STORMWATER MANAGEMENT
Stormwater is runoff from a precipitation event like rain or snow. Urban runoff occurs during activities like car washing and landscape watering. Both types of runoff can come into contact with many pollutants as they flow toward storm drains, washes, and rivers. The Town of Marana implements policies and procedures to reduce, to the maximum extent practicable, pollutant discharges that may affect surface waters.
STORMWATER MANAGEMENT PROGRAM
Stormwater pollution is the major cause of surface water pollution today. The town of Marana is regulated under the Arizona Pollutant Discharge Elimination System (AZPDES) MS4 program. The Arizona Department of Environmental Quality (ADEQ) administers the program and has defined six minimum control measures for compliance.
Public Education and Outreach
Public Involvement and Participation
Illicit Discharge Detection and Elimination
Construction Site Stormwater Runoff Control
Control of Post-construction Site Runoff
Pollution Prevention and Good Housekeeping
Stormwater management Plan
The Town has prepared a Stormwater Management Plan (SWMP) that has been adopted by Town Council. The overall goal of the SWMP is to ensure that stormwater runoff does not cause or contribute to exceedances of surface water quality standards.
Read the Stormwater Management Plan
Make a Comment on the Stormwater Management Plan
Annual Reports for the Town of Marana’s MS4 program
What can I do to help?
Properly maintain your vehicle.
Take your vehicle to a car wash or use biodegradable soaps
Sweep sidewalks and driveways
Use non-toxic chemicals whenever possible in your yard
Pool backwash must drain to landscaped areas or other containment areas within your property
Don’t over-water landscaping
Only rain should go into storm drains. Please report illegal dumping
Carpool when possible
Dispose of household chemicals through the Pima Household Hazardous Waste Program.
What pollutants are entering the storm system?
Automotive: Antifreeze, Brake fluid, Auto transmission fluid, Soot from automotive exhaust, Degreasers, Grease, Gasoline, Motor Oil, Rubber, Tire dust, Trace metals
Household: Barbecue lighter fluid, Bleach, Cleaning Solutions, Disinfectants, Drain Cleaners, Garbage, Paint Stripper & Thinner, Paints, Varnish, Window Cleaners, Wood Preservatives
Pet: Flea Killers, Pet Wastes, Cat litter
Yard: Bare Soil, Grass Clippings, Leaves, Herbicides, Pesticides, Fertilizers, Sawdust, metal shavings, Soap, Detergents, Swimming Pool & Spa Chemicals
Construction guidance
The Town of Marana has a stormwater ordinance and its own requirements for stormwater pollution prevention. All construction projects must submit a SWPPP plan for review and approval regardless of type, size, or location. The SWPPP must be reviewed and approved prior to the issuance of any grading permits.
The application and instructions can be found here. Please ensure that your SWPPP contains the following:
Please show all construction entrances/exits
Please show the location of all stormwater discharge locations
Please show the location of all drywells on site, if any. Please indicate if there will be no drywells
Please include the following general notes:
All portable toilets and wash stations will be staked.
The minimum inspection schedule will be every 14 days and whenever there is a rain event of .5” or greater.
This project is within the MS4 boundaries for the Town of Marana.
An on-site concrete washout will be provided.
Adjacent roads will be inspected daily for track-out and swept as needed.
Grading limits will be clearly staked.
This project will follow/obtain all permits required by ADEQ.
All spills of reportable quantities will be reported to the Town of Marana within 24 hours and in writing within 5 days.
All BMPs will be installed per industry standards.
The Arizona Department of Environmental Quality (ADEQ) may have additional stormwater requirements. For ADEQ questions please visit https://azdeq.gov/SWP.
The Household Hazardous Waste Program
The Household Hazardous Waste Program is a joint effort between the City of Tucson and Pima County. This program is designed to collect hazardous waste from residents in the community.
Common household and automotive products become a hazard to the environment when disposed of improperly. Leftover quantities of these products should never be poured down the drain, put in trash, or stored for excessive periods of time. Bring them to the household waste collection sites for safe disposal (fees may apply).
To visit the Household Hazardous Waste website for more information on locations and items considered hazardous waste, please click on the link below .
Pima County/City of Tucson Household Hazardous Waste Program
Outreach and Education
"Clean Water Starts With Me"
Pima Association of Governments in coordination with the Town of Marana, City of Tucson, Pima County, ADOT and other local agencies is launching its "Clean Water Starts With Me" campaign to inform the public on how to keep stormwater runoff from becoming contaminated with pollutants.
Stormwater Coloring Book
The Town of Marana wants to thank the students of Marana High School whose creativity and artistic ability allowed us to make the coloring book a reality. To view the coloring book, please click on the link below. If you would like to order a copy, please contact the Environmental Engineering Divison at (520) 382-2600.
Stormwater for Kids
Links to EPA Kids Website
