Environmental Information

As storm water flows over driveways and lawns and sidewalks, it picks up debris, chemicals, dirt, and other pollutants. Storm water can flow into a storm sewer system or directly to a lake, stream, river, wetland, or coastal water. Anything that enters a storm sewer is discharged untreated into the water bodies we use for swimming, fishing, and providing drinking water. Polluted runoff is the nation’s greatest threat to clean water.

By practicing healthy household habits, homeowners can keep common pollutants like pesticides, pet waste, grass clippings, and automotive fluids off the ground and out of storm water. Adopt these healthy household habits and help protect lakes, streams, rivers, wetlands, and coastal waters. Remember to share the habits with your neighbors!

Healthy Household Habits for Clean Water

Vehicle and Garage

Use a commercial car wash or wash your car on a lawn or other unpaved surface to minimize the about of dirty, soapy water flowing into the storm drain and eventually into your local water body.

Check your car, boat, motorcycle, and other machinery and equipment for leaks and spills. Make repairs as soon as possible. Clean up spilled fluids with an absorbent material like kitty litter or sand and don’t rinse the spills into a nearby storm drain. Remember to properly dispose of the absorbent material.

Recycle used oil and other automotive fluids at participating service stations. Don’t dump these chemicals down the storm drain or dispose of them in your trash.

Lawn and Garden

Use pesticides and fertilizers sparingly. When use is necessary, use these chemicals in the recommended amounts. Avoid application if the forecast calls for rain; otherwise, chemicals will be washed into your local stream.

Select native plants and grasses that are drought and pest resistant. Native plants require less water, fertilizer, and pesticides.

Sweep up yard debris, rather than hosing down areas. Compost or recycle yard waste when possible.

Don’t over water your lawn. Water during the cool times of the day, and don’t let water run off into the storm drain.

Cover piles of dirt and mulch being used in landscaping projects to prevent these pollutants from blowing or washing off your yard into local water bodies. Vegetate bare spots in your yard to prevent soil erosion.

Home Repair and Improvement

Before beginning an outdoor project, locate the nearest storm drains and protect them from debris and other materials.

Sweep up and properly dispose of construction debris such as concrete and mortars.

Use hazardous substances like paints, solvents, and cleaners in the smallest amounts possible, and follow the directions on the label. Clean up spills immediately, and dispose of the waste safely. Store substances properly to avoid leaks and spills.

Purchase and use nontoxic, biodegradable, recycled, and recyclable products whenever possible.

Clean paint brushes in a sink, not outdoors. Filter and reuse paint thinner when using oil based paints. Properly dispose of excess paints through a household hazardous waste collection program, or donate unused paint to local organizations.

Reduce the amount of paved area and increase the amount of vegetated area in your yard. Use native plants in your landscaping to reduce the need for watering during dry periods. Consider directing downspouts away from paved surface onto lawns and other measures to increase infiltration and reduce polluted runoff.

Pet Care

When walking your pet, remember to pick up the waste and dispose of it properly. Flushing pet waste is the best disposal method. Leaving pet waste on the ground increases public health risks by allowing harmful bacteria and nutrients to wash into the storm drain and eventually into local water bodies.

Swimming Pool and Spa

Drain your swimming pool only when a test kit does not detect chlorine levels.

Whenever possible, drain your pool or spa into the sanitary sewer system.

Properly store pool and spa chemicals to prevent leaks and spills, preferably in a covered area to avoid exposure to storm water.

Septic System Use and Maintenance

Have your septic system inspected by a professional at least every 3 years, and have the septic tank pumped as necessary (usually every 3 to 5 years).

Care for the septic system drain by not driving or parking vehicles on it. Plant only grass over and near the drain to avoid damage from roots.

Flush responsibly. Flushing household chemicals like paint, pesticides, oil, and antifreeze can destroy the biological treatment taking place in the system. Other items, such as diapers, paper towels, and cat litter, can clog the septic system and potentially damage components.

Waste Not….Want Not!

We have always taken our water resources for granted, but now that we are making the transition to surface water in compliance with the Harris-Galveston Subsidence District’s mandates to reduce our dependence on groundwater, people are becoming more interested in using water more efficiently to control costs, too.

When and how we use water in the yard and garden can make a tremendous difference in how much is used. For example, if your water your yard only when it needs it, you could save between 750 and 1,500 gallons of water a month.

Here are some simple tips to help you put a realistic, cost-effective water efficiency plan into effect outside your home.

  • Use native plant and shrubs whenever possible in landscaping your yard. They tend to be more drought tolerant, require watering less frequently, and are often low maintenance, too.

  • Different varieties of grasses, plants and soils use different amounts of water. When original landscape planning is an option, “zone” plants according to their water requirements. Experts suggest that grass be watered separately from flower beds and landscaped areas.

  • In Houston, St. Augustine grass has a high “thirst” requirement. When possible, consider converting some of the grassy areas in your yard to native plant zones.

  • As a general rule, proper watering for most Taxas lawns means applying 1 to 1.5 inches of water per week during the growing season. To figure out how long you’ll need to run your sprinkler, place at least three 1 inch deep cans (e.g., empty cat food or tuna cans) throughout the area the sprinkler covers. Water the length of time you think is correct. Each can should have the same amount of water. If there’s less than an inch of water in the cans, you need to water longer. If the cans have an uneven amount of water, the distribution of the sprinkler needs adjustment. The goal is to apply enough water to wet the soil to the depth of 4-6 inches.

  • Avoid cutting the grass too short. Longer blades of grass will reduce evaporation and root stress since shaded soil will not dry out as quickly. Also, be sure to control any insects that attack your lawn–quickly and completely.

  • Apply fertilizer sparingly to develop the root system and to help keep the lawn healthy. Too much fertilizer, however, will lead to excessive growth…which will then require more watering. Many experts recommend leaving the grass clippings on the lawn, which will minimize the need for additional fertilizer.

  • Stormwater runoff can carry fertilizer directly to streams and rivers, where it can seriously harm water quality. Take care to keep any fertilizer you use on the grass and not on concrete driveways or streets.

  • Water lawns in the early morning hours when evaporation loss will be leww. Early morning waterings are betted that dusk since it helps prevent the growth of fungus.

  • Use a sprinkler that emits large drops of water that remain close to the ground instead of one that sprays a fine mist into the air. Don’t water on windy days; this can waste up to 300 gallons in just one watering! Set the sprinkler so that the lawn is watered…not sidewalks and driveways.

  • If you have a sprinkler system, add a rain sensor. There’s no point in wasting water if Mother Nature has watered the lawn for you.

  • Raising the lawn mower blades just one notch higher can save between 500 and 1,500 gallons a month.

  • For any small areas of grass, consider using a hose to water by hand to keep waste to a minimum.

  • Use plenty of mulch in the planting areas. Not only does this provide a nice, “manicured” look, but the mulch helps keep the ground from overheating, holds moisture that would otherwise evaporate, and helps to discourage weed growth. A good mulch layer can save up to 1,500 gallons of water a month.

  • Use the kind of watering equipment to suit your “target”. Use sprinklers for the lawn areas, and soaker hoses or drip irrigation systems for trees, shrubs, and flower beds.

  • Use drip or trickle irrigation–the slow, frequent application of small amounts of water to the soil area directly surrounding the plant roots–to take care of gardens and landscaped areas. Drip irrigation can save up to 60 percent of water delivered by other systems.