Check with the local municipal wastewater department to see if reclaimed water is available as a source of non-potable water for toilet flushing. If it is available, this will contribute to compliance with Option 1. 

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Check with the local municipal wastewater department to see if reclaimed water is available as a source of non-potable water for toilet flushing. If it is available, this will contribute to compliance with Option 1. 

Determine if composting toilets or waterless urinals are appropriate for your project. While not common, waterless fixtures can go a long way toward achieving this credit. Composting toilets do affect programming and layout, however, so be sure to conside

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Determine if composting toilets or waterless urinals are appropriate for your project. While not common, waterless fixtures can go a long way toward achieving this credit. Composting toilets do affect programming and layout, however, so be sure to consider them early in the planning stages. However, projects often find that installing only a few composting toilets can help them to achieve this credit while offering a great educational asset. 

Onsite wastewater treatment costs vary widely. Treating to tertiary standards, as required by this credit, can cost significantly more than treating to secondary standards. 

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Onsite wastewater treatment costs vary widely. Treating to tertiary standards, as required by this credit, can cost significantly more than treating to secondary standards. 

Reusing graywater or rainwater incurs additional costs and requires dual plumbing. If you use an under-sink graywater system that shunts the water directly from the sink to the toilet, this also involves additional cost but may be less expensive than a ce

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Reusing graywater or rainwater incurs additional costs and requires dual plumbing. If you use an under-sink graywater system that shunts the water directly from the sink to the toilet, this also involves additional cost but may be less expensive than a centralized, dual-plumbed system. 

Some municipalities requiring rainwater capture to reduce stormwater runoff; if this is the case in your area, consider reusing the rainwater for toilet flushing. 

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Some municipalities requiring rainwater capture to reduce stormwater runoff; if this is the case in your area, consider reusing the rainwater for toilet flushing. 

 Determine which option is best for your project:Option 1, with a focus on fixtures alone, is often the easiest and cheapest way to earn the credit. However, your project must be able to install waterless or pint-per-flush urinals as well as ultra-lo

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Determine which option is best for your project:

Establish goals for indoor and outdoor water and wastewater reduction. You may want to include those goals in the Owner’s Project Requirements for EAp1: Fundamental Commissioning and EAc3: Enhanced Commissioning.

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Establish goals for indoor and outdoor water and wastewater reduction. You may want to include those goals in the Owner’s Project Requirements for EAp1: Fundamental Commissioning and EAc3: Enhanced Commissioning.

Calculating irrigation water use is not required for this credit; however, understanding how indoor water use compares to outdoor water use can help you gauge where to focus your reduction efforts for the greatest benefit. Some water-saving strategies add

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Calculating irrigation water use is not required for this credit; however, understanding how indoor water use compares to outdoor water use can help you gauge where to focus your reduction efforts for the greatest benefit. Some water-saving strategies address both indoor and outdoor water needs holistically. For example, if you treat your wastewater onsite, you can use the treated water to irrigate your landscape as well as to flush toilets. Doing so can contribute to either WEc1: Water Efficient Landscaping or WEp1 and WEc3: Water Use Reduction.

Perform a water-balance study for the entire project in order to make an informed decision about where to focus your water-saving efforts. Survey your project and site for all water sources—stormwater, graywater, and onsite wastewater. 

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Perform a water-balance study for the entire project in order to make an informed decision about where to focus your water-saving efforts. Survey your project and site for all water sources—stormwater, graywater, and onsite wastewater. 

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