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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)

 

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rumil.rana

In terms of precaution regarding air pollution, the article talks about making good choices of transportation which means to walk or bike or take public transportation whenever feasible; choosing cars that have better mileage per gallon or electric cars; buying food locally grown rather than food from other places in order to reduce air pollution. 

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Joo23

Air polluion involves the introduction of harmful substance into the air.These harmful substances

involves various harmful gases let out by machines, aircrafts and so on.

These pllutions could lead to serious health injuries which could lead to poverty if

too much money is spent in the hospital as treatment could be expensive.

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lynn316

A sacrifice zone or sacrifice area (often termed a national sacrifice zone or national sacrifice area) is a geographic area that has been permanently impaired by environmental damage or economic disinvestment. These zones are most commonly found in low-income and minority communities. Children that grow up near these areas are more likely to have asthma and other lung issuesd

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neemapatel128

Although reducing air pollution is very hard nowadays, however people can take precaution especailly in the way in which they use means of transportation in their daily lives. Eliminating air pollution is not possible but their are many ways in which we can reduce it. First off by choosing a better transportation method everyday, instead taking public transport, or driving your car when not needed. Suppose you want to make a quick food run to a place nearby, why not walk there or maybe even ride your bike, saving fuel and the emissions that would be emitted from them when you use those transportations. It is small steps that each person can take in their daily lives that would help reduce pollution overtime. Also getting out there and supporting causes that push for cleaner air, if each person played their part in their own communities instead of leaving it up to others, we would definitley elimiante a lot of waster.