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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Ridgewood Water

Manganese is a naturally occurring element that is common in food and drinking water. Excessive manganese exposures may impair children's attention, memory and intellectual capacity. Click here to read more about manganese.

 

409

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.177 ppb544ND - 3.10 ppb
20151.32 ppb577ND - 27.4 ppb
20162.21 ppb597ND - 101.0 ppb
20170.358 ppb668ND - 3.74 ppb
20184.42 ppb11329ND - 402.0 ppb
20190.349 ppb604ND - 7.98 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 100 ppb

The EWG Health Guideline of 100 ppb for manganese was defined by the state of Minnesota as a health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the brain and nervous system.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-054030099-08ND
2014-03-054030099-05ND
2014-03-054030099-06ND
2014-03-054030099-03ND
2014-03-054030099-09ND
2014-03-054030099-07ND
2014-03-054030099-01ND
2014-03-054030099-02ND
2014-03-054030099-11ND
2014-03-054030099-04ND
2014-03-054030099-10ND
2014-04-294040877-152.08 ppb
2014-05-284050791-09ND
2014-05-284050791-01ND
2014-05-284050791-042.22 ppb
2014-05-284050791-02ND
2014-05-284050791-03ND
2014-05-284050791-06ND
2014-05-284050791-05ND
2014-05-284050791-07ND
2014-05-284050791-08ND
2014-07-094070294-06ND
2014-07-094070294-142.18 ppb
2014-07-094070294-07ND
2014-07-094070294-04ND
2014-07-094070294-01ND
2014-07-094070294-08ND
2014-07-094070294-02ND
2014-07-094070294-05ND
2014-07-094070294-03ND
2014-07-094070294-09ND
2014-07-094070294-12ND
2014-07-094070294-11ND
2014-07-094070294-10ND
2014-07-094070294-13ND
2014-07-234070750-04ND
2014-07-234070750-02ND
2014-07-234070750-05ND
2014-07-234070750-01ND
2014-07-234070750-06ND
2014-07-234070750-03ND
2014-10-294100857-04ND
2014-10-294100857-03ND
2014-10-294100857-05ND
2014-10-294100857-12ND
2014-10-294100857-013.10 ppb
2014-10-294100857-08ND
2014-10-294100857-09ND
2014-10-294100857-02ND
2014-10-294100857-07ND
2014-10-294100857-06ND
2014-10-294100857-10ND
2014-10-294100857-11ND
2014-11-104110313-17ND
2015-03-095030145-09ND
2015-03-095030145-02ND
2015-03-095030145-01ND
2015-03-095030145-04ND
2015-03-095030145-06ND
2015-03-095030145-11ND
2015-03-095030145-05ND
2015-03-095030145-08ND
2015-03-095030145-07ND
2015-03-095030145-03ND
2015-03-095030145-10ND
2015-03-105030178-01ND
2015-03-305030652-01ND
2015-03-315040020-01ND
2015-05-125050322-11ND
2015-05-125050322-09ND
2015-05-125050322-03ND
2015-05-125050322-06ND
2015-05-125050322-01ND
2015-05-125050322-085.22 ppb
2015-05-125050322-07ND
2015-05-125050322-02ND
2015-05-125050322-10ND
2015-05-135050377-01ND
2015-06-095060246-0815.5 ppb
2015-07-155070473-07ND
2015-07-155070473-03ND
2015-07-155070473-05ND
2015-07-155070473-01ND
2015-07-155070473-08ND
2015-07-155070473-02ND
2015-07-155070473-06ND
2015-07-155070473-045.64 ppb
2015-07-155070473-10ND
2015-07-155070473-09ND
2015-07-155070473-13ND
2015-07-155070473-12ND
2015-07-155070473-11ND
2015-07-155070473-14ND
2015-07-165070495-01ND
2015-10-145100424-04ND
2015-10-145100424-03ND
2015-10-145100424-10ND
2015-10-145100424-05ND
2015-10-145100424-014.33 ppb
2015-10-145100424-09ND
2015-10-145100424-02ND
2015-10-145100424-07ND
2015-10-145100424-06ND
2015-10-145100424-08ND
2015-10-215100667-03ND
2015-10-215100667-0227.4 ppb
2015-10-215100667-046.60 ppb
2015-10-215100667-01ND
2015-11-185110571-01ND
2015-12-295120773-03ND
2015-12-295120773-0210.7 ppb
2016-01-076010110-06ND
2016-01-076010110-01ND
2016-01-076010110-07ND
2016-01-076010110-04ND
2016-01-076010110-02ND
2016-01-076010110-05ND
2016-01-076010110-037.54 ppb
2016-01-076010110-09ND
2016-01-076010110-10ND
2016-01-076010110-11ND
2016-01-076010110-08ND
2016-01-076010110-12ND
2016-01-086010173-012.52 ppb
2016-01-086010173-02ND
2016-04-066040180-04ND
2016-04-066040180-06ND
2016-04-066040180-05ND
2016-04-066040180-02ND
2016-04-066040180-03ND
2016-04-066040180-01101.0 ppb
2016-04-066040180-08ND
2016-04-066040180-07ND
2016-04-066040180-09ND
2016-04-196040629-023.37 ppb
2016-04-196040629-01ND
2016-05-036050075-017.98 ppb
2016-05-116050372-043.42 ppb
2016-07-066070112-06ND
2016-07-066070112-09ND
2016-07-066070112-07ND
2016-07-066070112-04ND
2016-07-066070112-01ND
2016-07-066070112-08ND
2016-07-066070112-02ND
2016-07-066070112-05ND
2016-07-066070112-034.53 ppb
2016-07-066070112-11ND
2016-07-066070112-10ND
2016-07-066070112-14ND
2016-07-066070112-13ND
2016-07-066070112-12ND
2016-07-066070112-15ND
2016-10-116100288-07ND
2016-10-116100288-06ND
2016-10-116100288-11ND
2016-10-116100288-08ND
2016-10-116100288-04ND
2016-10-116100288-03ND
2016-10-116100288-09ND
2016-10-116100288-01ND
2016-10-116100288-05ND
2016-10-116100288-02ND
2016-10-116100288-10ND
2016-10-116100288-13ND
2016-10-116100288-12ND
2016-10-116100288-14ND
2016-10-116100288-15ND
2016-11-216110726-14ND
2016-12-206120676-14ND
2017-01-187010444-04ND
2017-01-187010444-07ND
2017-01-187010444-05ND
2017-01-187010444-03ND
2017-01-187010444-02ND
2017-01-187010444-06ND
2017-01-187010444-01ND
2017-01-187010444-10ND
2017-01-187010444-11ND
2017-01-187010444-12ND
2017-01-187010444-14ND
2017-01-187010444-13ND
2017-01-187010444-08ND
2017-01-187010444-09ND
2017-01-187010444-15ND
2017-01-187010444-16ND
2017-01-247010573-01ND
2017-04-187040506-043.24 ppb
2017-04-187040506-062.43 ppb
2017-04-187040506-053.74 ppb
2017-04-207040580-05ND
2017-04-207040580-01ND
2017-04-207040580-10ND
2017-04-207040580-03ND
2017-04-207040580-02ND
2017-04-207040580-04ND
2017-04-207040580-07ND
2017-04-207040580-08ND
2017-04-207040580-06ND
2017-04-207040580-09ND
2017-05-107050367-023.51 ppb
2017-05-107050367-012.34 ppb
2017-05-177050640-03ND
2017-07-057070048-06ND
2017-07-057070048-10ND
2017-07-057070048-07ND
2017-07-057070048-04ND
2017-07-057070048-03ND
2017-07-057070025-01ND
2017-07-057070048-08ND
2017-07-057070048-012.60 ppb
2017-07-057070048-05ND
2017-07-057070048-023.06 ppb
2017-07-057070048-09ND
2017-07-057070048-12ND
2017-07-057070048-11ND
2017-07-057070048-15ND
2017-07-057070048-14ND
2017-07-057070048-13ND
2017-08-017080021-01ND
2017-10-037100035-07ND
2017-10-037100035-06ND
2017-10-037100035-08ND
2017-10-037100035-12ND
2017-10-037100035-09ND
2017-10-037100035-04ND
2017-10-037100035-03ND
2017-10-037100035-10ND
2017-10-037100035-01ND
2017-10-037100035-05ND
2017-10-037100035-022.72 ppb
2017-10-037100035-11ND
2017-10-037100035-14ND
2017-10-037100035-13ND
2017-10-037100035-15ND
2017-10-307100929-01ND
2018-01-038010030-05ND
2018-01-038010030-04ND
2018-01-038010030-03ND
2018-01-038010030-02ND
2018-01-038010030-015.03 ppb
2018-01-038010030-06ND
2018-01-038010030-07ND
2018-01-038010030-08ND
2018-01-098010168-03ND
2018-01-098010168-04ND
2018-01-098010168-01ND
2018-01-098010168-02ND
2018-01-098010168-05ND
2018-01-098010168-06ND
2018-02-058020087-035.18 ppb
2018-04-038040027-06ND
2018-04-038040027-01ND
2018-04-038040027-07ND
2018-04-038040027-04ND
2018-04-038040027-03ND
2018-04-038040027-08ND
2018-04-038040027-05ND
2018-04-038040027-024.37 ppb
2018-04-038040027-09ND
2018-04-038040027-11ND
2018-04-038040027-10ND
2018-04-048040074-03402.0 ppb
2018-04-048040074-0511.2 ppb
2018-04-198040672-03ND
2018-04-268040945-02ND
2018-04-268040945-01ND
2018-05-3139546750.741 ppb
2018-06-043951740ND
2018-06-043951745ND
2018-06-04395192026.1 ppb
2018-06-0439519131.19 ppb
2018-06-0539535351.27 ppb
2018-06-053953208ND
2018-06-053953369ND
2018-06-053952961ND
2018-06-0739556942.00 ppb
2018-06-073955809ND
2018-06-0739558590.816 ppb
2018-06-0739556600.750 ppb
2018-06-073955723ND
2018-06-133961495ND
2018-06-133961325ND
2018-06-133961353ND
2018-06-133961251ND
2018-06-133960693ND
2018-06-1839671473.45 ppb
2018-06-183967137ND
2018-06-1939671120.591 ppb
2018-06-1939671180.783 ppb
2018-06-193967177ND
2018-06-193967157ND
2018-07-028070013-07ND
2018-07-028070013-11ND
2018-07-028070013-08ND
2018-07-028070013-05ND
2018-07-028070013-04ND
2018-07-028070013-01ND
2018-07-028070013-09ND
2018-07-028070013-02ND
2018-07-028070013-06ND
2018-07-028070013-034.88 ppb
2018-07-028070013-10ND
2018-07-028070013-13ND
2018-07-028070013-14ND
2018-07-028070013-12ND
2018-07-028070013-16ND
2018-07-028070013-15ND
2018-07-113986376ND
2018-09-118090342-01ND
2018-09-1340562212.20 ppb
2018-10-028100082-08ND
2018-10-028100082-07ND
2018-10-028100082-09ND
2018-10-028100082-01ND
2018-10-028100082-055.96 ppb
2018-10-028100082-04ND
2018-10-028100082-02ND
2018-10-028100082-06ND
2018-10-028100082-035.95 ppb
2018-10-038100136-01ND
2018-10-038100136-02ND
2018-10-038100136-03ND
2018-10-038100136-05ND
2018-10-038100136-06ND
2018-10-038100136-04ND
2018-10-038100136-07ND
2018-12-0541422000.429 ppb
2018-12-054142397ND
2018-12-054142299ND
2018-12-054142236ND
2018-12-054141736ND
2018-12-054141810ND
2018-12-104145504ND
2018-12-1041456121.37 ppb
2018-12-104145699ND
2018-12-104145691ND
2018-12-1241498390.765 ppb
2018-12-1241489480.750 ppb
2018-12-1241488740.804 ppb
2018-12-124149027ND
2018-12-1241490540.403 ppb
2018-12-124149041ND
2018-12-1341499217.20 ppb
2018-12-1341500061.83 ppb
2018-12-134150284ND
2018-12-1341501970.785 ppb
2018-12-208120804-01ND
2018-12-2741600861.20 ppb
2019-01-109010342-02ND
2019-01-109010342-06ND
2019-01-109010342-03ND
2019-01-109010342-01ND
2019-01-109010342-09ND
2019-01-109010342-04ND
2019-01-109010342-08ND
2019-01-109010342-05ND
2019-01-109010342-15ND
2019-01-109010342-14ND
2019-01-109010342-13ND
2019-01-109010342-11ND
2019-01-109010342-12ND
2019-01-109010342-07ND
2019-01-109010342-16ND
2019-01-109010342-10ND
2019-03-0442157550.893 ppb
2019-04-109040481-02ND
2019-04-109040481-06ND
2019-04-109040481-12ND
2019-04-109040481-07ND
2019-04-109040481-11ND
2019-04-109040481-10ND
2019-04-109040481-09ND
2019-04-109040481-01ND
2019-04-109040481-03ND
2019-04-109040481-08ND
2019-04-109040481-05ND
2019-04-109040481-04ND
2019-06-119060394-01ND
2019-07-249071191-08ND
2019-07-249071191-14ND
2019-07-249071191-02ND
2019-07-249071191-01ND
2019-07-249071191-05ND
2019-07-249071191-09ND
2019-07-249071191-11ND
2019-07-249071191-075.42 ppb
2019-07-249071191-06ND
2019-07-249071191-10ND
2019-07-249071191-03ND
2019-07-249071191-13ND
2019-07-249071191-12ND
2019-07-249071191-04ND
2019-09-199090882-017.98 ppb
2019-10-099100466-06ND
2019-10-099100466-07ND
2019-10-099100466-13ND
2019-10-099100466-03ND
2019-10-099100466-01ND
2019-10-099100466-11ND
2019-10-099100466-09ND
2019-10-099100466-05ND
2019-10-099100466-08ND
2019-10-099100466-04ND
2019-10-099100466-12ND
2019-10-099100466-10ND
2019-10-099100466-02ND
2019-11-189110918-01ND
2019-12-049120094-016.64 ppb