Pollution Sources
No doubt you've heard the saying, "What
goes around comes around." Well, it's especially
true of fertilizers, household cleaners and other
man-made products we use. If used or disposed of improperly,
residue from these products ends up somewhere, which can include our groundwater supply, the Edwards Aquifer. So, who's responsible for
making sure the water we drink is clean? We all are. And
here's the best part, it doesn't require a lot of effort
- just common sense.
Where does
pollution come from?
People, mostly, but to help narrow things down,
two categories have been identified:
| Point
Source Pollution |
| In plain English, this is the
kind of pollution you can trace to the point where
it started (hence the name). Examples include
illegal dumping or untreated waste from factory
discharge pipes. Since we know where this pollution
comes from, it can be monitored and controlled. |
| Non-Point
Source Pollution |
| This one isn't as easy to pinpoint because it's a combination of things, like
fertilizers, pesticides and hazardous chemicals
from a variety of sources and places. These pollutants
seep through the soil and into the groundwater
or enter local waters as a result of heavy rains. |
Run Away
Heavy rains cause stormwater to runoff, picking up
toxins from the ground. Toxins include excess fertilizers,
herbicides and insecticides, motor oil, car battery acid
and other harmful chemicals from products that have been
improperly discarded. Other examples include sediment
from construction sites and bacteria from faulty septic
systems. Because stormwater is untreated, it along with
any pollutants can flow directly into our streams, rivers,
and lakes if we're not careful.
Who's in Charge?
Here in San Antonio, the Resource Protection and Compliance
Division at SAWS, in cooperation with the City of San
Antonio (COSA) and the Texas Department of Transportation
(TxDOT), is responsible to see that point and non-point
source pollution is properly controlled. SAWS informs
folks about the impact that pollution has on our rivers.
They also review erosion control plans, inspect construction
and industrial sites for permit compliance, and coordinate
training workshops for the construction and industry trades.
Storm Drain Stenciling
Program
The Storm Drain Stenciling Program was initiated
in March 1998. Approximately 400 storm drains received
stencils to help increase public awareness of stormwater
and the storm drain system throughout the city (storm
drain inlets are direct conduits to our waterways).