Skip to main content

Search

Overview of Formosa Drainage Study

annika

This supplementary legal document describes recommendations for storm- and waste-water management improvements for the Formosa petrochemical plant in Calhoun County, Texas. The text is a fairly standard drainage assessment. The author describes non-trivial discharge of pollutants out of the plant’s outfalls, which drain into local waters, and the inability of the plant’s systems to prevent flooding from even small storms. For some context on this, it is pretty standard to design a stormwater system to be able to drain the 100-year storm (that is, the storm with a 1% or less chance of occurring in any given year). Formosa’s Texas plant demonstrated the inability to convey even the 2-year storm.

Formosa Drainage Study

annika

Emphases are mine:

Problem areas were identified based on the results from the outfall drainage studies provided by Formosa. Thus, all the results in the OPCC rely on those studies, uncertainities associated with those studies, and the assumptions made for those studies, some of which may or may not be appropriate as I pointed out in Supplement #2 [Page 4]” (3)

“The proposed improvements assume that the conveyance capacity of the problem areas is increased 100%, which would be able to handle twice as much flow that it currently does. The results from the Drainage Study are not conclusive as to what storm event Formosa’s system currently is capable of conveying. The report does mention that the system is not capable of conveying the 2-year storm, and “sometimes” not even the 1-year storm event. (3)

“A 45% contingency is applied to the OPCC due to the uncertainties associated with underground utilities, likelihood of existence of low road crossings and need to replace those, groundwater impacts, other unknowns, and additional costs associated with engineering, etc. 45% is reasonable and in line with industry practices in my experience, especially given the large amount of unknown information available.” (4) 

“My opinion from my July 9, 2018 report that “there have been and are still pellets and/or plastic materials discharges above trace amounts through Outfall 001” is further supported by the deposition testimony of Lisa Vitale, as representative for Freese & Nichols, Inc, that she and her colleagues have seen floating white pellets or small plastic pieces in Lavaca Bay and in the area near outfall 001 as part of her work on the receiving water monitoring program for Formosa’s TPDES permit...Ms. Vitale also testified that she told John Hyak of Formosa about these sightings as well as has sent him water samples with the pellets about five or six times, including at least one time prior to 2010. This, along with the June 2010 EPA Report I cited in my July Report, demonstrates to me that Formosa was aware of problems related to discharges of plastics from its facility since at least in 2010.” (6)

 

pece_annotation_1517348079

Joo23
Annotation of

James Oluwalanke

Dr. Pedro de la Torre

STS 201

01/29/2018

Q1. The report was basically about the how flood has been affecting newark over the past years and the adequate control measures/techniques (laws Movements,permits)

that have been put in place to ensure the prevention of flood in Newark.Agencies that prevent flood have also proven efective and functional over time as in indicated

in the text "Historically, New Jersey has taken a strong role in the development of a rigorous floodplain management program at the State level while supporting those

same efforts at the Federal level with the Federal Emergency Management Agency (FEMA) "(Floodplain Mapping Unit paragraph 1).This report would make resident feel

at ease knowing the problem of flooding is uder control.

Reacting to this report, Although Its is very reassuring knowing all these Agencies,funding,laws, and concerns are in place, I believe extra effort should be put in not only

in Newark but also in other flood affected areas in New Jersey and The United States as a whole because water levels are rising (major concern in coastal areas)and new methods should be put in place to

avoid major casualties.
. .

pece_annotation_1524580725

braeden.perdue
Annotation of

Flooding is a major vulnerability of the Greater Newark area. There are large portions of the area that are extremely vulnerable to flooding, and have suffered substantial damage in the past, and to this day. Notably, the Ironbound and Airport/Port areas of Newark sustained a lot of flooding during the recent hurricanes and major storms.