ADOPTS WITH AMENDMENTS:

International Green Construction Code 2012 (IGCC 2012)

Heads up: There are no amended sections in this chapter.
The provisions of this chapter shall establish the means of conserving water, protecting water quality and providing for safe water consumption.

702.1 Fitting and Fixture Consumption

AMENDMENT
This section has been amended at the state or city level.
Fixtures shall comply with Table 702.1


.

TABLE 702.1
MAXIMUM FIXTURE AND FITTING FLOW RATES
FOR REDUCED WATER CONSUMPTION

FIXTURE OR FIXTURE FITTING TYPE MAXIMUM FLOW RATE
Showerheada 2.0 gpm and WaterSense labeled
Lavatory faucet and bar sink—private 1.5 gpm and WaterSense labeled
Lavatory faucet—public (metered) 0.25 gpcb
Lavatory faucet—public (nonmetered) 0.5 gpm
Kitchen faucet—private 2.2 gpm
Kitchen and bar sink faucets in other
than dwelling units and guestrooms
2.2 gpm
Urinal 0.5 gpf and WaterSense labeled or nonwater urinal
Water closet—public and remotec 1.6 gpf
Water closet—public and nonremote 1.28 gpf averaged, e
Water closet-tank type, private 1.28 gpf and WaterSense labeledd
Water closet—flushometer type, private 1.28 gpfe
Prerinse spray valves 1.3 gpm
Drinking fountains (manual) 0.7 gpm
Drinking fountains (metered) 0.25 gpcb
For SI: 1 foot = 304.8 mm, 1 gallon per cycle (gpc) = 3.8 Lpc, 1 gallon per flush (gpf) = 3.8 Lpf, 1 gallon per minute (gpm) = 3.8 Lpm.
  1. Includes hand showers, body sprays, rainfall panels and jets. Showerheads shall be supplied by automatic compensating valves that comply with ASSE 1016 or ASME A112.18.1/CSA B125.1 and that are specifically designed to function at the flow rate of the showerheads being used.
  2. Gallons per cycle of water volume discharged from each activation of a metered faucet.
  3. A remote water closet is a water closet located not less than 30 feet upstream of other drain line connections or fixtures and is located where less than 1.5 drainage fixture units are upstream of the drain line connection.
  4. The effective flush volume for a dual-flush water closet is defined as the composite, average flush volume of two reduced flushes and one full flush.
  5. In public settings, the maximum water use of a dual flush water closet is based solely on its full flush operation; not an average of full and reduced volume flushes.
Tub spout leakage from combination tub and shower valves that occurs when the outlet flow is diverted to the shower shall not exceed 0.1 gpm, measured in accordance with the requirements of ASME A112.18.1/CSA B125.1.
Food establishment prerinse spray valves shall have a maximum flow rate in accordance with Table 702.1 and shall shut off automatically when released.
Drinking fountains equipped with manually controlled valves shall shut off automatically upon the release of the valve. Metered drinking fountains shall comply with the flow volume specified in Table 702.1.
The fixture drain for nonwater urinals shall connect to a branch drain that serves one or more lavatories, water closets or water-using urinals that discharge upstream of such urinals.
Sections 702.6.1 through 702.6.4 shall regulate appliances that are not related to space conditioning.

702.6.1 Clothes Washers

AMENDMENT
This section has been amended at the state or city level.
Clothes washers of the type in the ENERGY STAR® program as defined in "ENERGY STAR" Program Requirements, Product Specification for Clothes Washers, Eligibility Criteria," shall have a water factor (WF) not exceeding 6.0 and a modified energy factor (MEF) of not less than 2.0.

702.6.2 Ice Makers

AMENDMENT
This section has been amended at the state or city level.
Ice makers producing cubed-type ice shall be ENERGY STAR qualified as commercial ice machines. Ice makers of a type not currently ENERGY STAR qualified, such as flake, nugget or continuous-type ice makers, shall not exceed the total water use of 25 gallons per 100 pounds (208 L per 100 kg) of ice produced.

Exception: Under counter ice makers.

702.6.3 Steam Cookers

AMENDMENT
This section has been amended at the state or city level.
Steam cookers with drain connections shall consume no more than 5 gal (18.9 L)/hour/pan, and those without drain connections shall consume no more than 2 gal (7.6 L)/hour/pan.
Dishwashers shall be ENERGY STAR qualified where an ENERGY STAR category exists for the specific dishwasher type. Where an ENERGY STAR category does not exist, the dishwasher shall be in accordance with Table 702.6.4.

TABLE 702.6.4
MAXIMUM WATER CONSUMPTION
FOR COMMERCIAL DISHWASHERS
DISHWASHER TYPE MAXIMUM WATER CONSUMPTION
Rackless conveyor 2.2 gallons per minute
Utensil washer 2.2 gallons per rack

For SI: 1 gallon per minute = 3.785 Lpm.

702.7 Municipal Reclaimed Water

AMENDMENT
This section has been amended at the state or city level.
Hot and tempered water distribution shall comply with either the maximum pipe length or maximum pipe volume limits in this section. Hot and tempered water shall be delivered to the outlets of individual showers, combination tub-showers, sinks, lavatories, dishwashers, washing machines and hot water hose bibbs in accordance with Section 702.8.1 or Section 702.8.2. For purposes of this section, references to pipe shall include tubing. For purposes of this section, the source of hot or tempered water shall be considered to be a water heater, boiler, circulation loop piping or electrically heat-traced piping.
The maximum allowable pipe length from the source of hot or tempered water to the termination of the fixture supply pipe shall be in accordance with the maximum pipe length columns in Table 702.8.2. Where the length contains more than one size of pipe, the largest size shall be used for determining the maximum allowable length of the pipe in Table 702.8.2.
The water volume in the piping shall be calculated in accordance with Section 702.8.2.1. The maximum volume of hot or tempered water in the piping to public lavatory faucets, metering or nonmetering, shall be 2 ounces (0.06 L). For fixtures other than public lavatory faucets, the maximum volume shall be 64 ounces (1.89 L) for hot or tempered water from a water heater or boiler; and 24 ounces (0.7 L) for hot or tempered water from a circulation loop pipe or an electrically heat-traced pipe.

TABLE 702.8.2
MAXIMUM LENGTH OF PIPE OR TUBE
NOMINAL PIPE OR TUBE
SIZE (inch)
LIQUID OUNCES PER FOOT
OF LENGTH
MAXIMUM PIPE OR TUBE LENGTH
System without a circulation
loop or heat-traced line (feet)
System with a circulation
loop or heat-traced line (feet)
Lavatory faucets — public
(metering and nonmetering)
(feet)
1/4a 0.33 50 16 6
5/16a 0.5 50 16 4
3/8a 0.75 50 16 3
1/2 1.5 43 16 2
5/8 2 32 12 1
3/4 3 21 8 0.5
7/8 4 16 6 0.5
1 5 13 5 0.5
11/4 8 8 3 0.5
11/2 11 6 2 0.5
2 or larger 18 4 1 0.5

For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 gallon per minute = 3.785 L/m, 1 ounce = 29.6 ml.
  1. The flow rate for 1/4-inch size pipe or tube is limited to 0.5 gallons per minute; for 5/16-inch size, it is limited to 1 gpm; for 3/8-inch size, it is limited to 1.5 gpm.
The volume shall be the sum of the internal volumes of pipe, fittings, valves, meters and manifolds between the source of hot water and the termination of the fixture supply pipe. The volume shall be determined from the liquid ounces per foot column of Table 702.8.2. The volume contained within fixture shutoff valves, flexible water supply connectors to a fixture fitting, or within a fixture fitting shall not be included in the water volume determination. Where hot or tempered water is supplied by a circulation loop pipe or an electrically heat-traced pipe, the volume shall include the portion of the fitting on the source pipe that supplies water to the fixture.

702.9 Trap Priming Water

AMENDMENT
This section has been amended at the state or city level.

702.9.1 Continuous Operation Prohibited

AMENDMENT
This section has been amended at the state or city level.

702.9.2 Volume Limitation

AMENDMENT
This section has been amended at the state or city level.

702.9.3 Water Criteria

AMENDMENT
This section has been amended at the state or city level.
Water-powered pumps shall not be used as the primary means of removing ground water from sumps. Where used as an emergency backup pump for the primary pump, the primary pump shall be an electrically powered pump and the water-powered pump shall be equipped with an auditory alarm that indicates when the water-powered pump is operating. The alarm shall have a minimum sound pressure level rating of 85 dB measured at a distance of 10 feet (3048 mm). Where water-powered pumps are used, they shall have a water-efficiency factor of pumping not less than 2 gallons (7.6 L) of water to a height of 8 feet (2438 mm) for every 1 gallon (3.8 L) of water used to operate the pump, measured at a water pressure of 60 psi (413.7 kPa). Pumps shall be clearly marked as to the gallons (liters) of water pumped per gallon (liters) of potable water consumed.

702.11 Food Service Handwashing Faucets

AMENDMENT
This section has been amended at the state or city level.
The water supply to a dipper well shall have a shutoff valve and flow control valve. Water flow into a dipper well shall not exceed 1 gpm (3.78 Lpm) at a supply pressure of 60 psi (413.7 kPa).

702.13 Automated Vehicle Wash Facilities

AMENDMENT
This section has been amended at the state or city level.
Not less than 50 percent of the water used for the rinsing phase of the wash cycle at automated vehicle wash facilities shall be collected to be reused for the washing phase. Towel and chamois washing machines shall have high-level water cut-offs.

702.13.1 Nonpotable Water Use

AMENDMENT
This section has been amended at the state or city level.
Except for water recirculated within the facility, potable and nonpotable water use for automobile washing shall not exceed 40 gallons (151 L) per vehicle for in-bay automatic washing, and 35 gallons (132.5 L) per vehicle for conveyor and express type car washing.

Exception: Bus and large commercial vehicle washing facilities.
Spray wand nozzles used at self-service vehicle wash facilities shall discharge not more than 3 gpm (11.4 Lpm). Faucets for chamois wringer sinks shall be of the self-closing type.
Waste water from reverse osmosis water treatment systems installed in vehicle washing facilities shall discharge to the washing phase water holding tank.
The water flow into a commercial food waste disposer in a food establishment shall be controlled by a load-sensing device such that the water flow does not exceed 1 gpm (3.78 Lpm) under no-load operating conditions and 8 gpm (30.2 Lpm) under full-load operating conditions.

702.17 Combination Ovens

AMENDMENT
This section has been amended at the state or city level.

702.18 Autoclaves and Sterilizers

AMENDMENT
This section has been amended at the state or city level.

702.18.1 Vacuum Autoclaves and Sterilizers

AMENDMENT
This section has been amended at the state or city level.
Except where the discharge is contaminated with hazardous materials or pathogens, the discharge water from liquid ring vacuum pumps shall be recovered for reuse within the pump or for other onsite applications.

702.20 Film Processors

AMENDMENT
This section has been amended at the state or city level.

703.1 Hydronic Closed Systems

AMENDMENT
This section has been amended at the state or city level.

703.2 Humidification Systems

AMENDMENT
This section has been amended at the state or city level.

703.3 Condensate Coolers and Tempering

AMENDMENT
This section has been amended at the state or city level.

703.4 Condensate Drainage Recovery

AMENDMENT
This section has been amended at the state or city level.
Once-through cooling shall be prohibited. Heat exchangers shall be connected to a recirculating water system such as a chilled water loop, cooling tower loop or similar recirculating system.

703.6 Humidifier Discharge

AMENDMENT
This section has been amended at the state or city level.

703.7 Cooling Towers, Evaporative Condensers and Fluid Coolers

AMENDMENT
This section has been amended at the state or city level.
Cooling towers, evaporative condensers, and fluid coolers shall be installed in accordance with the requirements of Section 908 of the Mechanical Code.

703.7.1 Location

AMENDMENT
This section has been amended at the state or city level.
Cooling towers, evaporative condensers and fluid coolers shall be located on the property as required for buildings in accordance with the Building Code and shall be located so as to prevent the discharge vapor plumes from entering occupied spaces. Plume discharges shall be not less than 5 feet (1524 mm) above and 20 feet (6096 mm) away from any ventilation inlet to a building.
The use of potable water for once-through or single-pass cooling operations is prohibited.
The metering of mechanical systems, system components, equipment and appliances shall be conducted in accordance with Section 705.1.
Cooling towers, evaporative condensers, and fluid coolers shall be equipped with conductivity controllers and overflow alarms.

703.7.5 Drift

AMENDMENT
This section has been amended at the state or city level.
Where nonpotable water is used within cooling towers, evaporative condensers and fluid coolers, it shall conform to the water quality and treatment requirements of the jurisdiction having authority and the water chemistry guidelines recommended by the equipment manufacturers.
The discharge water from cooling towers used for air-conditioning systems shall be in compliance with Table 703.7.7. Where the discharge water is not captured for reuse, it shall be discharged and treated in accordance with jurisdictional requirements, if applicable.
Exception: Discharge water with total dissolved solids in excess of 1,500 ppm (1,500 mg/L), or silica in excess of 120 ppm (120 mg/L) measured as silicon dioxide shall not be required to meet the minimum parameters specified in Table 703.7.7.

TABLE 703.7.7
MINIMUM CYCLES OF CONCENTRATION FOR DISCHARGE WATER
MAKEUP WATER TOTAL
HARDNESS (mg/L)
a
MINIMUM CYCLES OF
CONCENTRATION
< 200 5
≥ 200 3.5
  1. Total hardness concentration expressed as calcium carbonate

703.8 Wet-Hood Exhaust Scrubber Systems

AMENDMENT
This section has been amended at the state or city level.

703.8.1 Washdown Systems

AMENDMENT
This section has been amended at the state or city level.

703.8.2 Water Sources

AMENDMENT
This section has been amended at the state or city level.
Evaporative cooling systems shall use less than 4 gallons of water per ton-hour (12 L per kWh) of cooling capacity when system controls are set to the maximum water use. The amount of water use shall be expressed in maximum water use per ton-hour (kWh) of cooling capacity and shall be marked on the equipment, included in product user manuals, included in product information literature and included in manufacturer's instructions. Water use information shall be readily available at the time of code compliance inspection.
Cooling systems shall be equipped with an overflow alarm to alert building owners, tenants or maintenance personnel when the water refill valve continues to allow water to flow into the reservoir when the reservoir is full. The alarm shall have a minimum sound pressure level rating of 85 dB measured at a distance of 10 feet (3048 mm).
Cooling systems shall automatically cease pumping water to the evaporation pads when sensible heat reduction is not needed.
A water quality management system such as a timer or water quality sensor shall be required. Where timers are used, the time interval between the discharge events of the water reservoir shall be set to 6 hours or greater of cooler operation. Continuous discharge or continuous bleed systems shall be prohibited.
Discharge water shall be reused where appropriate applications exist on site. Where a nonpotable water source system exists on site, evaporative cooler discharge water shall be collected and discharged to such collection system.

Exception: Where the reservoir water will adversely affect the quality of the nonpotable water supply making the nonpotable water unusable for its intended purposes.

Where discharge water is not required to be recovered for reuse, the sump overflow pipe shall not directly connect to a drain. Where the discharge water is discharged into a sanitary drain, an air gap of not less than 6 inches (150 mm) shall be required between the termination of the discharge pipe and the drain opening. The discharge pipe shall terminate in a location that is readily visible to the building owners, tenants or maintenance personnel.
Water softeners shall comply with Sections 704.1.1 through 704.1.4.
Water softeners shall be equipped with demand-initiated regeneration control systems. Such control systems shall automatically initiate the regeneration cycle after determining the depletion, or impending depletion of softening capacity.
Water softeners shall have a maximum water consumption during regeneration of 5 gallons (18.9 L) per 1000 grains (17.1 g/L) of hardness removed as measured in accordance with NSF 44.

704.1.3 Waste Connections

AMENDMENT
This section has been amended at the state or city level.
Waste water from water softener regeneration shall not discharge to reclaimed water collection systems and shall discharge in accordance with the Plumbing Code.

704.1.4 Efficiency and Listing

AMENDMENT
This section has been amended at the state or city level.
Water softeners that regenerate in place, that are connected to the water system they serve by piping not exceeding 11/4 inches (31.8 mm) in diameter, or that have a volume of 3 cubic feet (0.085 m3) or more of cation exchange media shall have a rated salt efficiency of not less than 4,000 grains of total hardness exchange per pound of salt (571 g of total hardness exchange per kg of salt), based on sodium chloride equivalency and shall be listed and labeled in accordance with NSF 44. All other water softeners shall have a rated salt efficiency of not less than 3,000 grains of total hardness exchange per pound of salt (429 g of total hardness exchange per kg of salt), based on sodium chloride equivalency.

704.2 Reverse Osmosis Water Treatment Systems

AMENDMENT
This section has been amended at the state or city level.
Point-of-use reverse osmosis treatment systems shall be listed and labeled in accordance with NSF 58. Point-of-use reverse osmosis systems shall be equipped with an automatic shutoff valve that prevents the production of reject water when there is no demand for treated water.

704.3 Onsite Reclaimed Water Treatment Systems

AMENDMENT
This section has been amended at the state or city level.
Onsite reclaimed water treatment systems shall be listed and labeled to NSF 350. These systems shall include gray water, rainwater, and other nonpotable water reuse treatment systems and waste water treatment systems used to produce nonpotable water for water closet and urinal flushing, surface irrigation and similar applications.

705.1 Metering

AMENDMENT
This section has been amended at the state or city level.
Water consumed from any source associated with the building or building site shall be metered. Each potable and reclaimed source of water, and each onsite nonpotable water source, shall be metered separately. Meters shall be installed in accordance with the requirements of the Plumbing Code. For the purposes of Section 705.1.1, Each meter identified in Table 705.1.1 shall be capable of communicating water consumption data remotely and at a minimum, be capable of providing daily data with electronic data storage and reporting capability that can produce reports that show daily, monthly, and annual water consumption.

705.1.1 Metering

AMENDMENT
This section has been amended at the state or city level.
All potable and nonpotable water supplied to the applications listed in Table 705.1.1 shall be individually metered in accordance with the requirements indicated in Table 705.1.1. Similar appliances and equipment shall be permitted to be grouped and supplied from piping connected to a single meter.

TABLE 705.1.1
METERING REQUIREMENTS

APPLICATION REQUIREMENTS
Irrigation Irrigation systems that are automatically controlled shall be metered.
Tenant spaces Tenant spaces that are estimated to consume over 1,000 gallons of water per day shall be metered individually.
Onsite water collection systems The makeup water lines supplying onsite water collection systems shall be metered.
Ornamental water features Ornamental water features with a permanently installed water supply shall be required to utilize a
meter on makeup water supply lines.
Pools and in-ground spas Indoor and outdoor pools and in-ground spas shall be required to utilize a meter on makeup water supply lines.
Cooling towers Cooling towers of 100 tons capacity or greater or groups of towers shall be required to utilize a meter
on makeup water and blow-down water supply lines.
Steam boilers The makeup water supply line to steam boilers anticipated to draw more than 100,000 gallons annually or having a rating of 500,000 Btu/h or greater shall be metered.
Industrial processes Industrial processes consuming more than 1,000 gallons per day on average shall be metered individually.
Evaporative coolers Evaporative coolers supplying in excess of 0.6 gpm, on average, makeup water shall be.
Fluid coolers and chillers Water-cooled fluid coolers and chillers that do not utilize closed-loop recirculation shall be metered.
Roof spray systems Roof spray systems for irrigating vegetated roofs or thermal conditioning shall be metered.
For SI: 1 gallon = 3.8 L, 1 gallon per minute = 3.8 Lpm, 1 ton = 12,000 Btu, 1 British thermal unit per hour = 0.00029 kWh.

Section 706 Nonpotable Water Requirements

AMENDMENT
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706.1 Scope

AMENDMENT
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706.2 Signage Required

AMENDMENT
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706.3 Water Quality

AMENDMENT
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Section 707 Rainwater Collection and Distribution Systems

AMENDMENT
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707.1 Scope

AMENDMENT
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707.2 Potable Water Connections

AMENDMENT
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707.3 Nonpotable Water Connections

AMENDMENT
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707.4 Installation

AMENDMENT
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707.5 Rainwater Collected for Landscape Irrigation

AMENDMENT
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707.6 Approved Components and Materials

AMENDMENT
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707.7 Insect and Vermin Control

AMENDMENT
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707.8 Drainage

AMENDMENT
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707.9 Freeze Protection

AMENDMENT
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707.10 Trenching Requirements

AMENDMENT
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707.11 Rainwater Catchment and Collection Systems

AMENDMENT
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707.11.1 Collection Surface

AMENDMENT
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707.11.1.1 Potable Water Applications

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707.11.2 Debris Excluders

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707.11.3 Roof Gutters and Downspouts

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707.11.3.1 Slope

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707.11.3.2 Size

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707.11.3.3 Cleanouts

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707.11.4 Collection Pipe Materials

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707.11.4.1 Joints

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707.11.4.2 Size

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707.11.4.3 Marking

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707.11.5 Filtration

AMENDMENT
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707.11.6 Disinfection

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707.11.7 Storage Tank

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707.11.7.1 Location

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707.11.7.2 Materials

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707.11.7.2.1 Wooden Tanks

AMENDMENT
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707.11.7.3 Makeup Water

AMENDMENT
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707.11.7.4 Overflow

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707.11.7.5 Access

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707.11.7.6 Venting

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707.11.7.7 Inlets

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707.11.7.8 Outlets

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707.11.7.9 Draining of Tanks

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707.11.7.10 Marking and Signage

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707.11.8 Valves

AMENDMENT
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707.11.8.1 Backwater Valve

AMENDMENT
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707.11.9 Roof Washer

AMENDMENT
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707.11.10 Vent Piping

AMENDMENT
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707.11.11 Pumping and Control System

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707.11.11.1 Water-Pressure-Reducing Valve or Regulator

AMENDMENT
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707.11.12 Distribution Pipe

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707.11.12.1 Materials

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707.11.12.2 Joints

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707.11.12.3 Size

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707.11.12.4 Marking

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707.12 Tests and Inspections

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707.12.1 Drainage and Vent Tests

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707.12.2 Drainage and Vent Final Test

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707.12.3 Water Supply System Test

AMENDMENT
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707.12.4 Inspection and Testing of Backflow Prevention Assemblies

AMENDMENT
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707.12.5 Inspection Vermin and Insect Protection

AMENDMENT
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707.12.6 Roof Gutter Inspection and Test

AMENDMENT
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707.12.7 Roofwasher Test

AMENDMENT
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707.12.8 Storage Tank Tests

AMENDMENT
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707.12.9 Supply Pressure Test

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707.12.10 Water Quality Test

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707.13 Operations and Maintenance Manuals

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707.13.1 Manual

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707.13.2 Schematics

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707.13.3 Maintenance Procedures

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707.13.4 Operations Procedures

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707.14 System Abandonment

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707.15 Potable Water Applications

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707.15.1 Water Quality Testing

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707.15.1.1 Test Methods

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707.15.1.1.1 Annual Tests Required

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707.15.1.1.2 Quarterly Tests Required

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707.15.1.2 Test Records

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Section 708 Gray Water Systems

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708.1 Scope

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708.2 Permits

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708.3 Potable Water Connections

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708.4 Nonpotable Water Connections

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708.5 Installation

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708.5.1 Gray Water Systems for Landscape Irrigation

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708.6 Applications

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708.7 Approved Components and Materials

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708.8 Insect and Vermin Control

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708.9 Freeze Protection

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708.10 Trenching Requirements

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708.11 System Abandonment

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708.12 Gray Water Systems

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708.12.1 Gray Water Sources

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708.12.1.1 Prohibited Gray Water Sources

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708.12.2 Traps

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708.12.3 Collection Pipe

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708.12.3.1 Joints

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708.12.3.2 Size

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708.12.3.3 Marking

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708.12.4 Filtration

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708.12.5 Disinfection

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708.12.6 Storage Tank

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708.12.6.1 Sizing

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708.12.6.2 Location

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708.12.6.3 Materials

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708.12.6.3.1 Wood Tanks

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708.12.6.4 Makeup Water

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708.12.6.5 Overflow

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708.12.6.6 Access

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708.12.6.7 Venting

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708.12.6.8 Outlets

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708.12.6.9 Drain

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708.12.6.10 Signage

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708.12.7 Valves

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708.12.7.1 Bypass Valve

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708.12.7.2 Backwater Valve

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708.12.8 Vent Piping

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708.12.9 Pumping and Control System

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708.12.9.1 Standby Power

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708.12.9.2 Inlet Control Valve Alarm

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708.12.9.3 Water-Pressure-Reducing Valve or Regulator

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708.12.10 Distribution Pipe

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708.12.10.1 Materials

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708.12.10.2 Joints

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708.12.10.3 Size

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708.12.10.4 Marking

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708.13 Tests and Inspections

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708.13.1 Drainage and Vent Test

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708.13.2 Drainage and Vent Final Test

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708.13.3 Water Supply System Test

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708.13.4 Inspection and Testing of Backflow Prevention Assemblies

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708.13.5 Inspection Vermin and Insect Protection

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708.13.6 Storage Tank Tests

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708.13.7 Supply Pressure Test

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708.13.8 Water Quality Test

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708.14 Subsurface Gray Water Irrigation Systems

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708.14.1 Estimating Gray Water Discharge

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708.14.2 Percolation Tests

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708.14.2.1 Percolation Tests and Procedures

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708.14.2.1.1 Percolation Test Hole

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708.14.2.1.2 Test Procedure, Sandy Soils

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708.14.2.1.3 Test Procedure, Other Soils

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708.14.2.1.4 Mechanical Test Equipment

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708.14.3 Permeability Evaluation

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708.14.4 Subsurface Landscape Irrigation Site Location

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708.14.5 Installation

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708.14.5.1 Absorption Area

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708.14.5.2 Seepage Trench Excavations

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708.14.5.3 Seepage Bed Excavations

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708.14.5.4 Excavation and Construction

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708.14.5.5 Aggregate and Backfill

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708.14.6 Distribution Piping

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708.15 Operation and Maintenance Manuals

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708.15.1 Manual

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708.15.2 Schematics

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708.15.3 Maintenance Procedures

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708.15.4 Operations Procedures

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Section 709 Reclaimed Water Systems

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709.1 Scope

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709.2 Permits

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709.3 Potable Water Connections

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709.4 Installation

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709.5 Applications

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709.5.1 Reclaimed Water for Landscape Irrigation

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709.6 Approved Components and Materials

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709.7 Water-Pressure-Reducing Valve or Regulator

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709.8 Trenching Requirements

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709.9 Reclaimed Water Systems

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709.9.1 Distribution Pipe

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709.9.1.1 Materials

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709.9.1.2 Joints

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709.9.1.3 Size

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709.9.1.4 Marking

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709.10 Tests and Inspections

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709.10.1 Water Supply System Test

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709.10.2 Inspection and Testing of Backflow Prevention Assemblies

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Section 710 Alternate Onsite Nonpotable Water Sources

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710.1 Alternate Nonpotable Sources of Water

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