OBO Standard Specifications (Compound Water Systems Design Requirements).pdf

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World -Wide Water Storage Tank Remediation
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19AQMM20R0075
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This document outlines a solicitation for concrete water storage tank remediation services. The Bureau of Overseas Buildings Operations within the U.S. Department of State seeks to award at least three Indefinite Delivery, Indefinite Quantity contracts for one base year and four option years to support water storage tank inspection, repair, and interior coating at diplomatic missions worldwide. The solicitation will be partially set aside for small businesses, with one award reserved for a woman-owned business and one for a small business, and one award available on a full and open basis. The maximum contract value over five years is $100 million. Interested offerors should submit proposals by 12:00 PM EST on March 27, 2020. The question submission period closes on March 12, 2020. Technical considerations will be more important than cost in the award determinations.

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E0301 COMPOUND WATER SYSTEMS

[formerly E0201]& . & . � � � �

INTRODUCTION

OVERVIEW

Water supply systems for OBO office and SDA compounds are complex. A high-level summary of the different sub-systems is outlined in this Sec#on, including water sources and storage. In addi#on, this Sec#on includes a summary of the various site underground water supply sub-systems.

OBO seeks to appropriately control water demand, evaluate water sources, and develop a custom, op#mized strategy for each compound.

OBO-UNIQUE CODE REQUIREMENTS

OBO-ICS IFC Chapter 5 for Fire Hydrants and Mains

OBO-ICS IZC Chapter 8 for Site U#li#es Requirements

SUB-INDEX E0301 COMPOUND WATER SYSTEMS

E030101 Wells

E030102 Irriga!on System

RELATED CONTENT PAGES

D0203 U!lity Building (UTL)

E0901 Plumbing

E090101 Potable Water Treatment System

E090102 Raw and Potable Water Storage

E090301 Fire Sup / ression Systems

F07 Divisions 31-33 OBO Standard Specs

Sec#on 331414 Fire Service Mains and Appurtenances

Sec#on 331416 Site Water Distribu#on Piping

0 1 2 3 4 5 6 7 8 3 9 7 : ; 1 7 5 7 3< = < = : > : 2 ? 1 @ A B 1 C D B 2 D E 2 1, � � $ � # � F � G # H � � � � $ $ � I � � * J , G H K L M M N O O P Q P R P S TL Q U V S W X Y Z Y [ Y \ ] ^ _ ` ^ a [ b \ c d Y Z e f e d Y _ e c Z Y g [ e d c h h Y b ^ [ ] ^ _ ` ^ a [ b e i d X Y e f e d Y _ e X c h h X c j Y^ [ Y ` Z g _ c Z f \ c d Y Z e ^ a Z ] Y c [ b ^ [ Y ^ Z _ ^ Z Y e Y ] ^ [ b c Z f \ c d Y Z e ^ a Z ] Y e k l m l \ g h h _ c n Y d X Yo g [ c h b Y d Y Z _ g [ c d g ^ [ ^ [ \ c d Y Z e ^ a Z ] Y e d ^ p Y a e Y b o ^ Z c ] ^ _ ` ^ a [ b k The availability and quality of water from municipal sources for potable and non-potable use varies on a post-by-post basis.

E0301-

01.02

Primary Water Sources

Potable Drinking Water: OBO will select sources based upon the following order of preference:

Municipal Water Supply: When deemed sufficient and reliable (99% up#me or more)

Well(s): When deemed sufficient to meet program requirements

Trucked Water

Rainwater harves#ng

Non-Potable Water: OBO will select sources based upon the following order of precedence:

Well(s)

Municipal Water Supply when deemed sufficient and when deemed reliable (99% up#me or more)

Truc ked Water

E0301-

01.03

Secondary Sources

Potable Drinking Water: OBO will select sources based upon the following order of preference:

Well(s)

Trucked water

Rainwater harves#ng

Non-Potable Water: OBO will select sources based upon the following order of preference:

Rainwater harves#ng

Reclaimed water

Well(s)

Municipal water supply

E0301-

01.04

Raw Water Distribu q r on

Where an acceptable municipal water source is available, raw water shall be obtained from the municipal system main, pass through the Water Demarc Room on the compound perimeter wall, and feed the raw water storage tank (typically located in the U s t lity Building). The Water Demarc Room will allow access by the local u s t li s t es for compound metering without requiring access by their personnel to the pr otected side of the compound perimeter.

E0301-01 WATER SUPPLY SOURCES REQUIREMENTS

E0301-

01.01

Compound Water Supply Sources - General

E0301-

01.06

Potable Water Distribu!on

Water from the raw water storage tank shall be piped for treatment to a closely located water treatment plant. A$er treatment for potable quality, the water shall be piped to a closely located potable water storage tank. From the potable water storage tank, the potable water shall be distributed using a loop on site via a potable water distribu#on system; these lines shall be connected to each building.

E0301-

01.07

Fire Protec!on System Distribu!on

Water for the fire protec#on water storage shall be piped from the potable water storage tank for both the ini#al filling of the fire protec#on water storage tank and for opera#onal replacement of water in the fire protec#on water storage tank as needed.

[Conten t Removed.]

E0301-

01.08

Irriga!on System Distribu!on

The irriga#on system can be fed from various sources. Distribu#on from an irriga#on storage tank shall be via the irriga#on distribu#on system.

, � � $ � # � F � G # H � � � � $ $ � I � � * J , G H K

E0301-

01.05 u v w w u x q v y z r { q y r | } q r ~ �� � � � � � � � � � � s � � t � � � � � � � � � � � � s � � � � � � � � � � s � � � � � � � � s � � � � � � � � � � t � s � t � � s � �� � � � � � � � � � � � t � � � � � � � � s � � � t � s � t � � s t � � � � � s � � s � s � � � � � � � s � � � s � � � � � s � � � � � � � � � � � � � � �

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E030101 WELLS

[formerly E020101] & . & . � � � �

INTRODUCTION

OVERVIEW

Where iden!fied as a viable water source, wells shall be used, and shall comply with the following requirements.

OBO-UNIQUE CODE REQUIREMENTS

OBO-ICS IZC Chapter 8 for wells

RELATED CONTENT PAGES

F07 Divisions 31-33 OBO Standard Specs

Sec s t � n ater Supply Wells

E030101-

01.0 1

New Wells

1. Well type selec!on shall be based upon AWWA Manual M21 and AWWA Standard A100.

2. Well quan!!es and loca!ons shall be determined by the safe yield of the well and the average daily demand. The safe yield is defined as 75% of the maximum sustainable yield.

3. Treatment of well water used to supply irriga!on systems only shall be limited to non-potable standards.

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� � � � � � � � � � z � � � � � � � ¡ � � � ¢ � � £ �

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E030102 IRRIGATION SYSTEM

[formerly E020102]& . & . � � � �

INTRODUCTION

¦ § � � § � � u¨ rriga s t on is required for diploma s t c

� � � t � t s t � � to establish and maintain landscaping.

OBO-UNIQUE CODE REQUIREMENTS

OBO-ICS IZC Chapter 8 for

Minimum safety and health requirements for landscaping irriga!on systems

Irriga!on storage tank

RELATED CONTENT PAGES

E040205 Site Plan! ng

E030102-01 LANDSCAPING REQUIREMENTS

E030102-

01.01

E030102-

01.02

Water-efficient Irriga q r on System© � � � t � � � � s � � ª � � � t � t � � s � � � � � � � � � � � t � � t � � s t � � � � � s � � � � � « � t � � t s � � � � � � � � « � � � � � � t � � � � � t � � � � s� � s � t � t s � � s � � � « � � � � � s � s t � � � � � � � � � � � � � t � � � � � � � s � � � � � � � s � � � � � � � t � t s � � « � � � t � � � � s � � � � � t � � � s t � �� � � � � � � � � � � � � � s t � � � � � � � � � � ¬ � � t � � t � � s t � � � � � s � � � � � � � � � � � � � � � � � s � � � s � � � t s � � � t � � � t � s � � �� � � � � � � � � � s � � � � � t � � � � � � � � � � � � � � � � � � � s � � � t ® � � � � � s � � � � � � � © � � � t � � � � � ª � � t � s � � � � � � � � � � ªt � � t � � s � � � � � � � � � « � � � � � � � � � � � � � � � t s � t � s � � � � � � t � � � � � � s t � t s � � � � � � �

Excep q r

on. Where directed by OBO.

Temporary Irriga q r on System ¬ s � � « � � � � � t � � t � � s t � � � � � s � � t � � � � � « s � � � � � � � � � t � � � s � � � � ¯ ° ¯ � � � � � � ª t � � t � � s � � � � � � � � � « �� � � � � � � � t � � s � � � � s � � � t � � � � � s « � � t � � � ± � � « � � � � � t � � t � � s t � � � � � s � � � � � � � � � � � � � � � � � s � � � s � �� � � � � � � � � � � � � � s � � � � � � � � � � s t � � � � � � � � � � � « � s � � � � « t � � s t � � � � s � � � ² � � � � � t � s � � t � � � « � � � t « t s � s t � �� � � � � � � � � � � s � � � � t � � s � � � s � � � s � � � � � � � ³ � � s � � � � � � � � � � � � « � s � � s t � � � � � � � � s t � � � � t � � � � � �s � � « � � � � � � � � s � � � � � � � � � � � � � � ª � � � � � � � � s � � � t s � � � � � � � � � � s � � � ´ � � � s � � � � � � � � � � � � ª� « � � � s � � � � � � � � µ �

0 1 2 3 4 5 6 7 8 3 9 7 : ; 1 7 5 7 3< = < = : > : 2 ? 1 @ A B 1 C D B 2 D E 2 1, � � $ � # � F � G # H � � � � $ $ � I � � * J , G H K L M M N O O P Q P R P S TL Q U V S E030102-

01.04

E030102-

01.05

E030102-

01.06

1. Trees and Palms: Root watering system or bubbler.

2. Shrub Beds: Drip with point-source emi"ers.

Pop-up spray where directed by OBO.

3. Groundcover: Drip line with conven!onal emi"ers.

4. Lawn: Pop-up spray with rotary nozzle.

Excep!on. Rotor or impact at large lawn areas where directed by OBO.

5. Reclaimed water use for irriga!on: Refer to OBO-ICS IZC Chapter 8 Water Quality for require d water quality standards.

E 030102-

01.07

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© � � � t � � t � � t � � s t � � � � � s � � � � � � � t s � � � t � � � t � s � � � � � � � � � � � � � � t � � � � � ® � � � � � � � � � � s � � � ¨ � � t � � s t � �� � � s � � � � � � � � � � � � � � � � « � s t � � � � t s � � � t � � � t � s � � � � � � � � � � � � � � s � � � s t � � � � s � � � � � � � � � s � � � � t �� � � � t � t � � s � � � � � � � � t � s � � � � � � � t � � � � � � � s � � « � � � s � � � � � s ª « � t � s � � � � � � � � � � � � , � � $ � # � F � G # H � � � � $ $ � I � � * J , G H K

E030102-

01.03

� y y r ¶ x q r ~ � u x q v y � q ~ y x ¶ v £ x � ¸ Provide a dedicated underground irriga s t on storage tank. The storage tank shall be sized to hold at a minimum sufficient volume to provide irriga s t on water needs for complete watering of all irrigated areas for the two highest demand days of the year. When u s t lizing captured rainwater, size the storage tank to provide rainwater to the irriga s t on system for at least 50% of the yearly volume unless otherwise directed by OBO.

Pumping System

A pumping system shall be provided to distribute the water to meet system requirements.

Hose Bibbs

Hose bibbs, hydrants, quick coupler valves (Q.C.), and similar devices are allowed only in the irrigated areas, must be within a metered irriga s t on system and may not use reclaimed water. Hose bibbs from the irriga s t on system are not allowed for general site maintenance and cleaning. Hose bibbs must be below ground level in a locked vault with appropriate signage.

Irriga q r on System Types

Provide the following irriga s t on types:� ¹ º v / q r ~ � »

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