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St. Charles Parish Waterworks District 2

Parent Companies:
EPA Facility ID:
100000102827
Other ID:
PWS ID 1089002
Facility DUNS:
79448924

Location:

Address:
301 Third Street
Luling, LA 70070
County:
ST. CHARLES
Lat / Long:
29.930, -90.364 (Get map)
Method:
Interpolation - Photo
Description:
Process Unit
Horizonal accuracy:
25 m
Horizontal reference datum:
North American Datum of 1983
Source map scale:
24000

Owner/Operator:

Name:
St. Charles Parish Waterworks
Phone:
(985) 783-5110
Address:
P. O. Box 108
Luling, LA 70070
Foreign Address:

Person responsible for RMP implementation:

Name:
Robert Brou
Title:
Director of Waterworks

Emergency contact:

Name:
Dustin Zeringue
Title:
Treatment Foreman
Phone:
(985) 783-5110
24-hour phone:
(985) 783-5113
Ext or PIN:

Other contacts:

Facility (or company) email:
Facility phone:
Facility (or company) URL:

Safety:

Local Emergency Planning Committee:
St. Charles Parish LEPC
Full-Time Equivalent Employees:
33
Covered by OSHA PSM:
No
EPCRA section 302:
Yes
CAA Title Air Operating Permit:
No
CAA Permit ID#:
OSHA Star/Merit Ranking
No
Last Safety Inspection Date:
Sept. 14, 2011
Inspecting Agency:
State environmental agency
Using Predictive Filing:
No

Processes:

Potable Water Treatment
RMP ID:
1000053562
CBI claimed:
No
Program Level:
2
NAICS:
Water Supply and Irrigation Systems (22131)
Chemical name
CAS#
Quantity (lbs.)
CBI
Chlorine
7782-50-5
12,000
No
Public OCA Chemical
0
No

RMP Preparer:

Name:
Robert Brou
Address:
P.O. Box 108
Luling, LA 70057
Foreign Address:

Phone:
(985) 783-5110

Latest RMP Submission:

Date:
June 6, 2014
Type:
Resubmission
Reason:
5-year update (40 CFR 68.190(b)(1))
Registered:
Yes
RMP ID:
1000043408

Deregistration:

Date:
Effective Date:
Reason:
Other Reason:

2. Toxics: Worst-case

Some Risk Management Plan information is not provided in the available RMP data. You need to make an appointment at an EPA Reading Room In order to get access to details from the Off-Site Consequence Analysis (OCA) such as:

Instructions on how to make an EPA appointment can be found here.

Public OCA Chemical (in Potable Water Treatment)
CBI claimed:
No
Percent weight:
Physical state:
Gas liquified by pressure
Model used:
EPA's RMP*Comp(TM)
Release duration (mins):
10.00
Wind speed (meters per sec):
1.5
Stability class:
F
Topography:
Rural
Passive mitigation
considered:
  • None
not considered:
  • Dikes
  • Enclosures
  • Berms
  • Drains
  • Sumps

3. Toxics: Alternative release

Some Risk Management Plan information is not provided in the available RMP data. You need to make an appointment at an EPA Reading Room In order to get access to details from the Off-Site Consequence Analysis (OCA) such as:

Instructions on how to make an EPA appointment can be found here.

Public OCA Chemical (in Potable Water Treatment)
CBI claimed:
No
Percent weight:
Physical state:
Gas liquified by pressure
Model used:
EPA's RMP*Comp(TM)
Wind speed (meters per sec):
3.00
Stability class:
D
Topography:
Rural
Passive mitigation
considered:
  • None
not considered:
  • Dikes
  • Enclosures
  • Berms
  • Drains
  • Sumps
Active mitigation
considered:
not considered:
  • Sprinkler systems
  • Deluge systems
  • Water curtain
  • Neutralization
  • Excess flow valve
  • Flares
  • Scrubbers
  • Emergency shutdown

4. Flammables: Worst-case

None

5. Flammables: Alternative release

None

6. Five-year accident history

No Registered Accidents

7. Prevention: Program level 3

No Prevention Program level 3

8. Prevention Program level 2

Potable Water Treatment, Water Supply and Irrigation Systems (22131)
Prevention Program ID:
1000034973
Safety Review Date
Jan. 24, 2014, since latest RMP submission
PHA Update Date
, since latest RMP submission
Safety Regulations
  • None
Hazards Identified
  • Toxic Release
  • Fire
  • Contamination
  • Equipment failure
  • Cooling loss
  • Hurricanes
Process Controls
  • Manual Shutoffs
  • Automatic Shutoffs
  • Alarms
  • Emergency Power
Mitigation Systems
  • None
Monitoring Systems
  • Process Area
Changes since PHA
  • None Recommended
Training Type
  • Classroom
  • On the Job
Competency Testing
  • Written Test
  • Demonstration
  • Observation
Procedure Review Date
Jan. 24, 2014, since latest RMP submission
Training Review Date
Jan. 24, 2014, since latest RMP submission
Maintenance Review Date
Jan. 24, 2014, since latest RMP submission
Maintenance Inspection Date
July 22, 2013, since latest RMP submission
Equipment Tested
Yes
Management of Change Most Recent Date
Management of Change Review Date
Pre-startup Review Date
Compliance Audit Date
Aug. 12, 2013
Compliance Audit Change Completion Date
None
Incident Investigation Date
None
Incident Invest. Change Completion Date
None
Participation Plan Review Date
Hot Work Review Date
Contractor Safety Review Date
, since latest RMP submission
Contractor Safety Eval. Date
, since latest RMP submission

9. Emergency response

Facility In Community Plan:
Yes
Facility Own Response Plan:
No
Specific Facility Response Plan:
Yes
Inform. Procedures in Response Plan:
No
Emergency Care in Response Plan:
Yes
Plan Review Date:
Response Training Date:
Feb. 10, 2011
Local Response Agency:
Local Response Agency Phone:
(985) 783-5050
Subject To - OSHA EAP:
No
Subject To - OSHA HAZWOPER:
No
Subject To - CWA:
No
Subject To - RCRA:
No
Subject To - OPA:
No
Subject To - State EPCRA:
Yes
Subject To - Other:

Executive Summary

St. Charles Parish Waterworks District 2 operates a potable water treatment plant near the Mississippi River in Luling, LA. Two one ton chlorine cylinders are attached to a vacuum demand regulator system; one is valved in service, the other isolated by cylinder valve. The chlorination system is maintained at a slight vacuum, which allows the regulator to supply chlorine on demand. This system isolates the distribution system from the cylinder should a leak occur. Maximum intended inventory is 12,000 pounds of chlorine, or 6 one ton cylinders.

The Worst Case Scenario was the full release of a one ton cylinder as modeled in RMP Comp. The design feature of the Vacuum demand chlorine system makes the selection of the Alternate Release Scenario a leak or pipe failure at the regulator attachment point to the cylinder. The potential consequences and end point were determined again using the RMP Comp.

To minimize the risk of these events, procedures are in place to ensure the integrity of cylinders being delivered and stored on site. The procedures to change cylinders is posted in the storage area and employees have observed demonstrations during their probationary periods and have been observed performing the evolution during the same period. All operators are required to earn at least a Class IV Louisiana Water Treatment Certification. During preparation for the certification examination, the hazards associated with chlorine are covered in the training manuals.

In the event of a release with the potential for off-site release, the chlorine emergency plan requires the operator to notify the Emergency Operations Center in St. Charles Parish. The Department of Emergency Preparedness will coordinate the necessary emergency response activities.