Radon occurrence in groundwater from 16 geologic units in Pennsylvania
Evaluation of radon occurrence in groundwater from 16 geologic units in Pennsylvania, 1986–2015, with application to potential radon exposure from groundwater and indoor air
Scientific Investigations Report 2017-5018
“Results from 1,041 groundwater samples collected during 1986‒2015 from 16 geologic units in Pennsylvania, associated with 25 or more groundwater samples with concentrations of radon-222, were evaluated in an effort to identify variations in radon-222 activities or concentrations and to classify potential radon-222 exposure from groundwater and indoor air. Radon-222 is hereafter referred to as “radon.” Radon concentrations in groundwater greater than or equal to the proposed U.S. Environmental Protection Agency (EPA) maximum contaminant level (MCL) for public-water supply systems of 300 picocuries per liter (pCi/L) were present in about 87 percent of the water samples, whereas concentrations greater than or equal to the proposed alternative MCL (AMCL) for public water-supply systems of 4,000 pCi/L were present in 14 percent. The highest radon concentrations were measured in groundwater from the schists, gneisses, and quartzites of the Piedmont Physiographic Province.
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In this study, conducted by the U.S. Geological Survey in cooperation with the Pennsylvania Department of Health and the Pennsylvania Department of Environmental Protection, groundwater samples were aggregated among 16 geologic units in Pennsylvania to identify units with high median radon concentrations in groundwater. Graphical plots and statistical tests were used to determine variations in radon concentrations in groundwater and indoor air. Median radon concentrations in groundwater samples and median radon concentrations in indoor air samples within the 16 geologic units were classified according to proposed and recommended regulatory limits to explore potential radon exposure from groundwater and indoor air. All of the geologic units, except for the Allegheny (Pa) and Glenshaw (Pcg) Formations in the Appalachian Plateaus Physiographic Province, had median radon concentrations greater than the proposed EPA MCL of 300 pCi/L, and the Peters Creek Schist (Xpc), which is in the Piedmont Physiographic Province, had a median radon concentration greater than the EPA proposed AMCL of 4,000 pCi/L. Median concentrations of radon in groundwater and indoor air were determined to differ significantly among the geologic units (Kruskal-Wallis test, significance probability, p<0.001), and Tukey’s test indicated that radon concentrations in groundwater and indoor air in the Peters Creek Schist (Xpc) were significantly higher than those in the other units. Also, the Peters Creek Schist (Xpc) was determined to be the area with highest potential of radon exposure from groundwater and indoor air and one of two units with the highest percentage of population assumed to be using domestic self-supplied water (81 percent), which puts the population at greater potential of exposure to radon from groundwater.
Potential radon exposure determined from classification of geologic units by median radon concentrations in groundwater and indoor air according to proposed and recommended regulatory limits is useful for drawing general conclusions about the presence, variation, and potential radon exposure in specific geologic units, but the associated data and maps have limitations. The aggregated indoor air radon data have spatial accuracy limitations owing to imprecision of geo-coded test locations. In addition, the associated data describing geologic units and the public water supplier’s service areas have spatial and interpretation accuracy limitations. As a result, data and maps associated with this report are not recommended for use in predicting individual concentrations at specific sites nor for use as a decision-making tool for property owners to decide whether to test for radon concentrations at specific locations. Instead, the data and maps are meant to promote awareness regarding potential radon exposure in Pennsylvania and to point out data gaps that exist throughout the State.”
Link to Study “sir20175018”
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DCNR Announces Improvements To PA’s PaGWIS – Private Well Owner Database
DCNR Announces Improvements To PA’s PaGWIS
The Pennsylvania Department of Conservation and Natural Resources (DCNR) recently announced improvements to the PA Groundwater Information System (PaGWIS) private water well database. PaGWIS is a repository of half a million water well records dating back to 1965. Changes to the database include the addition of more than 1,600 springs found in the Commonwealth, and improved search tools, data packages, and report formats.
To find out more, please see the link below:
http://www.dcnr.state.pa.us/cs/groups/public/documents/news/DCNR_20032750.pdf
Get Your Water Tested
Pharmaceuticals and Personal Care Products (PPCPs) and Your Water
“A study by the U.S. Geological Survey published in 2002 brought attention to PPCPs in water. In a sampling of 139 susceptible streams in 30 states, detectable yet minute quantities of PPCPs were found in 80 percent of the streams. The most common pharmaceuticals detected were steroids and nonprescription drugs. Antibiotics, prescription medication, detergents, fire retardants, pesticides and natural and synthetic hormones were also found.
The potential human health risks associated with minute levels of PPCPs in water in general and drinking water in particular is still being determined. Until more is known, there is much the public health and environmental protection community can do to educate the public about taking proactive steps concerning the use and disposal of PPCPs.”
“Pharmaceuticals and personal care products (PPCPs) are a diverse group of chemicals including:
- all human and veterinary drugs
- dietary supplements
- topical agents such as cosmetics and sunscreens
- laundry and cleaning products
- fragrances and all the “inert” ingredients that are part of these products
Pharmaceuticals and personal care products are introduced to the environment as pollutants in a variety of ways, including:
- intentional disposal of unneeded PPCPs (flushing)
- bathing or swimming
- discharge from municipal sewage systems or private septic systems
- leaching from landfills
- excretion by humans and domestic animals
- runoff from confined animal feeding operations
- discharge of raw sewage from storm overflow events, cruise ships, and some rural homes directly into surface water
- accidental discharges to a groundwater recharge area
- loss from aquaculture
- spray-drift from antibiotics used on food crops.”
Other Resources
pharmaceuticals-PPCPs
ppt_ppcp_Presentation
Drinking Water Testing – PFAS
Water Treatment – Point Of Use for PFOS and PFOA- NSF P473
Technical References
Your Drinking Water and Your Health
Your Drinking Water and Your Health by Brian Oram
Even though 60% of the human body is water, water is a resource that is often taken for granted. The primary concerns with water relate to having adequate quantity of the proper quality. In terms of hydration, drinking water is probably one of the best ways to keep your body healthy. Water is used in your body to help maintain your temperature and ensures the proper operation of your circulatory, digestive, and neurological systems. Water is one of the pathways that potential contaminants and disease causing agents can enter the body, so the quality is also important. Therefore, we need drinking water of adequate quantity of the proper quality.
When the body is not properly hydrated, our body’s response is to make us feel thirsty, but if you miss this clue watch out for dry mouth, swollen tongue, weakness, dizziness, confusion, palpitations, and fainting. If over hydrated, you can become water intoxicated or hyperhydration. If hyperhydration occurs, the kidneys can not process all the water and the system becomes overwhelmed. There are phone apps and other tools to help you to remember to drink enough water, but our general recommendation is if you feel thirsty it is time to get a drink and given a choice pick water.
Water comes in many forms, which can include premium bottled water, tap water, spring water, carbonated water, soda, coffee, tap water, nutrient infused water, juices, and purified water. Of all these, it is my professional opinion that we just need to drink water. The two most common sources of drinking water for a community is either public water or a private water source. A public water source is always regulated by both the federal and state governments and many may call this city water or tapwater, but well or spring water may be from a public or private source. If you get your water directly from a well or spring, this is a private source and this is not commonly regulated.
If you get your water from city water, the most common health concerns are related to the presence of chlorine-by-products or corrosive by-product in the United States, the public water supply systems are disinfected using various forms of chlorine and phosphate is added to attempt to control corrosion. The chlorine is used to disinfect the water, but it can react with naturally occurring organics to form trihalomethanes, i.e., a potential carcinogen; while phosphate will react with the metals in the water to form a scale or coating on the inside of the piping, see “Flint, Michigan”. If you are on well water, the most common problems are the presence of bacteria and elevated levels of salts in the water, like nitrate, chloride, and sulfate, or corrosive water. In some cases, the water may contain elevated levels of radionuclides and trace metals, like arsenic, iron, lead, and manganese. The quality of the drinking water depends on type of water, location, level of treatment, the condition of your plumbing, and your home or house. In some areas, the community is concerned about pipelines and natural gas development, but a hidden problem may be the existing quality of their drinking water.
For citizens, our general recommendations related to drinking water are:
1. City Water Customers- Review any annual “Consumer Confident Reports” produced by your water supplier and act accordingly.
2. Private Water Sources –Get your water tested, at least annually, and have the results review by an expert.
3. Look out for potential problems with your drinking water, based on what you can see, taste, smell, or otherwise detect with your senses or problems that may be caused by the water.
4. Download our free “Know Your H20 Phone App” or visit our website – all Free.
A few short phrases we should try to remember.
We ALL Live Downstream !
Groundwater and Surface water are Connected!
We are Part of the Water Cycle – Not just an Observer!
Websites of Interest
Consumer Confidence Reports
https://www.epa.gov/ccr/ccr-information-consumers
Neighborhood Hazardous Reports and Water Testing
http://www.knowyourh20.us
Nationwide Program: Community Environmental Report Your Home Health Status and Know Your H20?
Nationwide Program:
Community Environmental Report
Your Home Health Status and Know Your H20?
Direct Link to this Nationwide Program-
Visit Us at Keystone Clean Water Team
Know Your H20?
We Launched Two – New Phone Apps and they are Available for IOS and Android Platforms
- Know Your H20? – Know Your H2O? is an educational tool that can help you diagnose the problem with your water. This app will lead you through a series of questions to pinpoint the issues with your water. You can reach your diagnosis through describing symptoms that are effecting your home, your health, or the water itself. This App is linked to the Water Research Portal.
- Baseline Water Testing (Pennsylvania) – The PA Baseline Testing mobile app is an educational tool for residents of Pennsylvania who are impacted by Oil & Gas Development or Subsurface Coal Development. By selecting which factor impacts your region, you can discover various recommendations and tiers of water testing that can help bring you piece of mind about the safety of your drinking water. Got Data? You can also submit your own testing data and results to help continue to build the PA Clean Water Team’s database.
- New Online Water Quality Diagnostic Tool.
The Nationwide Program
- The program helps you to identify the existing and historic environmental hazards in your community.
- We are working with a national environmental database search company to offer a report to help you understand your home or your future homes environmental health status within a community.
- We are doing this by taking a snapshot of the current and historic environmental concerns and hazards in the community and a review of select criminal activity.
- Featured Activities or Issues: Old Landfills, Leaky Fuel Tanks, Hazardous Waste Sites, Department of Defense Facilities, Superfund Sites, Radiological Sources, Clandestine Drug Labs, Floodplains and Wetlands and more.
- Neighboorhood Hazard Reports cost $ 55.00 per property, payable to the Keystone Clean Water Team.
Questions – please contact us at (570) 335-1947 or email the program manager, Mr. Brian Oram, at bfenviro@ptd.net.
Keystone Clean Water Team – 501c3
15 Hillcrest Drive, Dallas, PA 18612
http://www.pacleanwater.org
B.F. Environmental Consultants Inc.
http://www.bfenvironmental.com
@KnowyourH20
Bacterial contamination in private water wells send thousands of people hurling to the ER
“It may not have been bad shrimp or dirty lettuce that kept you up all night. A recent study shows that in North Carolina, microbes in drinking water from private wells are responsible for estimated 29,200 emergency room visits for acute GI illnesses each year. That number accounts for nearly all visits of that type and cause.
This is a particularly serious problem in North Carolina, where more than a third of all residents — 3.3 million — rely on private wells for their drinking water. These wells, which can source their water from beneath the ground, a spring or a river, are largely unregulated.
(This is why contaminants from coal ash, such as arsenic, lead and chromium 6, which have even more harmful long-term health effects, are of such concern — and why widespread testing is necessary.)
An article in this month’s Environmental Health Perspectives — among its co-authors is Jacqueline MacDonald Gibson of UNC’s Gillings School of Global Public Health — concludes that people on private wells are more likely to get sick from their water than those on community systems, such as municipal utilities.
enviro-health-perspectives-drinking-water
From the Study
The presence of total coliforms in groundwater indicates that microorganisms from surface water have been able to reach the aquifer and a more rigorous monitoring should begin for other microorganisms (pathogenic) which might also reach the aquifer. When fecal indicators are detected, anything can happen, and will happen, with potential serious public health implications.”
To learn or read more – Go to Article
More importantly to Act Now and Get Your Water Tested.
Monitoring your homes health and the Neighboorhood Hazard Reports.
Private Well Owner Outreach to Private Property Owners Association in the Poconos – Monroe County
The Keystone Clean Water Team was very happy to work with the local “Poconos Region” Property Owners Association to offer a private well water screening test for the residents drinking water. For the 2016 program, a total of 16 residents participated in the program and for this program water testing was offered at two different tiers. The basic tier provide general information related to the bacterial quality of the water and level of nitrate, iron, and total hardness. The advanced tier provided testing for trace metals such as arsenic, copper, lead, zinc, and more comprehensive analysis of the overall quality of the water. The following is a summary of the results:
2 samples were positive for total coliform bacteria, but no samples were positive for E. coli.;
1 sample exceeded the drinking water standard for lead and 5 other samples had detectable levels of lead in the water;
13 of the 16 samples contained detectable levels of nitrate, but at no point did the level exceed or approach the drinking water standard of 10 mg/L;
1 sample had elevated levels of manganese, but 3 had detectable levels of manganese in the water; and
15 of the 16 samples were considered slightly to corrosive to metal piping and 1 sample was considered very corrosive to metal piping.
The pH of the water ranged for 6.2 to 7.5 and only two samples had a pH that was less than the recommended drinking water standard of 6.5. These samples were associated with water that had detectable levels of lead, but not the highest level of lead. The sample with the highest level of lead appeared to be a sample collected at the kitchen sink after the water had been treated with a water softener.
From this snapshot, we learned the following:
- There appears to be a 13 % probability that a private well may contain total coliform bacteria.
- The water produced from the aquifer tends to be slightly corrosive and have total hardness that ranges from 30 to 150 mg/L.
- The groundwater does not appear to have elevated levels of nitrate.
- The groundwater does not appear to have E. coli. bacteria.
- Lead was detected in some water samples, but the occurrence in the well water is related to the corrosiveness of the water, type of water treatment, and type of plumbing fixtures in the home and not the groundwater aquifer.
- Homeowners that reported problems with sulfur odor or black particles were the same homeowners that had elevated or detectable level of manganese.
- If you are considering the use of a water softener, please consider the type of household plumbing and it may be necessary to install a neutralizing filter.
Based on these results, we recommend that all private well owners conduct an annual water quality test. To facilitate this effort, the Keystone Clean Water Team offers an online mail order informational water testing program for private well owners throughout the USA and we offer our Know Your H20? Free Phone App. To learn about our mail order program, please visit us at http://www.water-research.net or http://www.knowyourh20.us. If you have any questions, please call or email 570-335-1947 or bfenviro@ptd.net.
Respectfully submitted,
Mr. Brian Oram, PG
Governor Cuomo Announces Immediate State Action Plan to Address Contamination in Hoosick Falls – PFOA
Governor Andrew M. Cuomo today announced a series of immediate actions by New York State to address contamination in the Village of Hoosick Falls’ water supply and at the Saint-Gobain Performance Plastics Site. These announcements follow today’s meeting between the Governor and senior state and local officials.
“We are taking immediate and aggressive actions to protect the health of Hoosick Falls residents,” said Governor Cuomo. “These actions will ensure that the source and extent of PFOA contamination is identified, and all necessary steps are taken to swiftly address the chemical’s presence. My administration is investigating this situation fully, and we will do whatever is necessary to ensure safe, clean drinking water for local residents.”
Emergency regulation issued to classify PFOA as a hazardous substance; Saint-Gobain facility to be classified as a State Superfund Site to unlock state resources and legal remedy to address contamination.
State will conduct Health Risk Analysis to establish PFOA drinking water guidance level; retest private wells in the village of Hoosick Falls; and immediately install filtration systems at school and other community gathering places
State hotline (1-800-801-8092) established to help public stay informed.
EPA – Drinking Water Health Advisory
NJ – Drinking Water Guidance on PFOA – DEP also has taken the first step toward developing a preliminary drinking-water guidance value (Pdf Format) for PFOA. Based on existing animal studies and estimates derived from a lifetime of exposure (70 years), DEP identified a guidance level of .04 parts per billion (ppb). Average blood levels in the United States are approximately 5 ppb.
The Details
These actions include to:
- Issue Emergency Regulation to Classify PFOA as Hazardous Substance: The state Department of Environmental Conservation today issued an emergency regulation to classify Perfluorooctanoic acid (PFOA), the contaminant found in the Village’s water supply, as a hazardous substance. This provides DEC with the legal authority to pursue State Superfund designation and cleanup of the site using State Superfund resources.
- Classify Saint-Gobain Facility as a State Superfund Site to Unlock State Resources to Address Contamination: Further, the state announced it will classify the Saint-Gobain Performance Plastics Corporation McCaffrey Street Plant and other possible sources of contamination that may be identified in Hoosick Falls as State Superfund sites to unlock state funding resources under the State Superfund Program to address the contamination in the community. DEC has already initiated its investigation and inspected the Saint-Gobain property. If in the course of its continuing investigation DEC finds any additional sources of PFOA contamination, they will also be listed. The Superfund Class 2 designation will allow the state to use State Superfund resources to investigate and clean up PFOA contamination much more quickly than waiting for a federal Superfund designation. In addition, the state will be able to seek cost recovery for the investigation and cleanup activities. DEC will collaborate closely with EPA in the investigation of PFOA in groundwater, soil and other media in Hoosick Falls to determine appropriate cleanup activities.
- Conduct Health Risk Analysis to Establish PFOA Drinking Water Guidance Level: To address the water supply contamination, the state Department of Health will conduct a risk analysis, examining the latest national research, to establish a drinking water guidance level for PFOA.
- Retest Private Wells in the Village of Hoosick Falls: In addition, the state Department of Health will retest 24 private wells in the vicinity of the Saint-Gobain facility.
- Immediately Install Filtration Systems at School and Other Community Gathering Places: Out of an abundance of caution, the state committed to installing water filtration systems at the local school, public health facilities and other community gathering places.
- Blood Testing of Community Members to Begin in Mid-February: Beginning in mid-February, DOH will begin blood testing for community members for those who wish to be tested.
- Establish State Hotline for Public to Stay Informed: Residents can contact 1-800-801-8092 for more information.
Further, once PFOA contamination is addressed, the state committed to work with the community and banks to safeguard property values.
Department of Environmental Conservation Acting Commissioner Basil Seggos said: “Under the direction of Governor Cuomo, New York State is working collaboratively with all levels of government from the EPA to the village and town, to address the contamination in Hoosick Falls. Classifying PFOA as a hazardous substance and making the Saint-Gobain site a State Superfund site will free up resources to investigate and clean up the contamination quickly. We will continue our open dialogue with local officials and the people of Hoosick Falls to ensure they are informed throughout our investigation and remediation.”
Department of Health Commissioner Dr. Howard Zucker said: “The actions taken today by Governor Cuomo, the Department of Environmental Conservation and the Department of Health will safeguard the residents of Hoosick Falls and help address their concerns. The Department of Health will continue to test private wells, and will soon begin a blood testing program to measure residents’ exposure to PFOA. Additionally, DOH will continue to examine the latest and best scientific research to establish a drinking water guidance level for PFOA.”
Senator Kathy Marchione said: “I want to personally thank Governor Cuomo for convening this afternoon’s highly productive and positive meeting regarding Hoosick Falls. The announcement that the state recognizes the seriousness of this issue and is taking purposeful action that will help Hoosick Falls families is welcome news. Our discussion today focused on realistic solutions including the state’s regulation of PFOAs, testing of all local wells, blood testing and carbon filtration systems to help protect the health and well-being of families in Hoosick Falls. The positive steps agreed to today are welcome news for the community. I have been carefully monitoring this situation and will continue advocating for Hoosick Falls families as this process moves forward.”
Town of Hoosick Supervisor Mark Surdam said: “I am thankful for the Governor’s recognition of the problem our community is facing with its water supply, and for the actions the state taking today. I want to assure all of the residents in the Town of Hoosick that we are undergoing a tremendous effort to deal with these concerns.”
Village of Hoosick Falls Mayor David Borge said: “I am grateful for Governor Cuomo’s swift action to help our community quickly restore the use of our water supply – and am pleased by the level of coordination by state agencies responding to this issue. This is a major step forward for all residents of the greater Hoosick Falls community.”
Hoosick Falls Central School Superintendent Kenneth Facin said: “Today’s meeting with Governor Cuomo was productive and meaningful, and promises real results for our students and parents. We are appreciative to be a part of a singular, concerted effort to rectify the environmental issues surrounding our water supply. As a proactive measure to ensure the health and safety of our students, the state is assisting our school district with the installment of a carbon filtration system. We are grateful for the Governor’s leadership in galvanizing resources to assist our community.”
State’s Earlier Actions to Address PFOA Contamination
Today’s actions build upon DEC and DOH’s initiatives announced earlier this month to address the PFOA contamination to protect public health and the environment. The state urged EPA to take vigorous action on the federal level to regulate PFOA and to quickly add the Hoosick Falls site to the Superfund National Priorities List. The state, Saint-Gobain and the Village are collaboratively working on an agreement to install water treatment systems to remove hazardous chemicals from the Village’s water supply. In addition, DOH is undertaking a cancer registry study to investigate the incidence of cancer among Village residents and biomonitoring studies. Further DOH is offering PFOA biomonitoring to measure the level of PFOA in Village residents.
PFOA was detected in the Village’s public drinking water in 2014. Since then, DOH has worked closely with the Village to provide technical advice and assistance for water sampling and to evaluate water treatment options to eliminate health risks. Because the levels of PFOA in public water were higher than the EPA health advisory level, DOH determined that people should reduce their exposure by avoiding the use of tap water for drinking and cooking. In addition, DOH continues to monitor private wells and will have more results very soon.
Although the use of PFOA is being phased out, it is still used to make household and commercial products that resist heat, and repel oil, stains, grease, and water. This includes nonstick cookware, surface coatings for stain-resistant carpets and fabric, and paper and cardboard food packaging. Studies of people have associated exposure to PFOA with an increased risk for several health effects. This includes associations with effects on the liver, immune system, thyroid gland, cholesterol levels, blood pressure during pregnancy, and kidney and testicular cancer.
Know Your Community Health Hazards ! Know Your H20?
Get Your Water Tested !