The Power of Information

National Drinking Water Database


Richland Township Sb Utilities - Levittown, PA


Serves 3,958 people

Manganese

Manganese is a naturally occurring element released from mineral deposits as well as industrial use.
 
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
62 days
Test Days Exceeding Legal LimitsNumber of days in which the samples taken in that day exceed the Maximum Contaminant Level (Depending on the contaminant and its MCL, that may or may not trigger an MCL violation. Some MCLs are based on averages spanning several months to a year)
62 days
Test DaysNumber of days in which this chemical has reported results in the data we received from the State
71 days
Tests ConductedNumber of individual tests done for this contaminant
109 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
ManganeseManganese is a naturally occurring element released from mineral deposits as well as industrial use.127.06 ppb
338 ppb
Yes
50 ppb
Yes
50 ppb
NOTE: Each dot in the above graph represents one month.
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

Health Based and Legal Limits for Manganese

Health Based Limits for Manganese

StandardDescriptionLevel
EPA Human Health Water Quality CriteriaWater quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency.50 ppb
National Secondary Drinking Water RegulationsA National Secondary Drinking Water Regulation is a non-enforceable guideline regarding contaminants that may cause cosmetic effects (such as taste, odor, or color). Some states choose to adopt them as enforceable standards. Source: U.S. Environmental Protection Agency. 50 ppb
Lifetime health-based limit, non-cancer riskConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency.300 ppb
Health-Based Screening LevelA benchmark concentration of contaminants in water that may be of potential concern for human health, if exceeded. For noncarcinogens, the HBSL represents the contaminant concentration in drinking water that is not expected to cause any adverse effects over a lifetime of exposure. For carcinogens, the HBSL range represents the contaminant concentration in drinking water that corresponds to an excess estimated lifetime cancer risk of 1 chance in 1 million to 1 chance in 10 thousand. Source: U.S. Geological Survey.300 ppb
Children's health-based limit for 1-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.1000 ppb
Children's health-based limit for 10-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.1000 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.1600 ppb

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2009-03-25139 ppb10139 ppb
2009-03-2090.4 ppb1090.4 ppb
2009-02-1167.5 ppb210 to 135 ppb
2009-01-26254 ppb10254 ppb
2009-01-23125 ppb10125 ppb
2009-01-220 ppb110 ppb
2008-12-1293.1 ppb1093.1 ppb
2008-12-05107 ppb10107 ppb
2008-11-14136 ppb10136 ppb
2008-11-12121 ppb10121 ppb
2008-10-10148 ppb20134 to 162 ppb
2008-09-12205.5 ppb20124 to 287 ppb
2008-08-13105.5 ppb2034 to 177 ppb
2008-07-0946.6 ppb210 to 93.2 ppb
2008-06-1980.6 ppb2050.2 to 111 ppb
2008-05-0552 ppb2044.6 to 59.4 ppb
2008-04-1459.9 ppb1059.9 ppb
2008-04-04135 ppb10135 ppb
2008-03-0746.6 ppb1046.6 ppb
2008-03-0692.2 ppb1092.2 ppb
2008-02-25308 ppb10308 ppb
2008-02-1590.35 ppb2033.7 to 147 ppb
2008-01-07196 ppb10196 ppb
2008-01-0350.2 ppb1050.2 ppb
2007-12-07110.75 ppb2050.5 to 171 ppb
2007-11-0118.75 ppb210 to 37.5 ppb
2007-10-0588.05 ppb2038.1 to 138 ppb
2007-09-0694 ppb2039 to 149 ppb
2007-08-1664.95 ppb2044.3 to 85.6 ppb
2007-07-1327.5 ppb2012.4 to 42.6 ppb
2007-06-15136.55 ppb2018.1 to 255 ppb
2007-05-10173.55 ppb2057.1 to 290 ppb
2007-04-13173.7 ppb2052.4 to 295 ppb
2007-03-12293 ppb10293 ppb
2007-03-0152.6 ppb1052.6 ppb
2007-02-16308 ppb20307 to 309 ppb
2007-02-1256.5 ppb1056.5 ppb
2007-01-05183.5 ppb20145 to 222 ppb
2006-12-01108.6 ppb2036.2 to 181 ppb
2006-11-10153.45 ppb2046.9 to 260 ppb
2006-10-0943.5 ppb1043.5 ppb
2006-10-06257 ppb10257 ppb
2006-09-18179.55 ppb2050.1 to 309 ppb
2006-08-18338 ppb10338 ppb
2006-08-1560.9 ppb1060.9 ppb
2006-07-14225 ppb20166 to 284 ppb
2006-06-12151.25 ppb2065.5 to 237 ppb
2006-05-12168 ppb10168 ppb
2006-05-10201.55 ppb2066.1 to 337 ppb
2006-04-07157 ppb2023 to 291 ppb
2006-03-09106.4 ppb2046.8 to 166 ppb
2006-02-10112.1 ppb2014.2 to 210 ppb
2006-02-0338.4 ppb1038.4 ppb
2006-01-0691.85 ppb2021.7 to 162 ppb
2005-12-0291.1 ppb2055.2 to 127 ppb
2005-11-04137.15 ppb2083.3 to 191 ppb
2005-10-14116.2 ppb2049.4 to 183 ppb
2005-09-09120.4 ppb2056.8 to 184 ppb
2005-08-05139.1 ppb2049.2 to 229 ppb
2005-07-22169 ppb10169 ppb
2005-07-1549.9 ppb1049.9 ppb
2005-06-14113.8 ppb2034.6 to 193 ppb
2005-05-12116.75 ppb2011.5 to 222 ppb
2005-04-15121.25 ppb2035.5 to 207 ppb
2005-03-3073 ppb1073 ppb
2005-03-24129 ppb10129 ppb
2005-02-11220 ppb10220 ppb
2005-02-10209.5 ppb20128 to 291 ppb
2005-01-28123 ppb10123 ppb
2005-01-14169 ppb10169 ppb
2004-12-170 ppb110 ppb