Bacteria
The sources of bacteria in stormwater and waterways come primarily from water fowl and rodents based on the particular community however, dogs are the easy target. While it’s important that people know the sources of bacteria, developing cheerful messages about rats may not get the best response from your audience. Bacteria is a human health issue and does not meet the recreational water use standard in the Willamette Basin. It is important to educate your public regarding your wastewater treatment system so they are aware that treated wastewater does not lead to elevated bacteria levels in waterways in most cases.
Consider the following when addressing sources of bacteria:
Water fowl and rodents – If your City has locations were people feed water fowl, encourage them not to do so. Water quality may improve where there are fewer large congregations of ducks and geese, and feeding wildlife is never a good idea. Frowning on feeding ducks is not a popular message, but making wildlife healthier balances the message
Pet waste – Installing, stocking, and maintaining pet waste stations is a BMP basic and should be a part of your program. Look to expand the message by looking beyond removing waste in pubic areas and focus on backyards. Emphasize that pet waste is not fertilizer.
Leaking septic systems –The use of septic systems varies from community to community and although this is likely not a significant source of bacteria, providing educational material to septic system owners will be viewed on a positive note by DEQ. Click here to learn more about Septic System Maintenance.
Inflow and Infiltration (I & I) or cross-connections – Depending on your system and how it has been inspected and maintained I & I can be a significant source of bacteria. Addressing this potential source is something that can be added to your program when it’s a bit more mature.
