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Houma Water Treatment Plant #2

Parent Companies:
Terr. Par. Consolidated Waterworks District No. 1
EPA Facility ID:
100000071307
Other ID:
Facility DUNS:
0
Parent Company DUNS:
0

Location:

Address:
1551 Barrow Street
Houma, LA 70361
County:
TERREBONNE
Lat / Long:
29.580, -90.722 (Get map)
Method:
GPS Code Measurements (Psuedo Range) Differential (DGPS)
Description:
Other
Horizonal accuracy:
m
Horizontal reference datum:
Source map scale:

Owner/Operator:

Name:
TPCW District No. 1
Phone:
(504) 879-2495
Address:
P.O. Box 630
Houma, LA 70361 -0000
Foreign Address:

Person responsible for RMP implementation:

Name:
Bryan Sampey
Title:
Plant Supervisor
Email:

Emergency contact:

Name:
Tom E. Wilson
Title:
Engineering Manager
Phone:
(504) 879-2495
24-hour phone:
(504) 857-9633
Ext or PIN:
Email:

Other contacts:

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

Safety:

Local Emergency Planning Committee:
Terrebonne Parish LEPC
Full-Time Equivalent Employees:
0
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:
Inspecting Agency:
Never had one
Using Predictive Filing:
No

Processes:

Unspecified process
RMP ID:
28132
CBI claimed:
No
Program Level:
2
NAICS:
Water Supply and Irrigation Systems (22131)
Chemical name
CAS#
Quantity (lbs.)
CBI
Chlorine
7782-50-5
6,000
No
Public OCA Chemical
0
No

RMP Preparer:

Name:
Address:

,
Foreign Address:

Phone:

Latest RMP Submission:

Date:
Jan. 24, 2000
Type:
Correction of existing RMP
Reason:
Registered:
Yes
RMP ID:
20077

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 Unspecified process)
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:
Urban
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 Unspecified process)
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:
Urban
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

, Water Supply and Irrigation Systems (22131)
Prevention Program ID:
10983
Safety Review Date
June 1, 1999, since latest RMP submission
PHA Update Date
, since latest RMP submission
Safety Regulations
  • ASTM Standards
  • ANSI Standards
  • ASME Standards
Hazards Identified
  • Toxic Release
  • Corrosion
  • Equipment failure
  • Floods
  • Tornado
  • Hurricanes
Process Controls
  • Manual Shutoffs
Mitigation Systems
  • None
Monitoring Systems
  • None
Changes since PHA
  • None
Training Type
  • On the Job
Competency Testing
  • Demonstration
  • Observation
Procedure Review Date
June 1, 1999, since latest RMP submission
Training Review Date
June 1, 1999, since latest RMP submission
Maintenance Review Date
June 1, 1999, since latest RMP submission
Maintenance Inspection Date
June 1, 1999, 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
None
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:
No
Inform. Procedures in Response Plan:
No
Emergency Care in Response Plan:
No
Plan Review Date:
Response Training Date:
None
Local Response Agency:
Local Response Agency Phone:
(504) 873-6357
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

27836 LDEQ Facility ID Number

1. Facility accidental release prevention and emergency response policies:
Terrebonne Parish Consolidated Waterworks (TPCW) District No.1 pledges to protect the environment and the health and safety of employees and the community in which we operate. As a public body, we recognize the continuing challenge of fulfilling this pledge while accomplishing our goals. Each of us shares this responsibility to ensure our long-term success. To achieve our goals, we will:
a. Commit to leadership by operating and growing our business in compliance with legal requirements and TPCW District No. 1 environmental, health and safety operating standards, which may be more stringent.
b. Safeguard our employees' health by promoting an accident-free workplace, minimizing exposure to hazardous substances, and providing preventive health care systems.
c. Promote safe handling, use and disposal of our products by acquiring and communicating information and education to our employees and customers.
d. Minimize the environmental impact of our operations by promoting pollution prevention and environmental conservation.
e. Anticipate, evaluate and manage risks by maintaining crisis management programs that emphasize prevention and effective emergency preparedness, response and recovery plans.
f. Commit to continuous improvement by monitoring compliance with regulations and our internal standards and by striving for performance, which compares favorably with industry leaders.
g. Earn the public trust by communicating openly about our policies, programs and performance and advocating sound laws and regulations.

2. Facility description and regulated substances handled:
The Houma Water Treatment Plant #2 provides drinking water to the City of Houma and Districts 2 (Bayou Grand Caillou) and 3 (Bayou Dularge) in the event that the Houma Water Treatment Plant is non-operational.
At this facility, chlorine is the
only regulated substance that exceeds the threshold quantity for toxicity listed under section 112(r) of the Clean Air Act. The average inventory includes one (1) one-ton (2,000 lb.) containers on stand-by and one (1) on-line, for a total of 3,000-lbs. The maximum inventory includes two (2) one-ton (2,000 lb.) containers on stand-by and one (1) on-line, for a total of 6,000-lbs.

3. The worst-case and alternative release scenario's:
The worst-case release scenario is failure of a one-ton (2,000 lb.) chlorine container resulting in a direct release. The entire contents would be released in 10-minutes (200 lbs./min.). The resulting radius to the toxic endpoint (ERPG-2) is 1.30 miles, with an estimated population of 2,100 people.
The alternative release scenario is based on a one-ton (2,000 lb.) chlorine container tubing failure, bad connection, or valve failure resulting in the release of gas through the 5/16-inch diameter valve body opening. It is assumed that the release is limited by the flow of gas through the 5/16-inch valve and that 702-lbs. is released over 60-minutes (estimated release rate = 11.7 lbs./min.). The resulting radius to the toxic endpoint (ERPG-2) is 0.10 miles, with an estimated population of 59 people.
No passive or active mitigation was considered in the release scenario. The releases were assumed to occur outdoors (e.g., garage door open in facility chlorine process area) in an urban area.
The American Water Works Association (AWWA) Compliance Guidance and Model Risk Management Program for Water Treatment Plants manual was used for reference in preparing the RMProgram submittal. RMP*Comp (Ver. 1.06) was used to perform the offsite consequence analyses. LandView .III mapping software was used to obtain census data for the release scenario.

4. The general accidental release prevention program and the specific prevention steps:
The facility complies with EPA / LDEQ accident prevention rule and all applicable sta
te and local codes and regulations. This facilities chlorine system was designed and constructed in accordance with standards from the Chlorine Institute. All facility personnel are certified in safely operating the Chlorine processes performed at this facility.

5. Five year accident history:
The Houma Water Treatment Plant #2 had no reportable accidents in the last five (5) years.

6. The emergency response program:
In the event of an accident or incident involving the facilities chlorine system, the first responder will notify the Terrebonne Parish Consolidated Government (TPCG) Office of Emergency Preparedness and request that they respond to the emergency. The TPCG Office of Emergency Preparedness is the primary response service and will work with Fire and Law Enforcement personnel to minimize effects of a hazardous material (HAZMAT) incident. Depending on the severity of the incident, additional local, state, federal and private resources may be called upon to assist in HAZMAT response.

7. Planned changes to improve safety:
No changes to improve safety have been reviewed at this time.