2009-10-16_PERMIT FILE - M2009082 ‎(12)‎

• Permit No: M2009082
• IBM Index Class Name: PERMIT FILE
• Doc Date: 10/16/2009
• Doc Name: Stormwater Management Plan
• From: Lafarge West, Inc.
• Media Type: D
• Archive: No

Identification of Discharge other than Stormwater
The site will be evaluated for the presence of non-Stormwater discharges. Water associated with
portable wash plants for processing aggregate and mine dewatering as necessary are the primary
sources of non-stormwater on site. Mine dewatering will be monitored as outlined above to
ensure no compliance with our permit restrictions. All other sources will be contained within the
site and are not discharged with stormwater. Water stored and applied on site for dust abatement
will be periodically utilized on the yard site and the access roads to suppress fugitive dust.
Applied dust control is not applied in excess amounts that would result in an off-site discharge of
liquids. Dust abatement is not necessary during precipitation events; therefore, no non-storm
water at the site is intermingled with storm water runoff. Water and other liquids utilized in
other peripheral uses and in the production of aggregate will be contained within the plant. Any
mechanical failure with the potential to allow a surfaces release would be addressed through the
site's spill response or emergency response protocols, free liquids would be isolated and
adsorbed, and adsorbents properly disposed.
Currently, no stormwater or commingled process water are in sufficient quantities to discharge
from the site. Should subsequent water uses be initiated on site, these water sources will be
identified in the table below:

Types of Discharge
No
Discharge Permitted
Process
Water

Unpermitted

Exempt

Control Measures
Mine Dewatering X
Equipment Wash Water X
Dust Control (roads) X
Irrigation return flows X
Other Agricultural discharge X
Fire Fighting discharges X
Foundation Draining(SUMP) X
Springs X
Other
Other
Parsons Mine
Storm Water Management Plan
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