houstonlogo rjilogo

The Right-to-Know Network

Back to search

Wards 5 & 8 Joint Sewerage Commision

Parent Companies:
EPA Facility ID:
100000100561
Other ID:
Facility DUNS:
0

Location:

Address:
735 Cotten Road
Patterson, LA 70392
County:
ST. MARY
Lat / Long:
29.655, -91.293 (Get map)
Method:
Interpolation - Other
Description:
Storage Tank
Horizonal accuracy:
100 m
Horizontal reference datum:
North American Datum of 1983
Source map scale:

Owner/Operator:

Name:
Wards 5&8 Joint Sewerage Commission
Phone:
(985) 395-4944
Address:
P.O. Box 181
Berwick, LA 70342
Foreign Address:

Person responsible for RMP implementation:

Name:
Mickey Carmouche
Title:
Operator

Emergency contact:

Name:
Mickey Carmouche
Title:
Operator
Phone:
(985) 395-4944
24-hour phone:
(985) 518-4354
Ext or PIN:

Other contacts:

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

Safety:

Local Emergency Planning Committee:
St. Mary Parish LEPC
Full-Time Equivalent Employees:
1
Covered by OSHA PSM:
No
EPCRA section 302:
No
CAA Title Air Operating Permit:
No
CAA Permit ID#:
OSHA Star/Merit Ranking
No
Last Safety Inspection Date:
Inspecting Agency:
EPA
Using Predictive Filing:
No

Processes:

Disinfection
RMP ID:
76012
CBI claimed:
No
Program Level:
2
NAICS:
Sewage Treatment Facilities (22132)
Chemical name
CAS#
Quantity (lbs.)
CBI
Chlorine
7782-50-5
16,000
No
Sulfur dioxide (anhydrous)
7446-09-5
12,000
No
Public OCA Chemical
0
No
Public OCA Chemical
0
No

RMP Preparer:

Name:
GSE Associates, Inc.
Address:
991 Grand Caillou Road
Houma, LA 70363
Foreign Address:

Phone:
(985) 876-6380

Latest RMP Submission:

Date:
Aug. 6, 2008
Type:
Correction of existing RMP
Reason:
Additional information supplied
Registered:
Yes
RMP ID:
52290

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

Disinfection, Sewage Treatment Facilities (22132)
Prevention Program ID:
27774
Safety Review Date
July 11, 2006, since latest RMP submission
PHA Update Date
, since latest RMP submission
Safety Regulations
  • None
Hazards Identified
  • Toxic Release
  • Equipment failure
  • Hurricanes
Process Controls
  • Relief Valves
  • Manual Shutoffs
  • Automatic Shutoffs
  • Emergency Power
  • Backup Pump
  • Grounding Equipment
Mitigation Systems
  • None
Monitoring Systems
  • None
Changes since PHA
  • None Recommended
Training Type
  • None
Competency Testing
  • Observation
Procedure Review Date
Aug. 21, 2006, since latest RMP submission
Training Review Date
July 11, 2006, since latest RMP submission
Maintenance Review Date
July 11, 2006, since latest RMP submission
Maintenance Inspection Date
Aug. 16, 2006, 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. 21, 2006
Compliance Audit Change Completion Date
None
Incident Investigation Date
Aug. 18, 2006
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:
Sept. 15, 2005
Local Response Agency:
Local Response Agency Phone:
(985) 395-3636
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

The Wards 5&8 Regional Sewerage Treatment Facility stores chlorine and sulfur dioxide, which are regulated and considered hazardous by the EPA, under the Chemical Accident Prevention Program. The same properties that make these chemicals so valuable in wastewater treatment also make it necessary to observe certain safety precautions in handling them. Safe handling procedures prevent unnecessary human exposure, reduce the threat to our own personal health and our co-workers, and reduce the threat to nearby members o fthe community. It is our policy to adhere to all applicable Federal and state rules and regulations. Safety depends on the manner in which we handle chlorine and sulfur dioxide combined with the safety devices in herent in the design of this facility, with the safe handling procedures that we use and the training of our personnel.

This wastewater treatment facility is a small facility, designed for 6 million gallons per day, with 2 wastewater holding ponds and is located 735 Cotton Road. The primary purpose of this facility is to treat wastewater from Berwick, Patterson, Sewerage District No. 2 and Sewerage District No. 8 of St. Mary Parish. The water is pumped into the facility through underground pipe. The wastewater is aerated and mixed in the first basin and then enters a settling process in the second basin. From this basin chlorine is added to the wastewater to kill any bacteria that is present. The sulfur dioxide is added to the wastewater stream to minimize the amount of chlorine in the water. The water is discharged into the Intracoastal Waterway or used as irrigation water for the Atchafalaya Golf Course.

The maximum amount of chemical that this facility keeps is eight 1-ton containers of chlorine and six 1-ton containers of sulfur dioxide. Both chlorine and sulfur dioxide are regulated substances.

The worst-case scenario of chlorine or sulfur dioxide is the total failure of one of the 1-ton containers resulting in a release of 20
00 pounds of chemical in 10 minutes. Due to the fact that the cylinders are constructed, tested and inspected under strict guidleines and routinely replaced by the chemical supplier, it is very unlikely that this will ever occur. The distance to the endpoint of the lower toxicity limit for the worst-case scenario of chlorine and sulfur dioxide is 3.0 and 3.1 miles, respectively.

The facility complies with EPA's Accidental Release Prevention Rule and with all applicable state codes and regulations. All employees undergo training in the emergency procedures associated with chlorine. This facility has no reportable release of chlorine in the past five years. This facility's emergency response plan is coordinated with the St. Mary Parish Local Emergency Planning Committee (LEPC). In the case of an emergency the facility's employees are trained to contact the local fire department who will coordinate any necessary actions that need to take place.