Replace your O-rings and washers to repair a leaky sink

Replace your O-rings and washers to see if that solves the problem of a leaky sink or shower. Pipe tape (Teflon tape) can be used to secure loose connections between the faucet and the pipe.  

http://www.epa.gov/watersense/our_water/howto.html

Fixing a leak can save thousands of gallons of water per year

Check your meter during a period when water’s not being used. If the level changes, you have a leak. A leaky tub faucet, toilet or sink can waste thousands of gallons of water per year. 

http://www.epa.gov/WaterSense/water_efficiency/what_you_can_do.html

Insulate hot water pipes with pipe insulation

Insulate hot water pipes with easy to install pre-cut pipe insulation.

http://www.energysavers.gov/your_home/water_heating/index.cfm/mytopic=13070

Set laundry machines for warm and cold water settings to save money

Do laundry on the warm or cold setting instead of hot. Many detergents work just as well in cold or warm water.

http://www.epa.gov/greenhomes/Basement.htm

Installing a solar hot water heater can reduce water heating costs by half

Solar hot water heaters use renewable energy from the sun to heat your building’s water.  Solar hot water heaters, also called solar thermal systems, can reduce your annual energy use for water heating by half, though you will need to supplement these systems during cloudy days.   

http://www.energystar.gov/index.cfm?fuseaction=find_a_product.showProductGroup&pgw_code=WSE

Utilize street trees, planters or rain gardens to effectively manage stormwater

Keep the front of your building shaded and protected.  Take care of the street trees along your property line and on sidewalks near your building.  Planters or rain gardens along your property line and in courtyards can help absorb some of the rainwater that collects on your property.

http://www.milliontreesnyc.org/html/planting/tree_planting_and_care.shtml

Request a free street tree – it helps manage stormwater on your block

The Parks Department plants street trees, free-of-charge, on sidewalks in front of homes, apartment buildings, and businesses in all five boroughs. In order to request a free street tree please use the Parks Department’s forestry service request system.

http://www.milliontreesnyc.org/html/involved/request_a_tree.shtml

Keep gutters clean and clear to prevent floods

Are the gutters on your building in good condition? Their purpose it to keep rainwater away from your building, protecting walls, windows and foundations. Make sure to clean them seasonally and check the gutters after any major weather event.