY FOR A POTABLE WATER MAIN AND
NON -POTABLE WATER MAIN TO CROSS WITH LESS THAN EIGHTEEN (18) INCHES OF VERTICAL SEPARATION, THE
CROSSING SHALL BE CONSTRUCTED IN ACCORDANCE WITH SECTION 542.07 OF THE IDAHO RULES FOR PUBLIC
DRINKING WATER SYSTEMS (IDAPA 58.01.08) AND SECTION 430.02 OF THE WASTEWATER RULES (IDAPA 58.01.16).
4. PLACE WATER SERVICE LINES IN A TWO (2) INCH DIAMETER PIPE SLEEVE WHEREVER THE SERVICE LINE CROSSES A
STORM WATER TREATMENT FACILITY (I.E. SEEPAGE BEDS, DRAINAGE SWALES).
5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING CONTINUOUS WATER SERVICE TO ALL EXISTING WATER
USERS AFFECTED BY CONSTRUCTION. IF WATER SERVICE MUST BE INTERRUPTED, THE CONTRACTOR SHALL
COORDINATE WITH THE PUBLIC WORKS INSPECTOR.
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Sheet Notes:
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1. CONTRACTOR TO FIELD VERIFY ALL EXISTING CURB & GUTTER, STORM DRAIN, CHANNEL CROSSINGS, & SEWER
ELEVATIONS OR INVERTS PRIOR TO CONSTRUCTION AND NOTIFY ENGINEER WHEN ELEVATIONS OR INVERTS DO NOT
MATCH PLANS.
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2. THE LOCATIONS OF EXISTING UNDERGROUND UTILITIES ARE SHOWN IN APPROPRIATE LOCATIONS. THE
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CONTRACTOR SHALL DETERMINE THE EXACT LOCATION OF ALL EXISTING UTILITIES BEFORE COMMENCING WORK. HE
AGREES TO BE FULLY RESPONSIBLE FOR ANY AND ALL DAMAGES WHICH MIGHT OCCUR BY HIS FAILURE TO EXACTLY
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LOCATE AND PRESERVE ANY AND ALL UNDERGROUND UTILITIES.
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Keynotes:
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1. POTABLE WATER MAIN CROSSING - SEE WATER NOTE NO.2 ON THIS SHEET.
2. POTABLE / NON -POTABLE WATER SERVICE CROSSING - SEE WATER NOTE NO.3 ON THIS SHEET.
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3. CONNECT TO EXISTING 12" WATER MAIN WITH 1-12"x8" (FLGxMJ) TEE,1-12" GATE VALVE (FLxMJ) AND 1-8"
GATE VALVE (FLxMJ). INSTALL THRUST BLOCKS PER ISPWC SD-403
4. INSTALL 1-8"x4"x8" TEE AND 1-4" GATE VALVE WITH THRUST BLOCK
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5. INSTALL FIRE HYDRANT PER CITY OF MERIDIAN DETAIL W8
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6. INSTALL 2-IN WATER SERVICE, METER SETTER & VALVES PER CITY OF MERIDIAN STANDARD DETAIL W4
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7. INSTALL 8-IN TEE (MJxFL), 2-8-IN GATE VALVES (FLxMJ) AND 4-FT STUB WITH BAN (MJ) BLIND -FLANGE TO
THE SOUTH. INSTALL THRUST BLOCKS PER ISPWC SD-403
8. INSTALL 45" 8-IN ELBOW WITH THRUST BLOCK
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9. CONNECT TO EXISTING 10" WATER REMOVE EXISTING BLOW -OFF ASSEMBLY. INSTALL 10" x 8" REDUCER,
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BAN GATE VALVE & 8-IN 45° ELBOW WITH THRUST BLOCK
10. PROTECT IN PLACE ALL EXISTING UNDERGROUND UTILITIES AND SURFACE APPURTENANCES. LOCATE ALL
EXISTING UTILITIES PRIOR TO CONSTRUCTION. CALL 811 PRIOR TO CONSTRUCTION
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11. INSTALL 11.25° 8-IN ELBOW WITH THRUST BLOCK.
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12. INSTALL 1 AN IRRIGATION SERVICE WITH 3/4" METER PER CITY OF MERIDIAN DETAIL W2. INSTALL
BACKFLOW PREVENTION DEVICE - SEE LANDSCAPE PLANS FOR MORE INFORMATION.
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13. INSTALL TEMPORARY 2" BLOW -OFF w/ CONCRETE COLLAR PER CITY OF MERIDIAN DETAIL W12
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Legend:
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8" WATER MAIN (OR AS NOTED)
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2" BLOW -OFF ASSEMBLY PER CITY OF MERIDIAN DETAIL W13
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GATE VALVE
FIRE HYDRANT PER CITY OF MERIDIAN DETAIL W8
3/4" WATER SERVICE PER CITY OF MERIDIAN DETAIL W1
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3/4" DOUBLE WATER SERVICE PER CITY OF MERIDIAN DETAIL W3
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WATER SERVICE SLEEVE
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EXISTING WATER MAIN
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EXISTING BLOW -OFF ASSEMBLY
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EXISTING GATE VALVE
EXISTING FIRE HYDRANT
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SEWER MAIN (SIZE NOTED)
PIRR
PRESSURE IRRIGATION (SIZE NOTED)
0 30' 60'
Plans Are Accepted For Public Street
Construction
By stamping and signing the improvement plans, the Registered Engineer ensures the
District that the plans conform to all District policies and standards. Variances or
waivers must he specifically and previously approved by the District in writing.
Acceptance of the improvement plans by the District does not relieve the Registered
Engineer of these responsibilities.
BY: DATE:
ADA COUNTY HIGHWAY DISTRICT
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01/22/2021
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Project No.: 119025
Date of Issuance: 01/22/2021
Project Milestone: Permit Set
Utility Plans
Water Plan