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November 8, 2023 - Doris Cellarius

U.S. Environmental Protection Agency · from the EPA · 3 pages · 212 KB
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From: Doris Cellarius 
To: Barden, Michele (she/her/hers) 
Cc: kpecci@just-zero.org 
Subject: Comments on Draft NPDES Permit for the Deer Iland WWTP 
Date: Wednesday, November 8, 2023 7:02:49 PM 
Caution: This email originated from outside EPA, please exercise additional caution when
deciding whether to open attachments or click on provided links. 
To: Michele Barden, US EPA Reion 1.
From: Doris Cellarius, Citizen
Regarding the Draft NPDES Permit for the Deer Iland WWTP I urge you to withdraw your proposal to
discontinue the work of Deer Island’s Outfall Monitoring Science Advisory Panel (OMSAP). 
https://www.wbur.org/news/2023/08/21/deer-island-outfall-monitoring-scientific-advisory-panel - 
omsap-epa 
“Nearly 23 years of ambient post-discharge monitoring has found that Massachusetts Bay
water quality standards for the waters around the discharge are being met, and the
discharge has not had an adverse effect on Massachusetts Bay,” said Michelle Barden of EPA
New England in a July 12 public hearing. “EPA is dropping the outfall monitoring Science
Advisory panel, or OMSAP, as a permit requirement.” 
It is hard to believe that monitoring by many distinguished scientists could conclude that “the
discharge has not had an adverse effect on no harm to Massachusetts Bay.” Disbanding a group of
scientists whose expertise is needed now more than ever for protecting public and environmental
health Is dangerous and irresponsible.
Many chemicals of concern (CECs) such as the forever chemicals PFAS are found in domestic sewage
and are not removed by sewage treatment. ”The Deer Island Sewage Treatment Plant has tested its
biosolids for 16 PFAS compounds. For two - PFOS and PFOA, its monitors find an average of 15 parts
per billion combined.” https://www.nhpr.org/2023-04-10/our-sewage-often-becomes-fertilizer - 
problem-is-its-tainted-with-pfas . Sewage treatment has been found to convert some PFAS into
more dangerous forms.
The harm to marine life from CECs and microplastics (which often carry toxics chemicals adsorbed
onto their surfaces) has been reported. Here is a collection of reports that document that
wastewater treatment plants are major sources of CECs in aquatic environments that can
negatively impact aquatic ecosystems . 
“Are Forever Chemicals Harming Ocean Life?” https://therevelator.org/pfas-ocean-wildlife / . 
“To the best of our knowledge PFAAs don’t degrade at all under natural environmental
conditions,” says Robuck. Rather than diluting PFAS to infinitely low concentrations,
oceans carry them to remote areas, like the Arctic and Antarctic . 
Other pollutants that reach the ocean, like DDT and PCBs , will stick to algae and
sediment that eventually fall to the ocean floor. “That is a really important removal
process,” Wagner says. “For PFAS, that process is minor.” Plants, algae and sediment
only remove a small fraction of PFAS from the water column. That leaves more to
accumulate in animals, reaching concentrations thousands of times higher than
surrounding waters. 
And those chemicals could travel right back to humans. Eating a lot of seafood,

especially fish high on the food chain like tuna, would be concerning, she says. 
But it’s not just fish — and humans eating them — that are at risk. A study last year
reported PFAS in seawater and plankton dozens of miles off the Mid-Atlantic coast.
Other research has revealed PFAS compounds — even some that have been previously
phased out of production — in manatees , loggerhead turtles , alligators , seabirds , polar
bears , dolphins and whales .” 
Occurrence and removal of chemicals of emerging concern in wastewater treatment
plants and their impact on receiving water systems. (2020) 
https://www.sciencedirect.com/science/article/pii/S0048969720356515?via%3Dihub 
Abstract - Wastewater treatment plants (WWTPs) are considered the main sources of
chemicals of emerging concern (CECs) in aquatic environments, and can negatively
impact aquatic ecosystems . …………..constant release of potentially persistent and
bioaccumulative chemicals from WWTPs warrants attention in terms of effects on aquatic
organisms. Future studies should therefore focus on long-term investigations of life-long
effects of low-dose exposure to pollutants, which is a more likely situation for aquatic
organisms in recipient waters. 
Ecotoxicological risk assessment of micropollutants from treated urban wastewater
effluents for watercourses at a territorial scale (2020): 
https://doi.org/10.1016/j.ijheh.2019.113437 
“In most cases, urban Wastewater Treatment Plants (WWTP) only partially abate pollutants
occurring in the influent. Treated effluents can thus contain a complex mixture of ecotoxic
pollutants, such as heavy metals, detergents, disinfectants , plasticizers , pharmaceuticals
residues or pesticides.” 
Micropollutants in treated wastewater https://pubmed.ncbi.nlm.nih.gov/31292910 / 
“Compounds such as pharmaceuticals, or personal care products are only partially removed
in wastewater treatment processes. Large number of these compounds and their
degradation products is out of any control.” 
Microplastics in wastewater treatment plants: Detection, occurrence and removal. Water 
Research. 2019; https://europepmc.org/article/MED/30660095 
“Microplastics have aroused increasing concern as they pose threats to aquatic species as
well as human beings. They do not only contribute to accumulation of plastics in the
environment, but due to absorption they can also contribute to spreading of micropollutants
in the environment. Studies indicated that wastewater treatment plants (WWTPs) play an
important role in releasing microplastics to the environment.” 
Global Perspectives on Microplastics 
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JC014719 
Please restore the authority of the Deer Island’s Outfall Monitoring Science Advisory Panel so they

can do the additional studies and would protect marine and human health. 
Thank you,
Doris Cellarius