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Tete Bayou Waste Water Treatment Plant

Parent Companies:
Iberia Parish Sewerage District #1 (IPSD#1)
City of New Iberia (CNI)
EPA Facility ID:
100000157288
Other ID:
Facility DUNS:
0
Parent Company #1 DUNS:
0
Parent Company #2 DUNS:
0

Location:

Address:
200 Parker Street
New Iberia, LA 70563
County:
IBERIA
Lat / Long:
29.991, -91.759 (Get map)
Method:
GPS - Unspecified
Description:
Administrative Building
Horizonal accuracy:
3 m
Horizontal reference datum:
North American Datum of 1983
Source map scale:

Owner/Operator:

Name:
IPSD #1 & CNI
Phone:
(337) 369-2376
Address:
200 Parker Street
New Iberia, LA 70563
Foreign Address:

Person responsible for RMP implementation:

Name:
Vincent S. Palumbo, II
Title:
Director, CNI Wastewater Department

Emergency contact:

Name:
Albert Lewis
Title:
Chief Operator
Phone:
(337) 369-2376
24-hour phone:
(337) 654-0377
Ext or PIN:

Other contacts:

Facility (or company) email:
Facility phone:
(337) 369-2376
Facility (or company) URL:

Safety:

Local Emergency Planning Committee:
Iberia Parish LEPC
Full-Time Equivalent Employees:
5
Covered by OSHA PSM:
Yes
EPCRA section 302:
Yes
CAA Title Air Operating Permit:
No
CAA Permit ID#:
OSHA Star/Merit Ranking
No
Last Safety Inspection Date:
Aug. 12, 2014
Inspecting Agency:
State environmental agency
Using Predictive Filing:
No

Processes:

Chlorine storage & usage
RMP ID:
1000076444
CBI claimed:
No
Program Level:
3
NAICS:
Sewage Treatment Facilities (22132)
Chemical name
CAS#
Quantity (lbs.)
CBI
Chlorine
7782-50-5
4,000
No
Public OCA Chemical
0
No

RMP Preparer:

Name:
Domingue, Szabo, & Associates, Inc. (Contact: Beau Desormeaux)
Address:
102 ASMA Boulevard, Suite 305
Lafayette, LA 70508
Foreign Address:

Phone:
(337) 232-5182

Latest RMP Submission:

Date:
Nov. 21, 2016
Type:
Resubmission
Reason:
5-year update (40 CFR 68.190(b)(1))
Registered:
Yes
RMP ID:
1000061200

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 Chlorine storage & usage)
CBI claimed:
No
Percent weight:
100.0
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 & usage)
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:
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

Chlorine storage & usage, Sewage Treatment Facilities (22132)
Prevention Program ID:
1000064231
Safety Review Date
Oct. 12, 2015, since latest RMP submission
PHA Update Date
Aug. 30, 2016, since latest RMP submission
PHA Techniques
  • What if
  • Checklist
Hazards Identified
  • Toxic release
Process Controls
  • Relief Valves
  • Check Valves
  • Manual Shutoffs
  • Alarms
  • Emergency Air Supply
  • Emergency Power
  • Backup Pump
  • Grounding Equipment
  • Rupture Disks
Mitigation Systems
  • None
Monitoring Systems
  • None
Changes since PHA
  • None
Training Type
  • Classrom
Competency Testing
  • Demonstration
  • Observation
Procedure Review Date
Oct. 27, 2016, since latest RMP submission
Training Review Date
Aug. 27, 2014, since latest RMP submission
Maintenance Review Date
Aug. 30, 2016, since latest RMP submission
Maintenance Inspection Date
Jan. 12, 2015, since latest RMP submission
Equipment Tested
Yes
Management of Change Most Recent Date
None
Management of Change Review Date
Aug. 19, 2011
Pre-startup Review Date
Aug. 19, 2011
Compliance Audit Date
Oct. 12, 2015
Compliance Audit Change Completion Date
Oct. 16, 2015
Incident Investigation Date
None
Incident Invest. Change Completion Date
None
Participation Plan Review Date
Aug. 19, 2011
Hot Work Review Date
Aug. 19, 2011
Contractor Safety Review Date
Oct. 5, 2015, since latest RMP submission
Contractor Safety Eval. Date
Oct. 5, 2015, since latest RMP submission

8. Prevention Program level 2

No Prevention Program level 2

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:
Oct. 5, 2015
Local Response Agency:
Local Response Agency Phone:
(337) 365-5872
Subject To - OSHA EAP:
No
Subject To - OSHA HAZWOPER:
Yes
Subject To - CWA:
No
Subject To - RCRA:
No
Subject To - OPA:
No
Subject To - State EPCRA:
Yes
Subject To - Other:

Executive Summary

1.0 Executive Summary



This Risk Management Plan has been developed by Domingue, Szabo & Associates, Inc. for the Tete Bayou Waste Water Treatment Plant (Plant #3), jointly owned by The City of New Iberia and Iberia Parish Sewerage District #1, in accordance with 40 CFR part 68. This facility is subject to requirements of this program due to the usage and storage of chlorine in an amount greater than 2,500 lbs. The facility does not maintain TQs of SO2 which trigger applicablity for SO2.



The facility is located outside the city limits of New Iberia, LA at the end of Parker St., off of LA Highway 87. The area surrounding the facility consists of agricultural fields and residential subdivisions to the north and south of the plant. The latitude and longitude of the facility were obtained from GPS coordinates.



Water treatment includes the chlorination of the treated water prior to being disposed of into the Bayou Teche. Chlorine is mixed with water at a rate that is flow proportional. Once the chlorine is injected into the water it is diluted to an amount, which is less than 1% chlorine, by weight. The chlorine-water mixture is then routed to the contact chamber where the wastewater is disinfected. The part of this process that is subject to the RMP requirements begins with the chlorine supply (2-1 ton containers) and ends at the point where it is injected into the water. The facility uses approximately one cylinder of chlorine every month. The wastewater plant stores a maximum of two-one ton containers (4,000 lbs.) of chlorine at any one time.



The worst-case release scenario chlorine involves 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 toxic endpoint for chlorine.
This endpoint, developed by the American Industrial Hygiene association, is the location where minimal effects of exposure to the toxic substance are likely to occur. This distance encompasses mostly farmland and a few residential subdivisions, from LA Hwy 182 at Nelson Canal Road to Tete Bayou just before Crochet Rd. and from Neco Town Road at the power station to just before LA Hwy 86. Using MARPLOT v5.0.3 software developed by the USEPA and NOAA, the population residing withing an area encompassing a circle with a 1.3 mile radius(worst-case release circle) is 3,286 people. Refer to Section 5.0 for the vicinity map, which depicts the worst-case release circle and for details of public and environmental receptors.



An alternative case or a more likely release of chlorine could occur as the result of a cracked or split hose, sudden hose un-coupling, seal failures, over-pressurization, holes formed in ton containers as a result of punctures or corrosion, valve failures, regulator seal, or gasket leak. The plant is equipped with a leak detection system that has sensors located near the cylinders and the plant employees are on-site 24 hours per day. If 1-ppm leak of CL2 is detected an alarm will sound and according to facility personnel, it would take less than 1 minute for on-site personnel to respond by closing the flow valve and thus stopping the leak. Assuming the chlorine flashes to the atmosphere at a rate of 410 lbs/min for a maximum of 5 minutes (2,050 lbs. of chlorine) the distance to the toxic endpoint is 0.6 miles. The area within 0.4 miles of the facility encompasses mostly farmland and a few residents located to the south and west of the facility. Using MARPLOT v5.0.3 software developed by the USEPA and NOAA, the population residing withing an area encompassing a circle with a 0.6 mile radius(worst-case release circle) is 0 people, however given local knowledge of the area we suspect a population of 25. Refer to Section 5.0 for the vicinity map,
which depicts the worst-case release circle and for details of public and environmental receptors.



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 within the O & M Manuals. Records of inspections, testing, and maintenance are also kept on file at the facility.



Written emergency response procedures have been developed and are kept on file at the facility. Emergency response procedures within this manual 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 assess 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 the manual.



Current safety features installed at the facility include the leak detection system, and 24 hr/day on-site personnel. 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.



Facilities with worst-case release scenarios that affect public or environmental receptors and utilize private contractors to operate the facility are subject to OSHA's process safety management program, and therefore are required to develop a Program 3 RMP. The Tete Bayou Waste Water Treatment Plant:



* Is a publically owned facili
ty, which contracts out a private company to operate its wastewater treatment facility

* Contains public receptors within its worst-case release circle



Therefore, the information contained in this manual shall serve to comply with the requirements of a Program 3 Risk Management Plan.