Daily Air Emissions Report
New-Indy is continuously monitoring hydrogen sulfide in various locations both at the Catawba Mill and in surrounding neighborhoods. The report below shows hydrogen sulfide levels as reported by New Indy. The report is updated daily.
From May 13 – June 29, 2021, the Environmental Protection Agency (EPA) reported the results of daily hydrogen sulfide samplings from 10 different locations in York and Lancaster Counties, South Carolina, and Union County, North Carolina. Those reports can be accessed via the Report Date dropdown menu on the top right-hand side of the map.**
Thereafter, New-Indy and the South Carolina Department of Health and Environmental Control (SCDHEC) each began collecting data from their own monitoring stations surrounding the New-Indy Catawba mill. New-Indy placed five of its monitoring stations in close proximity to terminated EPA monitors and SCDHEC installed three monitoring stations of its own. In the interactive map above, you can see the location of each New-Indy and SCDHEC monitoring station and their corresponding data. The full EPA and New-Indy daily reports can be accessed from the Daily Reports below. Full SCDHEC reports beginning on June 29, 2021, can be found HERE.
**Note: DHEC’s Catawba Express monitor failed on Oct. 14, 2021 and the monitor from DHEC’s Catawba River site has been used to replace the Catawba Express monitor since Oct. 18, 2021.
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New-Indy Catawba Enters Consent Decree with U.S. Environmental Protection Agency
Agreement Details Mill Improvements, Resolves Clean Air Act Issues
December 29, 2021
Catawba, S.C. – New-Indy Catawba and the U.S. Environmental Protection Agency (EPA) entered a consent decree today that was filed in U.S. District Court in Rock Hill, S.C. The agreement resolves issues related to the Clean Air Act filed by the EPA and declares that New-Indy has taken many corrective actions since an initial EPA order in May 2021.
“New-Indy worked with the EPA and the U.S. Department of Justice to resolve this matter and will comply fully with the agreement,” said Tony Hobson, the mill’s manager. “The mill has cooperated with regulators throughout the process, implemented a long list of improvements, and is grateful for this positive and constructive outcome.”
As the decree states, the mill’s fence-line monitors have not detected any hydrogen sulfide exceedances of the fence-line concentration limits since June 2021, except for a brief period in early September as the facility continued to adjust its production process. The situation was quickly corrected. New-Indy publishes emissions findings from fence-line and off-site monitors every day on this website. The off-site monitors have never exceeded concentration limits and readings have been negligible or zero for months.
As part of the consent decree with the EPA, New-Indy will pay a fine of $1.1 Million and continue to improve its operations. As part of the plan, New-Indy will operate its steam stripper when unbleached pulp is being processed, install a black-liquor containment system, install and maintain a carbon filtration system on its post-aeration tank, continue to monitor for hydrogen sulfide and improve its wastewater treatment system.
A steam stripper assists in the cleaning of volatile organic compounds from plant wastewater streams and a black liquor containment system captures mill process liquid byproduct to prevent overflow into the wastewater treatment system.
The next step is for a federal judge to give final approval to the decree after a 30-day comment period.
Weekly Update for December 11 – 17, 2021
Weekly Update for December 4 – 10, 2021
Weekly Update for November 27 – December 3, 2021
Weekly Update for November 20 – 26, 2021
Weekly Update for November 13 – 19, 2021
Weekly Update for November 6 – 12, 2021
Weekly Update for October 30 – November 5, 2021
Weekly Update for October 23 – 29, 2021
New-Indy Catawba LLC frequently asked questions.
1. What do the daily graphs from air monitoring stations show?
The New-Indy air monitors are stationary instruments that provide data that is averaged over 30-minute periods of time. The onsite instruments measure hydrogen sulfide (H2S) down to four-tenths parts per billion (0.4 ppb). The offsite instruments measure hydrogen sulfide (H2S) down to two-tenths parts per billion (0.20 ppb). The purpose of the stationary monitors is to provide quantitative information regarding H2S concentrations at New-Indy and in the community. The red line in the graphs is set at 70 ppb, which is the 14-day Minimum Risk Level (MRL) for H2S exposure developed by the Agency for Toxic Substances and Disease Registry (ATSDR). An MRL is defined as an estimate of daily exposure to a substance (H2S) that poses a minimal risk of adverse effects to humans over a specified duration of exposure (14 days).
2. Is the community’s drinking water impacted from the New-Indy wastewater discharge?
No. The South Carolina Department of Health and Environmental Control (SC DHEC) routinely monitors public drinking water as well as the water quality of the rivers in South Carolina. The intake for drinking water systems supplying the neighborhoods in the area are UPSTREAM from the New-Indy discharge. The nearest downstream intake is 9 miles downriver. No issues related to New-Indy have been identified that are affecting drinking water quality. SC DHEC, in coordination with the Catawba Riverkeeper, conducted a special study on the river, looking at upstream and downstream locations relevant to New-Indy. The study found there were no significant impacts to the Catawba River from the New-Indy wastewater discharge. The report can be found at https://scdhec.gov/sites/default/files/media/document/CatawbaRiverStudy_Final.pdf.
3. What is the Community Engagement Group and what is its purpose?
The Community Engagement Group (CEG) provides a way for New-Indy and its neighbors to communicate directly, to form relationships with each other, and to work together to identify concerns and develop solutions. New-Indy Catawba created the CEG to improve dialogue with residents in the communities surrounding the facility and to build respect, trust and confidence with local citizens. We hope that this will help identify and resolve any concerns. New-Indy Catawba remains firmly committed to operating in a safe and sustainable manner, which will have a positive impact on the local community and South Carolina.
4. What does the foul condensate steam stripper do and why can’t New-Indy just use it to reduce odor?
The stripper treats foul condensate (foul in this instance denoting “dirty” condensate discharge) generated during the manufacture of pulp to strip hydrogen sulfide (H2S) and other non-condensable gases (NCG’s) from such condensate. The stripped H2S and NCG’s are then burned in one of the combustion boilers at the mill. At present, the stripper is not sized to treat all foul condensate generated by the mill. New-Indy is investigating several modifications that it may make to the stripper and related equipment to increase the volume of foul condensate that the stripper can process.
5. Why is New-Indy removing fiber from the aeration stabilization pond (ASB) and how much are they going to remove? What will keep the fiber from building up again and where is the material being discarded?
The layer of fiber on the ASB was the result of initial startup operations following the conversion from bleached paper to unbleached containerboard. The fiber interfered with the proper operation of the ASB and made it difficult for mill personnel to conduct preventive maintenance and repairs. As a result, several aerators in the ASB became inoperable. The situation was exacerbated by the inclement weather in January and February which prevented timely access to the ASB for heavy equipment contractors to begin the solids removal process. Beginning on March 1, 2021, New-Indy began removing fiber from the surface of the ASB. This effort has continued using various methods, including using a barge to dredge and push fiber toward the edge of the ASB. Fiber that is removed is hauled to the No. 4 sludge pond where it is processed with other similar waste. These continuing remedial measures to remove fiber have allowed personnel to reach the aerators, conduct maintenance and repairs on those aerators and return them to service, which has improved performance of the ASB and reduced related air emissions and odors.
6. What is a stack test? Was it performed and what are the results of the tests?
A stack test, also referred to in EPA regulations as a performance or source test, measures the amount of a specific regulated pollutant, pollutants, or surrogates being emitted from an air emissions source, such as a stack or vent. Testing is required by a facility’s Title V Air Permit on a periodic basis. Testing the air emissions from these devices (stacks/vents) requires highly sophisticated protocols and techniques to ensure that the air quality is accurately measured and characterized. All of the stack tests required by EPA and SC DHEC have been performed, and the sampling and testing results are being analyzed to ensure data quality. This data has been submitted to SC DHEC for review and evaluation. Once approved by SC DHEC, the data will be used to generate air dispersion models to evaluate any potential offsite impact from New-Indy’s emissions.
7. Why are there fewer monitoring stations now that New-Indy is doing the monitoring?
A large amount of data has been generated by the EPA monitors, which has been helpful in pin-pointing locations where H2S levels might be elevated. As such, SC DHEC has concurred in the placement of New-Indy monitors in the areas most likely to experience elevated levels of H2S and at locations where permission was granted to install a monitor.
8. Why was New-Indy allowed to start up the plant without a foul condensate stripper?
The option to discharge the foul condensate to the wastewater treatment system instead of through the steam stripper is allowed under the federal air regulations (40 CFR Subpart S). SC DHEC approved the hard piping of the foul condensate in a revised construction permit issued on May 13, 2020. When the odor issue arose, New-Indy voluntarily decided (with SC DHEC approval) to restart the stripper on May 3, 2021.
Hydrogen Sulfide Q&A with Dr. Christopher Teaf
President & Director of Toxicology, Hazardous Substance & Waste Management Research, Inc.
1. What is hydrogen sulfide? Does hydrogen sulfide exist in nature or is it a “man-made” chemical? What are some possible sources of hydrogen sulfide?
Hydrogen sulfide (H2S) occurs naturally. H2S and related reduced sulfides, are produced when bacteria break down organic material such as plant or animal tissues where oxygen is limited (e.g., swamps, wetlands). It is not an unusual substance, and occurs in nature, as well as from some industrial sources. The World Health Organization (WHO) estimates that 75 to 250 million tons per year of H2S are released from all land and ocean sources, including natural sources, industrial petroleum processing, geothermal energy production, tanneries, and paper mills of various types.
2. How easy is it to smell hydrogen sulfide, compared to other odors? Why do people refer to “rotten eggs” as the odor associated with hydrogen sulfide?
H2S is easily detected by smell compared to other odors. The fact that you are smelling an odor does not mean that it is causing you harm. While the reported detection threshold for H2S in air for most people is in the range of 1 to 10 parts per billion (ppb), a very wide range from 0.5 to 300 ppb often is reported. Rotten eggs produce hydrogen sulfide and other reduced sulfur compounds when they decompose.
3. Can you be harmed by H2S if you cannot smell it? Is it similar to carbon monoxide?
H2S is not similar to carbon monoxide, which is a completely odorless gas. Generally, it is not possible to be harmed by H2S if you do not smell it. Even when the odor is detectable, in situations where people can move around freely, H2S is almost never a health issue. In other words, even if you do smell H2S, it does not mean that what you are smelling is harmful. Most of the time it is not.
4. How is hydrogen sulfide created? Is hydrogen sulfide always a gas? Does hydrogen sulfide exist in water? Should I be concerned that hydrogen sulfide may occur in household water?
H2S is a gas under normal circumstances. It dissolves in water, but its vapor pressure causes it to leave water quickly. There are no federal or state drinking water standards for H2S, and it is of health interest only in rare situations. If H2S taste or odor is present in water supplies, it is treated by filtration or oxidation. Occasionally, H2S is produced in homes by sulfate bacteria in electric hot water heaters. H2S is also formed as a natural product in our bodies, for example “morning breath” and intestinal gas.
5. Does hydrogen sulfide have any beneficial uses?
H2S occurs naturally, is used industrially to produce sulfuric acid and elemental sulfur and can be used to produce “heavy water” for nuclear plants. It has protective and beneficial characteristics in Alzheimer’s models and some other studies.
6. At what level is hydrogen sulfide dangerous to humans and pets? Does prolonged exposure to low H2S concentrations cause health issues for humans and pets? Is intermittent or occasional exposure to small to intermediate levels of hydrogen sulfide unhealthy? Are the elderly, the young and people with compromised immune systems more likely to suffer adverse health effects from either prolonged or intermittent exposure to hydrogen sulfide?
H2S typically is addressed as an odor, not a health concern. The Agency for Toxic Substances and Disease Registry (ATSDR) set a Minimal Risk Level (MRL) for H2S at 70 ppb to protect sensitive portions of our population, such as the elderly or young. H2S air levels below 70 ppb may be detectable by smell, but are not harmful to people or pets, even if exposures are common, or if brief, infrequent exceedances occur. The 70 ppb MRL does not mean that levels above 70 ppb necessarily are harmful. Rather, it is a conservative guideline for sensitive members of the population.
7. What are the health effects associated with hydrogen sulfide exposure? Do the health effects end after exposure ceases?
Exposure to concentrations of hydrogen sulfide greater than the MRL of 70 ppb in air for periods of time exceeding several weeks may cause transient and mild irritation of eyes, nose, and throat, which are reversible when exposure ceases. Individuals who are unable to smell H2S do not experience such responses.
Short-term exposures to H2S at concentrations of parts per million or higher (1 ppm = 1,000 ppb) have been reported to occasionally cause nausea, headaches, disturbed equilibrium, neurobehavioral changes, olfactory paralysis, loss of consciousness, and tremors, depending on the levels. While some persistent effects have been reported in workers exposed to H2S at high levels for long periods, effects from environmental exposures are reversible.
8. What should I do if I smell hydrogen sulfide inside my home? Outside my home?
If you are outdoors when you smell H2S, you may wish to go indoors temporarily to avoid the smell. Because it is a relatively common airborne substance, and often is associated with sewage treatment plants, sewage lift stations, decomposing vegetable matter, landfills and some industrial activities, it often is detectable near these facilities. If smells are localized indoors, ventilating the home typically is beneficial, assuming that there is not a continuing source in the home itself (e.g., hot water heater or water supply).
9. What is the most effective way to remove H2S from the home if it is entering from the outside?
Air filtration devices are available for residential applications and would be expected to help dissipate H2S odors, both existing and new.
10. Does the federal government regulate hydrogen sulfide? Is hydrogen sulfide a pollutant under federal law? Other than workplace limits imposed by the Occupational Safety and Health Administration (OSHA) has the federal government-imposed exposure limits for hydrogen sulfide? What are the exposure guidelines for hydrogen sulfide?
The workplace OSHA concentration for H2S is 20,000 ppb (20 ppm), based on a 15-minute time-weighted average. Other regulatory agencies have developed guidelines for H2S, including in occupational and environmental circumstances. There are no federal standards for air (other than for petroleum refining facilities), but protective guidelines have been recommended at the MRL of 70 ppb, which is the safe level for exposures of less than or equal to 14 days.
11. Is H2S considered a toxic substance under federal law?
H2S is not regulated by federal law according to air concentrations. There are Clean Air Act requirements related to H2S release prevention and planning. Therefore, H2S release is regulated for reporting and planning purposes beyond threshold quantities, but not by air concentration. There are also federal Permissible Exposure Limits (PELs) that apply in the workplace, but not outdoor air.
12. Is hydrogen sulfide likely to affect me or my family? If I smell “rotten eggs” am I in danger? Do I need to wear personal protective equipment if I encounter hydrogen sulfide?
In situations where people can move around freely, H2S is almost never a health issue, though the odor of H2S is easily detected. Protective equipment is not necessary except for some enclosed industrial operations.
13. Each year, how many people in the United States die from exposure to hydrogen sulfide? How many people in the U.S. each year suffer adverse health effects from exposure to hydrogen sulfide? Where do those situations typically happen?
The U.S. Bureau of Labor Statistics estimated fewer than 50 fatalities during the period from 2011 to 2017, approximately 8 per year. The cases typically are attributed to industrial accidents or entry into confined spaces containing high levels of H2S.
14. What other resources are available if I would like additional information on hydrogen sulfide?
There are many sources of information regarding H2S, ranging from simple and straightforward to highly detailed and complex. These include:
ATSDR (Agency for Toxic Substances & Disease Registry). 2016a. Toxicological Profile for Hydrogen Sulfide and Carbonyl Sulfide. U.S. Department of Health and Human Services. Atlanta, GA.
ATSDR (Agency for Toxic Substances & Disease Registry). 2016b. Tox Guide for Hydrogen Sulfide (H2S). U.S. Department of Health and Human Services, Public Health Service. Atlanta, GA.
ATSDR (Agency for Toxic Substances & Disease Registry). 2016c. Public health Statement: Hydrogen Sulfide (H2S). U.S. Department of Health and Human Services, Public Health Service. Atlanta, GA.
California ARB (California Air Resources Board). 2021. Hydrogen Sulfide & Health.
MN DOH (Minnesota Department of Health). 2019. Hydrogen Sulfide and Sulfur Bacteria in Well Water: Well Management Program. August 2019.
Wastewater Treatment System Q&A with Mike Foster
Principal Consultant, Environmental Business Specialists
1. Why does New-Indy Catawba (NICB) have such a large wastewater treatment system?
The production of pulp and paper is a water intensive process. Converting wood into paper requires a combination of physical, chemical, and thermal steps that produce fiber stock, recoverable energy, and process water that contains impurities that must be removed before it can be discharged. Fully integrated pulp and paper mills, such as NICB, employ systems that treat as much wastewater each day as a medium-sized city of over 100,000 people.
2. Can NICB recycle the water back to the mill and/or recover the impurities to use elsewhere?
The U.S. pulp and paper industry is a highly sustainable industry and has made great environmental strides over the past 20-30 years in terms of reduction in amount of water consumed per ton of paper produced, quantity of permitted components discharged, such as biochemical oxygen demand (BOD) and total suspended solids (TSS), and air emissions of hazardous air pollutants (HAPs) from wastewater collection and treatment systems. Most mills recycle significant quantities of process water, recover/refine chemicals from the wood (turpentine, soaps, and tall oil), and produce steam and electricity from such wood lignin burned in the mill’s recovery boilers.
The reality is that water can be recycled only to a certain point, after which it must be purged, collected, treated, and discharged to a receiving stream. No recovery or refining process is 100% efficient. There are practical limitations in recovering or removing all of byproducts and impurities that leave the mill, which necessitates the existence and operation of a wastewater treatment system that employs biological and physical treatment technologies.
3. What is sludge?
Sludge is the term for the biological solids generated when microbes (bacteria) degrade organic matter. As the microbes convert the organic material (BOD) into carbon dioxide and energy, they reproduce, creating additional bacterial cells. When all, or most, of the BOD is converted, the bacteria run out of “food” and the solids settle to the bottom of the ASB or #1 Holding Pond creating a layer of solids referred to as sludge. It is important that these solid particles settle somewhere in the system to avoid being discharged.
4. Can sludge be used as fertilizer?
The short answer is “maybe”. The limitations are the variability of the nutrient content in the sludge, permitting considerations, and the costs of handling, hauling, and application. NICB is continually exploring beneficial reuse opportunities for the various solid byproducts produced in their process.
5. How does NICB treat their wastewater?
The NICB wastewater is treated in a system referred to as an Aerated Stabilization Basin (ASB) and is the most common type of wastewater treatment system used by pulp and paper mills in the Southeastern United States. The term ASB generally is assigned to both the specific basin that contains the bulk of the aeration and the entire system including the settling and holding ponds. There are five steps involved in the NICB treatment process:
- Collection and transfer of the wastewater from the many locations throughout the mill to the wastewater treatment system via a network of sumps, pumps, and lift stations.
- Primary treatment – Settling of insoluble material in a primary clarifier, which removes fugitive solids such as wood fiber, boiler ash, lime mud, and general silt and sand.
- Reduction of BOD and other specific compounds that can be detrimental to aquatic life in the Catawba River. This occurs primarily in the ASB. The soluble BOD is converted to additional bacteria (biomass) resulting in an effluent that contains an acceptable BOD concentration under the National Pollutant Discharge Elimination System (NPDES) permit and the newly formed biomass, which must be removed by settling before discharge.
- Settling of solids created by the conversion of soluble organic matter (BOD) into additional bacteria (bugs) to avoid discharging solids to the river. This occurs in the #1 Holding Pond, which also serves as an equalization pond to hold water and discharge in a manner that ensures permit compliance and provides an additional layer of protection to the Catawba River.
- Discharge to receiving stream is monitored for numerous parameters that are listed in the NICB’s NPDES permit.
6. What is BOD?
BOD is the abbreviation for biochemical oxygen demand and is a measure of the biodegradable organic material that is in the wastewater. The bacteria in a wastewater treatment system function identically to the naturally occurring bacteria in a stream, lake, or river. The bacteria utilize available dissolved oxygen (DO) to metabolize organic matter to create additional bacteria and carbon dioxide. As related to humans, the way we measure the “strength” of our food is in calories, which is analogous to BOD for the bacteria. In both cases, the organic material is aerobically metabolized to produce energy, new cells, and carbon dioxide.
7. Why should BOD be removed before wastewater is discharged into the river?
Removal of BOD prior to discharge is critical because a “receiving stream”, i.e., a river or lake, must maintain adequate dissolved oxygen (DO) levels to support desirable aquatic life, such as game fish like bream, crappie, bass, and trout. All streams have a natural ability to handle a certain amount of organic loading from agricultural, municipal, and industrial discharges. This is called the assimilative capacity of the stream. If the total amount of BOD or other contaminants does not exceed this capacity, the receiving stream can naturally metabolize the organic material, thus maintaining a healthy environment for the aquatic life. If the assimilative capacity is consistently or excessively exceeded, the bacteria in the stream will consume more oxygen than is naturally replenished resulting in stream oxygen concentrations dipping below necessary levels to sustain aquatic organisms such as fish.
8. What is the relationship between the New-Indy ASB and hydrogen sulfide emissions?
No manufacturing facility, including NICB, has any incentive to create or release waste material that must be treated or hauled away for disposal. The components in a wastewater stream are comprised of impurities that adversely impact the quality of the paper produced and some desirable materials that the mill would prefer to capture in the process. Therefore, NICB has an incentive to minimize the loading to the ASB, which directly reduces the potential for odor formation.
When the bacteria utilize oxygen to degrade the BOD, the main byproduct is odorless carbon dioxide (CO2). However, ASBs are large non-homogenous ponds with numerous competing biological reactions occurring simultaneously. One of those competing reactions is carried out by a group of bacteria known as sulfate reducers (SRBs), which also can degrade BOD. Instead of using oxygen, SRBs use sulfate (SO4) as their “oxygen” source. The resulting byproduct is odorous H2S instead of CO2. Since sulfate is a very common, naturally occurring compound, H2S formation can occur in virtually any wastewater treatment system, as well as lift stations, sewer lines, and agricultural ponds.
Formation of H2S and other sulfides is inevitable and even desirable in an ASB, because it is the byproduct of anaerobic sludge digestion at the bottom of the basins. This reduces the volume of solids produced and is an essential component of the technology. The sulfides formed in this process are re-absorbed in the water layer of the ASB and do not leave in the air in measurable amounts. The problem occurs when the hydrogen sulfide formation rate exceeds the assimilative capacity of the water layer, resulting in H2S emissions to the atmosphere. The situation is aggravated or complicated by the dynamic nature of the treatment system and weather conditions. Therefore, New-Indy has instituted a variety of proactive and reactive steps to minimize the formation and release of odorous compounds from its wastewater treatment system. Many of these items are listed and briefly discussed below.
Note: Hydrogen sulfide (H2S) and its similarly odiferous cousins, such as methyl mercaptan and dimethyl sulfide, have many potential sources beyond ASBs and sewage treatment. In fact, mercaptans such as dimethyl sulfide are added to odorless natural gas for safety reasons. Hydrogen sulfide is commonly an issue for municipal wastewater collection system due to low flow, anaerobic conditions in collection systems and lift stations. Lastly, marsh gas, also known as swamp gas, is a mixture of methane, hydrogen sulfide, carbon dioxide, and trace phosphine produced naturally within some marshes, swamps, and bogs.
9. What are some tools and strategies for monitoring, controlling, and minimizing H2S formation and emissions in a wastewater treatment system?
As discussed previously, minimizing mill losses and process upsets is the first place to start, and best management practices in pulp and paper mills generally include continually investigating and evaluating potential improvements from this perspective. This answer will focus on the wastewater treatment system, which is tasked with handling what leaves the mill and protecting the environment.
Optimizing the aerobic treatment component of the ASB is priority one. This includes:
- Maintaining sufficient aeration in the aerated portion of the ASB to ensure that undesirable H2S formation in the ASB is minimized1,
- Installing a unique biosensor probe technology to provide real-time data regarding the health and performance of the ASB1,
- Strategically dredging solids1 to maintain adequate hydraulic retention time for treatment and prevent stagnant areas that can produce H2S, and
- Evaluating supplemental nutrient and/or bacteria addition2 to further optimize BOD treatment and reduce the potential for H2S formation in the #1 Holding Pond.
In addition to the aeration basin efforts above, the mill is taking or evaluating steps to eliminate H2S emissions from the mill site. These include:
- Installation of additional aerators in the #1 Holding Pond to reduce stagnant locations and maintain an aerobic environment prior to discharge2,
- Using chemical additives (calcium nitrate, hydrogen peroxide, and ferric sulfate) individually or in combination to prevent/eliminate H2S in the #1 Holding Pond1, and
- Evaluating the applicability of in-pond monitors to better apply the above-mentioned chemical to prevent and/or remediate H2S formation.3
1 Currently in use
2 Evaluation or installation planned
3 Under consideration
2021 Mill Operations Timeline
Prior to 2020, the New-Indy Catawba mill produced mostly white paper, which was used by customers to print magazines, catalogs and similar materials. Last year, New-Indy converted portions of the mill to manufacture unbleached containerboard, which is used by customers to produce various packaging products. The mill was completely offline from May to September 2020 during the conversion process. The first stage of restarting production began in December and by February 1, 2021, the mill had restored operations. On February 8, 2021, New-Indy Catawba LLC sent DHEC a letter notifying it that New-Indy Catawba began operations of all equipment except the No. 2 Paper Machine within 15 days prior to that letter.
Week of: February 1
Week of: March 1
- Full mill odor survey conducted by external consultant
Week of: March 8
Week of: April 5
Week of: April 19
Week of: May 3
- Brought foul condensate steam stripper back into service
- Optimized calcium nitrate supplementation (split feed)
- Enhanced surface solids removal in ASB
Week of: May 10
Week of: May 24
Week of: June 7
Week of: June 14
Week of: June 21
Week of: June 28
- Continued surface solids removal and aerator repairs
Weeks of: July 12 & July 19
Week of: August 9
Week of: September 13
Week of: September 27
- CEG meeting with presentations on air dispersion modeling and community outreach
Week of: October 18
Week of: October 25
- Initiated operation of a hydrogen peroxide diffuser running the length of #1 Holding Pond
- CEG meeting with presentation on New-Indy’s Voluntary Cleanup Contract (VCC) and the environmental assessment New-Indy Catawba made just prior to its acquisition of the Catawba mill
Week of: November 15
Week of: December 13
|ASB||Aeration Stabilization Basin||Biological stabilization of wastewater organics|
|CEG||Community Engagement Group||Build trust and confidence with local citizens and other stakeholders and establish an effective and regular dialogue with the local community|
|EPA||Environmental Protection Agency||US environmental agency|
|EQ Basin||Equalization Stabilization Basin||Used as a means of buffering or equalizing the characteristics of wastewater prior to entering the wastewater treatment system|
|H2S||Hydrogen Sulfide||Chemical targeted for ambient air monitoring|
|PAB||Post Aeration Basin||Final aeration polishing basin prior to discharge to Catawba River|
|PM3||Paper Machine 3||Production equipment where linerboard is made from pulp slurry|
|SCDHEC||South Carolina Department of Health & Environmental Control||South Carolina state environmental agency|
New-Indy Catawba Community Engagement Group
The New-Indy Catawba Community Engagement Group (CEG) was formed in June 2021 and is comprised of individuals who live in communities surrounding the mill. Membership is distributed among local environmental leaders, members of surrounding businesses, concerned local citizens and New-Indy employees.
The CEG held its first meeting on June 28, 2021 and convenes regularly with the following objectives in mind:
- To establish an effective and regular dialogue between the local community surrounding the mill and New-Indy Catawba management.
- To build trust and confidence with local citizens and other stakeholders that New-Indy Catawba is firmly committed to operating in a safe and sustainable manner, which will have a positive impact on the local community.
CEG Meeting Recaps
JUNE 28: The first CEG meeting was introductory in nature and the group discussed many of the issues raised in the community surrounding the mill at that time. Members offered ideas to New-Indy management on the best ways to communicate clear and reliable information to local citizens. A key goal that the CEG and New-Indy management are working toward is establishing a structured way for members of the community to report important information related to their concerns directly to New-Indy management for further examination.
The CEG was updated on the ongoing DHEC and EPA orders and briefed by New-Indy management on the work that was being done to comply.
AUGUST 9: New-Indy Catawba offered a tour of the mill to the CEG. Following the tour, the group discussed ongoing operations with New-Indy management. Several new CEG members were in attendance and introduced themselves. Representatives from SCDHEC were in attendance and addressed questions from the CEG. New-Indy also provided an update during the meeting on the company’s plans to update its website with information that addresses concerns within the community, educational resources on the paper-making process and daily air quality monitoring reports.
SEPTEMBER 13: New-Indy Catawba representatives offered mill site updates, displayed recent website modifications and explained plans to further the company’s communications efforts. A toxicologist was in attendance to explain global H2S sources, H2S characteristics and toxicology, and regulatory challenges and guidelines. A wastewater treatment expert conducted a presentation for the CEG regarding pulp and paper wastewater treatment, biochemical oxygen demand (BOD) and how H2S is maintained in the paper-making environment. The toxicologist and wastewater treatment expert also answered questions from CEG members following their presentations.
OCTOBER 18: Similar to the September CEG meeting, the session began with mill site updates and a review of recent website adjustments, highlighted by a new infographic map and a newsletter. An air dispersion modeling expert provided an explanation on how modeling works, what the model inputs are, evaluating model results, and how those factors apply to the New-Indy air dispersion model. A community outreach consultant described the process of responding to citizen odor complaints, how complaint data is gathered and logged, and how the collected information is used.
NOVEMBER 15: The session commenced with an update on mill operations that included solids removal continuing in the ASB and EQ Basin, as well as a survey conducted in the ASB to scan the basin floor to locate subsurface solids and relocate aerators accordingly. Stack testing emissions results were within compliance measures and New-Indy is exploring ways to optimize performance of the condensate steam stripper. Recent website alterations include a new color scheme, weekly posts to convey site updates and a social media feed to provide real-time updates to the community. An environmental consultant presented on New-Indy’s Voluntary Cleanup Contract (VCC) and the environmental assessment New-Indy Catawba made just prior to its acquisition of the Catawba mill. The consultant also explained the VCC program and how New-Indy has been working through the VCC process.
DECEMBER 13: The group meeting commenced with a new member introduction and a site update form the mill manager. All systems at the mill are in good health and solids removal from the ASB and EQ Basin are ongoing daily. The mill is also exploring the return of the combustion boiler dry ash system back to service, which would assist in a large portion of the dry ash removal. Following a communication update, the group departed for a second tour of the mill. The initial group mill tour was at the August CEG meeting. The first stop was the Leonard Chemical Superfund site, which New-Indy does not have access to, followed by a tour of the ASB. Since the group last toured the site in the summer, the aerators have returned to consistent operation levels, surface and subsurface solids removal progress is visibly evident and the haul road has been reinforced so work can continue through the winter months. Ongoing work was observed while the group asked questions and learned about future improvement projects. The tour then drove by the #4 Sludge Pond and saw where the geobags store waste material from the ASB. The stop took the group by the #1 Holding Pond where they saw the hydrogen peroxide diffuser. The final stops took the group by the primary clarifier and EQ Basin, where four excavators were working to remove waste material.
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New-Indy will notify the public about operational activity that may result in changes in emissions from the Catawba Mill. Any such notices will be posted in this section.
- Public Notification of Planned Activity on January 7, 2022
- Public Notification of Planned Activity on September 23, 2021
- Public Notification of Planned Activity on September 17, 2021
- Public Notification of Planned Activity on September 16, 2021
- Public Notification of Planned Activity on August 16, 2021
- Status on SCDHEC Order – 6/18/21
- Public Notification of Planned Activity on June 18, 2021
- Public Notification of Planned Activity on June 9, 2021
- Public Notification of Planned Activity on June 8, 2021
- New-Indy Catawba Enters Consent Decree with U.S. Environmental Protection Agency — 12.29.21
- New-Indy Catawba Presents Christian Services with $5000 Donation — 12.20.21
- New-Indy Catawba and Christian Services Partner on Holiday Donation Campaign and Food Drive — 12.5.21
- New-Indy Catawba’s Updated Website Offers New, Daily Information — 11.18.21
- Lawmakers visit New-Indy Catawba — 9.17.21
- Statement from New-Indy — 9.3.21
- Statement from New-Indy — 7.12.21
- Statement from New-Indy — 5.14.21
New-Indy has a dedicated phone line for reporting concerns or feedback about our operations. Please call 803.670.2001 and make sure to tell us your name, phone number and the reason for your outreach. If you would like to report an odor observation, please fill out the submission form below. Complete information will enable us to evaluate the issue thoroughly and follow up as needed.