Storm water runoff is water that flows over impervious surfaces during rainfall and picks up pollutants. It can pollute streams, creeks, and other water bodies if not properly managed. Storm water management aims to control both the quantity and quality of storm water runoff through best management practices like retention ponds and street sweeping. Without development, most rainfall would soak into the ground, but urbanization has increased the amount of surface runoff, making storm water management important for protecting water quality.

1. STROM WATER
DEPARTMENT OF RURAL TECHNOLOGY
AND
SOCIAL DEVELOPMENT,
GURU GHASIDAS VISHWAVIDYALAYA BILASPUR (C.G.)
SESSION – 2018-19
PRESENTING BY:
ASHOK MEHAR
M.Sc. (RT) 2nd Semester

2. CONTENTS
• INTRODUCTION
• DEFINITION
• STROMWATER AS A SOURCE OF POLLUTION
• STROMWATER MANAGEMENT
• CONCLUSION
• REFERENCE

3. INTRODUCTION
• In 1972, the National Pollutant Discharge
Elimination System (NPDES) program was
established under the Clean Water Act. This
program requires communities to develop,
implement, and enforce pollution reduction
programs for new development and
redevelopment projects. Practicing the
appropriate methods of storm water runoff
management can protect human and
environmental health.

4. STROM WATER - DEFINITION
• Storm water runoff is defined as the water that
washes over a developed area (rooftops,
roadways, parking lots, etc.) after a precipitation
event. This water picks up pollutants such as
oils, fertilizers, pesticides, sediment, trash,
bacteria, and animal waste among many others
harmful substances. As Madison County grows
so does the amount of storm water runoff. Some
of the water flows into streams and creeks before
travelling into the Pearl River and Ross Barnett
Reservoir.

6. STORMWATER RUNOFF AS A SOURCE
OF POLLUTION
• In addition to the pollutants carried
in stormwater runoff, urban runoff is
being recognized as a cause of pollution
in its own right. In natural catchments
(watersheds) surface runoff entering
waterways is a relatively rare event,
occurring only a few times each year and
generally after larger storm events.
Before development occurred most
rainfall soaked into the ground and
contributed to groundwater recharge or
was recycled into the atmosphere by
vegetation through evapotranspiration .

7. STORMWATER MANAGEMENT
• Managing the quantity and quality of
storm water is termed, "Storm water
Management." The term Best
Management Practice (BMP) or
storm water control measure (SCM) is
often used to refer to both structural
or engineered control devices and
systems (e.g. retention ponds) to treat
or store polluted storm water, as well
as operational or procedural practices
(e.g. street sweeping). Storm water
management includes both technical
and institutional aspects.

9. CONCLUSION
• Storm water is the rainfall that is not absorbed
by the ground. Storm water that does not soak
into the ground becomes surface runoff, which
either flows directly into surface waterways or is
channelled into storm drains, which
eventually discharge to surface waters.
It does not flow to a wastewater treatment
plant.

10. REFERENCE
• www.google.com
• Wikipedia

11. THANK YOU
SUGGESTION PLEASE ...