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The City of Bunkie Water Treatment Plant

Parent Companies:
The City of Bunkie
EPA Facility ID:
100000153852
Other ID:
Facility DUNS:
0
Parent Company DUNS:
0

Location:

Address:
Corner of Rose St. & Mable St.
Bunkie, LA 71322
County:
AVOYELLES
Lat / Long:
30.952, -92.188 (Get map)
Method:
GPS - Unspecified
Description:
Plant Entrance (General)
Horizonal accuracy:
m
Horizontal reference datum:
Source map scale:

Owner/Operator:

Name:
The City of Bunkie
Phone:
(318) 346-7663
Address:
P.O. Box 630
Bunkie, LA 71322
Foreign Address:

Person responsible for RMP implementation:

Name:
Rosie Guillory
Title:
Mayor of Bunkie
Email:

Emergency contact:

Name:
Jeff Basco
Title:
Superintendent
Phone:
(318) 346-7663
24-hour phone:
(318) 346-6678
Ext or PIN:
Email:

Other contacts:

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

Safety:

Local Emergency Planning Committee:
Avoyelles Parish LEPC
Full-Time Equivalent Employees:
4
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:

Chlorine Storage
RMP ID:
20361
CBI claimed:
No
Program Level:
2
NAICS:
Water Supply and Irrigation Systems (22131)
Chemical name
CAS#
Quantity (lbs.)
CBI
Chlorine
7782-50-5
4,000
No
Public OCA Chemical
0
No

RMP Preparer:

Name:
Address:

,
Foreign Address:

Phone:

Latest RMP Submission:

Date:
June 25, 1999
Type:
First-time submission
Reason:
Registered:
No
RMP ID:
14845

Deregistration:

Date:
Effective Date:
Reason:
Source reduced inventory of all regulated substances below TQs
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 Chlorine Storage)
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 Chlorine Storage)
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:
Urban
Passive mitigation
considered:
  • None
not considered:
  • Dikes
  • Enclosures
  • Berms
  • Drains
  • Sumps
Active mitigation
considered:
  • Emergency shutdown
not considered:
  • Sprinkler systems
  • Deluge systems
  • Water curtain
  • Neutralization
  • Excess flow valve
  • Flares
  • Scrubbers

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

Chlorine Storage, Water Supply and Irrigation Systems (22131)
Prevention Program ID:
8168
Safety Review Date
June 1, 1999, since latest RMP submission
PHA Update Date
, since latest RMP submission
Safety Regulations
  • None
Hazards Identified
  • None
Process Controls
  • Vents
  • Manual Shutoffs
  • Automatic Shutoffs
  • Alarms
  • Emergency Air Supply
Mitigation Systems
  • None
Monitoring Systems
  • None
Changes since PHA
  • None
Training Type
  • None
Competency Testing
  • Written Test
  • 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
May 21, 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:
(318) 346-2664
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

Executive Summary

LDEQ Facility ID Number 27697. This Risk Management Plan has been developed for The City of Bunkie's Water Treatment Plant in accordance with 40 CFR part 68. This facility is subject to the requirements of this program due to the usage and storage of chlorine in an amount greater than 2,500 lbs.

The facility is located within the city limits of Bunkie, LA on the corner of Rose St. and Mable St. The area surrounding the plant is residential. The latitude and longitude of the facility was obtained using a hand-held Garmin 75 GPS device with an accuracy of +/- 100 meters. The facility is easily visible on the USGS quadrangle map entitled Bunkie, LA.

The facility treats and supplies water to residential and commercial entities located in Bunkie. This treatment includes the chlorination of the water supply prior to being distributed throughout the city. The rate of chlorine injected into the water is automatically regulated and varies based on the current needs. Once the chlorine is injected into the water it is diluted to an amount which is less than 1% chlorine by weight. Therefore, the process that is subject to the RMP requirements begins with the chlorine supply (2-1 ton cylinders) and ends at the point of injection into the water. The facility purchases the pre-filled chlorine cylinders from Harcros Chemicals, Inc. approximately once every two months. The water plant stores a maximum of two-one ton cylinders (4,000 lbs.) at any one time. The tanks are under a fiberglass cover that is open on all sides. The entire facility is enclosed within a chain-linked fence.

The worst-case release scenario would involve the release of the greatest amount from a single vessel as required by 40 CFR part 68.25 (b)-Determination of worst-case release quantity. This type of release may occur as a result of catastrophic natural or other unforeseen disaster. A release of 2,000 lbs. for a duration of 10 minutes results in a 1.3 mile distance to the t
oxic endpoint. This endpoint is the location where minimal effects of exposure to the toxic substance are likely to occur as determined by the American Industrial Hygiene Association. This distance encompasses the entire city of Bunkie from Hwy 1177 (Shirley Rd.) at Second Union Church to US Hwy 71 at Bayou Huffpower and from E. Oak St. just after Christian Cemetery to the Turner Canal. According to a January 1999 publication of July 1, 1998 population estimates the population of Bunkie is approximately 5,075.

An alternative case or a more likely release of chlorine could occur as a result of a valve, regulator seal, or gasket leak, or from a small amount of liquefied chlorine being trapped between the valve of the cylinder and the equipment line attachment. The plant is equipped with a leak detection system with sensors located near the chlorine cylinders and in the injection room. If a 1 ppm leak is detected an alarm will sound and an automatic call to the fire department and to the employee on duty will be made. The injection system is also equipped with a device that automatically closes the valves at the cylinders if a loss in pressure within the injection line is detected. According to facility personnel, it would take less than 1 minute to respond by closing the flow valve and thus stopping the leak if employees are on-site at the time of the leak detection. If the alarm sounds at a time when no personnel are on-site, it would take approximately 15 minutes for personnel to arrive on-site and stop the leak. Assuming the chlorine flashes to the atmosphere at a rate of 0.5 ft3/min (1.5 lbs. of chlorine) for a maximum of 15 minutes the distance to the toxic endpoint is less than 0.1 mile. The area within 0.1 mile of the facility extends along Rose St. from Knoll Ave. to just before Lexington Ave. and from just before McArthur Dr. to St. John St. Based on a maximum population density of 8,268 p/mi2, the population within 0.1 mile of the facility is a
pproximately 65. This type of release is expected to impact only those persons in the immediate vicinity of the chlorine cylinders. There are no environmental receptors within this area.

The facility has not experienced a release which caused on or off site injury, death or property damage within the past five years.

Facility employees are properly trained in the operating and maintenance procedures. These procedures are kept on-site in the O & M Manuals developed by Domingue-Szabo & Associates, Inc. Records of inspections, testing, and maintenance are also kept on file at the facility. In addition to the leak detection system the process is also equipped with an automatic shut-off system. If a change in pressure within the injection line is detected the system automatically closes the flow valve at the chlorine tank.

Written emergency response procedures are kept on file at the facility. The emergency response procedures describe actions for incidental response for facility personnel in the event of a relatively small leak or release that does not pose an immediate safety or health hazard. If incidental response activities do not halt the release or the release poses an immediate safety or health hazard, specially trained response personnel are contacted to take over response activities. In the event of a chlorine leak or release, employees are instructed to asses the situation and to determine if it is safe to discontinue the leak without the help of emergency responders. If there are any doubts as to the safety of the release, the employees are to initiate the written notification procedures. Details to these procedures are found in Section 7.0 of this manual.

Current safety features at the facility include a leak detection system which activates the phone notification system and an automatic shut-off feature. Inspections of the process and associated equipment are conducted on a regular basis to avoid failure and detect normal wear and tear of
equipment parts. Also, the fiberglass cover protects the chlorine cylinders from the heating effects of being in direct sunlight.