Stormwater Pollution Prevention Plan - Phoenix Sky Harbor ...

Corrective Action Report
As required by MSGP-2010, Part 3.3, within 72 hours of discovery of any conditions listed in
Part 3.1, the permittee shall identify the condition triggering the need for corrective action
review, a description of the problem identified and the date the problem was identified, which
shall be maintained with this SWPPP. In addition, within 14 calendar days of discovery of any
condition listed in Part 3.1, the permittee shall summarize the corrective action taken or to be
taken, whether SWPPP modifications are required as a result of this discovery or corrective
action, the date the corrective action was initiated or will be initiated and the date the corrective
action was completed or is expected to be completed, which shall be maintained with the
SWPPP.
Fill out the following information within 72 hours of discovering a problem triggering a corrective action.
Date Problem Identified: September 24, 2012
Trigged Condition(s)
(check one):
Describe Identified
Problem:
☒ An unauthorized discharge (e.g., discharge of non-stormwater not
authorized by the permit) to a water of the U.S. or to a regulated MS4
occurs at the facility
☐ A discharge violates a numeric effluent limitation guideline
☐ Facility discharge cause or contributes to an exceedance of an applicable
water quality standard or an adopted waste load allocation
☐ Modification to the control measures are necessary to meet the permit
requirements in MSGP-2010 Part 2.2
A City of Phoenix motor grader broke a fuel valve during grading work on a
roadway along the southern portion of the low flow channel in the Salt River.
Approximately 74 gallons of biodiesel fuel were released.
Fill out the following information within 14 calendar days of discovering a problem triggering a
corrective action.
Date Corrective Action
Initiated/Will Be Initiated:
September 24,
2012
Date Corrective Action Completed/
Expected to be Completed:
September 24,
2012
Summarize Corrective Action:
The impacted soils were excavated based on visual evidence of contamination and containerized for
proper disposal. Soils were scraped along an 0.3 mile-section of the roadway and a 15’x75’x5’ pit was
excavated. A total of 300 tons of soil were removed. A total of 12 confirmation samples were collected for
analysis of volatile organic compounds, polycyclic aromatic hydrocarbons, and Diesel and oil range
organics (DRO and ORO). All confirmation soil samples contaminant concentrations were below
residential Soil Remediation Levels (rSRLs) (Arizona Administrative Code R18-7-200, Appendix A) for all
contaminants tested. There are no rSRLs for DRO or ORO. A composite sample of the excavated soils
collected for waste characterization prior to disposal.
The excavation and testing report with sample location maps and analytical results are attached to this
Corrective Action Form.
No changes to the SWPPP are planned in response to this incident.