Drink Smart
Instead of making repeated trips to the drinking fountain, bring a canteen or sturdy plastic bottle filled with water from home. You'll be able to stay hydrated all day long if your canteen or bottle has at least a 64 oz. capacity. If you drink from the fountain, let go of the button or handle while taking a breath or socializing--this only sends fresh, unused water right down the drain.
Look After Leaks
When using the restroom, turn off any faucets that may have been accidentally left running. If you notice that a faucet or pipe is leaking a substantial amount of water into the sink or onto the floor, report it to your campus custodial office--a leak results in far more water loss than you'd think. Also, turn the faucet completely off when soaping up your hands. Turn it back on to quickly rinse the suds away.
Spy on Sprinklers
Pay attention to the sprinkler systems on your campus in between passing periods. Many sprinklers, especially those on the borders of playing fields, can become knocked out of position and end up watering a patch of concrete instead of a field of grass. Look for sprinklers that are missing their heads, evident by the tall gushing geyser that they produce. Report the location of these issues to your custodial office.
Get the Administration Involved
If your school lacks water-saving toilets, contact your school's administrator (dean, principal or vice principal) and recommend that they be etched into the budget. Also recommend the placement of placards which display proper water saving techniques over sinks, near drinking fountains and next to garden hoses. Rally up like-minded students and create a petition if the administration is apprehensive--it will reveal that water conservation on the campus is an issue worth attention.