MAINE
For 1999 through 2022, click on the date for the corresponding eight-hour average peak ozone map for that day. In October 2015, EPA revised the 8-hour ozone standard and changed the Air Quality Index (AQI) to align with this new standard. Maps for days in 2007 and earlier are based on the 1997 8-hour ozone standard (0.08 ppm). Maps for 2008 through 2015 are based on the 2008 ozone standard (0.075 ppm). Maps for 2016 through 2023 are based on the 2015 ozone standard (0.070 ppm). Click Here for a table showing the revised AQI breakpoints for the 1997, 2008, and 2015 ozone standards.
Acadia NP - Cadillac Mtn | Acadia NP - McFarland Hill | Bethel | Bowdoinham | Cape Elizabeth | Castine | Dover-Foxcroft | Durham | Gardiner | Georgetown | Holden | Hollis | Jonesport | Kennebunkport | Kittery | Lovell | Phippsburg | Pleasant Point | Popham Beach State Park | Port Clyde | Portland-Deering Oaks Park | Presque Isle | Shapleigh | West Buxton
Acadia NP - Cadillac Mtn
Operating from 1995 to Present |
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---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
1995 | 4 | 5 | 0.094 | Aug 1 | 0.091 | Aug 10 | 0.079 | Aug 11 | 0.077 | Oct 14 |
1996 | 11 | 13 | 0.086 | June 7 | 0.083 | Aug 7 | 0.082 | June 2 | 0.082 | July 19 |
1997 | 10 | 15 | 0.095 | June 21 | 0.093 | July 1 | 0.093 | Aug 10 | 0.085 | July 7 |
1998 | 15 | 21 | 0.105 | July 14 | 0.102 | May 29 | 0.101 | July 17 | 0.094 | July 15 |
1999 | 14 | 17 | 0.107 | July 16 | 0.103 | Aug 25 | 0.098 | May 31 | 0.090 | June 25 |
2000 | 5 | 10 | 0.097 | July 3 | 0.088 | July 4 | 0.086 | Aug 9 | 0.078 | July 2 |
2001 | 18 | 23 | 0.107 | June 19 | 0.102 | July 24 | 0.101 | May 12 | 0.101 | July 23 |
2002 | 18 | 24 | 0.111 | Aug 14 | 0.106 | Aug 12 | 0.106 | Aug 13 | 0.100 | Aug 15 |
2003 | 3 | 11 | 0.103 | June 27 | 0.091 | July 8 | 0.086 | July 3 | 0.083 | June 26 |
2004 | 8 | 11 | 0.084 | April 30 | 0.083 | June 8 | 0.082 | July 1 | 0.082 | July 30 |
2005 | 10 | 15 | 0.094 | June 9 | 0.094 | June 10 | 0.088 | July 26 | 0.083 | June 25 |
2006 | 4 | 10 | 0.092 | July 16 | 0.085 | June 19 | 0.082 | July 10 | 0.080 | March 31 |
2007 | 10 | 15 | 0.097 | June 27 | 0.094 | Aug 3 | 0.089 | Sept 7 | 0.086 | Aug 30 |
2008 | 1 | 6 | 0.078 | July 8 | 0.075 | June 22 | 0.074 | April 23 | 0.074 | July 3 |
2009 | 2 | 4 | 0.085 | May 21 | 0.077 | Aug 18 | 0.075 | April 28 | 0.074 | May 22 |
2010 | 4 | 5 | 0.089 | May 2 | 0.081 | Sep 3 | 0.079 | Sep 2 | 0.076 | May 1 |
2011 | 2 | 3 | 0.092 | June 8 | 0.078 | July 21 | 0.074 | June 9 | 0.074 | July 11 |
2012 | 0 | 1 | 0.071 | Sept 14 | 0.070 | June 29 | 0.069 | April 15 | 0.066 | July 13 |
2013 | 1 | 2 | 0.078 | June 1 | 0.073 | Aug 22 | 0.069 | June 22 | 0.068 | April 29 |
2014 | 0 | 1 | 0.072 | June 30 | 0.070 | June 2 | 0.066 | Sept 5 | 0.065 | June 9 |
2015 | 2 | 2 | 0.080 | Aug 18 | 0.076 | Sept 18 | 0.072 | Sept 19 | 0.070 | May 25 |
2016 | 1 | 1 | 0.076 | July 22 | 0.064 | Aug 25 | 0.063 | April 22 | 0.060 | Mar 9 |
2017 | 5 | 6 | 0.098 | June 12 | 0.085 | April 11 | 0.082 | May 18 | 0.080 | June 11 |
2018 | 1 | 1 | 0.077 | May 2 | 0.066 | June 18 | 0.065 | April 24 | 0.064 | Aug 7 |
2019 | 0 | 1 | 0.072 | July 30 | 0.067 | July 31 | 0.064 | July 5 | 0.061 | May 17 |
2020 | 0 | 1 | 0.072 | June 27 | 0.068 | July 19 | 0.068 | Aug 10 | 0.065 | June 28 |
2021 | 2 | 3 | 0.080 | June 6 | 0.076 | June 7 | 0.072 | Aug 7 | 0.069 | May 26 |
2022 | 0 | 1 | 0.074 | July 1 | 0.068 | May 22 | 0.066 | June 26 | 0.066 | July 24 |
2023 | 0 | 0 | 0.068 | July 12 | 0.066 | June 1 | 0.065 | June 12 | 0.065 | June 29 |
Acadia NP - McFarland Hill
Operating from 1989 to Present, Relocated in 1997 |
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---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
1994 | 1 | 7 | 0.082 | July 21 | 0.075 | July 2 | 0.075 | Aug 4 | 0.075 | Aug 28 |
1995 | 11 | 14 | 0.104 | Aug 1 | 0.103 | July 5 | 0.093 | July 13 | 0.092 | June 24 |
1996 | 3 | 4 | 0.097 | Aug 6 | 0.087 | Aug 7 | 0.077 | June 2 | 0.073 | June 7 |
1997 | 4 | 7 | 0.090 | July 1 | 0.081 | Aug 10 | 0.080 | June 21 | 0.077 | July 7 |
1998 | 9 | 21 | 0.111 | July 15 | 0.110 | July 14 | 0.109 | May 29 | 0.088 | May 28 |
1999 | 9 | 12 | 0.111 | July 16 | 0.094 | May 31 | 0.093 | May 30 | 0.092 | Aug 25 |
2000 | 0 | 2 | 0.073 | June 22 | 0.073 | July 2 | 0.070 | May 18 | 0.070 | June 21 |
2001 | 15 | 20 | 0.101 | June 19 | 0.100 | Aug 2 | 0.098 | June 15 | 0.094 | July 23 |
2002 | 10 | 18 | 0.109 | Aug 13 | 0.100 | Aug 14 | 0.090 | Sept 10 | 0.089 | Aug 12 |
2003 | 5 | 7 | 0.091 | June 27 | 0.088 | June 25 | 0.084 | Aug 22 | 0.080 | July 3 |
2004 | 3 | 6 | 0.079 | April 30 | 0.077 | July 1 | 0.076 | Aug 3 | 0.073 | July 30 |
2005 | 1 | 5 | 0.083 | June 25 | 0.075 | July 26 | 0.075 | July 27 | 0.074 | June 24 |
2006 | 0 | 3 | 0.074 | March 31 | 0.072 | July 2 | 0.072 | July 10 | 0.070 | June 18 |
2007 | 9 | 11 | 0.092 | June 27 | 0.085 | July 26 | 0.083 | May 25 | 0.083 | June 26 |
2008 | 0 | 0 | 0.070 | July 3 | 0.067 | June 22 | 0.065 | July 8 | 0.064 | July 2 |
2009 | 2 | 4 | 0.086 | May 21 | 0.077 | Aug 18 | 0.073 | April 28 | 0.073 | May 22 |
2010 | 2 | 3 | 0.087 | Sep 2 | 0.077 | Sep 1 | 0.072 | May 2 | 0.070 | Sep 3 |
2011 | 0 | 1 | 0.074 | July 21 | 0.068 | July 11 | 0.066 | June 8 | 0.066 | July 17 |
2012 | 0 | 0 | 0.067 | June 29 | 0.065 | April 15 | 0.065 | July 13 | 0.060 | April 27 |
2013 | 1 | 3 | 0.079 | June 1 | 0.072 | Aug 22 | 0.071 | May 31 | 0.069 | June 22 |
2014 | 0 | 0 | 0.070 | June 9 | 0.068 | June 30 | 0.062 | April 11 | 0.062 | July 23 |
2015 | 1 | 1 | 0.076 | Sept 18 | 0.069 | June 11 | 0.068 | May 25 | 0.065 | May 16 |
2016 | 1 | 2 | 0.079 | July 22 | 0.071 | April 22 | 0.068 | July 18 | 0.066 | Aug 25 |
2017 | 2 | 2 | 0.087 | June 12 | 0.077 | May 18 | 0.068 | June 11 | 0.067 | May 17 |
2018 | 1 | 1 | 0.077 | May 2 | 0.067 | June 18 | 0.066 | April 24 | 0.064 | July 27 |
2019 | 0 | 0 | 0.067 | July 29 | 0.066 | July 31 | 0.065 | July 30 | 0.059 | Aug 3 |
2020 | 0 | 0 | 0.058 | May 22 | 0.057 | Mar 29 | 0.057 | April 19 | 0.055 | April 23 |
2021 | 0 | 2 | 0.075 | June 6 | 0.072 | June 7 | 0.063 | Mar 11 | 0.063 | June 2 |
2022 | 0 | 0 | 0.070 | July 1 | 0.069 | July 20 | 0.065 | July 24 | 0.065 | Aug 4 |
2023 | 0 | 0 | 0.068 | June 1 | 0.066 | April 13 | 0.063 | June 12 | 0.060 | May 28 |
Bethel
Operating from 2016 to Present |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
2016* | 0 | 0 | 0.062 | June 20 | 0.058 | June 27 | 0.055 | May 25 | 0.054 | May 26 |
2017 | 0 | 0 | 0.064 | June 11 | 0.063 | June 12 | 0.061 | April 10 | 0.059 | May 17 |
2018 | 0 | 0 | 0.068 | May 2 | 0.068 | May 25 | 0.066 | April 24 | 0.058 | May 9 |
2019 | 0 | 0 | 0.055 | Mar 21 | 0.055 | Mar 24 | 0.055 | Mar 28 | 0.054 | May 1 |
2020 | 0 | 0 | 0.055 | May 22 | 0.052 | April 19 | 0.051 | Feb 24 | 0.051 | May 14 |
2021 | 0 | 0 | 0.063 | June 6 | 0.059 | June 7 | 0.058 | Mar 11 | 0.058 | April 25 |
2022 | 0 | 0 | 0.055 | May 9 | 0.054 | Mar 17 | 0.054 | May 11 | 0.054 | June 7 |
2023 | 0 | 0 | 0.059 | April 14 | 0.057 | April 13 | 0.054 | May 28 | 0.053 | April 15 |
*Site did not meet 75% minimum data completeness requirement |
Bowdoinham
Operating from 2009 to 2015 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
2008 | 0 | 3 | 0.072 | July 3 | 0.072 | July 9 | 0.071 | July 8 | 0.065 | July 26 |
2009 | 0 | 0 | 0.069 | Aug 18 | 0.068 | May 21 | 0.064 | April 28 | 0.063 | April 25 |
2010 | 0 | 1 | 0.071 | Sep 2 | 0.070 | July 28 | 0.064 | Sep 1 | 0.061 | May 2 |
2011 | 0 | 0 | 0.066 | July 11 | 0.066 | July 21 | 0.063 | Aug 18 | 0.061 | July 20 |
2012 | 0 | 0 | 0.067 | July 13 | 0.065 | April 16 | 0.064 | April 15 | 0.062 | June 29 |
2013 | 0 | 1 | 0.073 | June 1 | 0.064 | Aug 22 | 0.061 | May 31 | 0.061 | Aug 21 |
2014 | 0 | 0 | 0.064 | June 30 | 0.061 | June 2 | 0.059 | April 11 | 0.058 | June 9 |
2015 | 0 | 0 | 0.062 | May 4 | 0.060 | April 13 | 0.060 | Sept 18 | 0.057 | May 25 |
Cape Elizabeth
Operating from 1982 to Present |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
1994 | 12 | 18 | 0.111 | July 21 | 0.102 | Aug 4 | 0.091 | July 20 | 0.088 | July 2 |
1995 | 9 | 14 | 0.116 | Aug 1 | 0.102 | July 14 | 0.098 | Aug 10 | 0.096 | July 13 |
1996 | 7 | 8 | 0.092 | Aug 6 | 0.090 | July 18 | 0.087 | Aug 7 | 0.083 | July 12 |
1997 | 13 | 17 | 0.118 | June 30 | 0.117 | July 1 | 0.103 | June 21 | 0.103 | Aug 10 |
1998 | 6 | 11 | 0.116 | July 14 | 0.107 | July 15 | 0.103 | May 29 | 0.089 | Aug 6 |
1999 | 4 | 9 | 0.103 | July 16 | 0.090 | May 31 | 0.081 | Aug 25 | 0.076 | July 17 |
2000 | 1 | 1 | 0.080 | July 3 | 0.069 | July 2 | 0.068 | June 1 | 0.067 | June 21 |
2001 | 12 | 12 | 0.105 | Aug 2 | 0.103 | June 19 | 0.102 | June 20 | 0.097 | July 24 |
2002 | 11 | 16 | 0.103 | Aug 13 | 0.102 | June 26 | 0.102 | Aug 14 | 0.096 | Sept 8 |
2003 | 2 | 7 | 0.084 | June 27 | 0.083 | June 25 | 0.074 | Aug 22 | 0.073 | June 26 |
2004 | 1 | 2 | 0.078 | July 30 | 0.072 | Aug 10 | 0.068 | July 1 | 0.068 | Aug 3 |
2005 | 2 | 7 | 0.083 | July 26 | 0.078 | Aug 27 | 0.073 | June 25 | 0.073 | Aug 8 |
2006 | 1 | 3 | 0.078 | July 18 | 0.074 | Aug 1 | 0.073 | July 10 | 0.070 | June 19 |
2007 | 5 | 10 | 0.099 | June 27 | 0.085 | July 26 | 0.084 | Aug 3 | 0.083 | June 26 |
2008 | 1 | 2 | 0.076 | July 3 | 0.075 | July 8 | 0.070 | July 26 | 0.069 | April 18 |
2009 | 2 | 2 | 0.085 | Aug 18 | 0.081 | May 21 | 0.070 | May 22 | 0.070 | Aug 17 |
2010 | 2 | 4 | 0.096 | Sep 2 | 0.080 | July 28 | 0.072 | July 17 | 0.072 | Sep 1 |
2011 | 1 | 3 | 0.090 | July 21 | 0.071 | July 6 | 0.071 | June 11 | 0.070 | Aug 18 |
2012 | 2 | 3 | 0.078 | Aug 3 | 0.076 | July 13 | 0.074 | June 29 | 0.066 | April 15 |
2013 | 3 | 5 | 0.081 | Sept 11 | 0.080 | June 1 | 0.077 | May 31 | 0.072 | Aug 22 |
2014 | 0 | 1 | 0.071 | July 22 | 0.067 | Aug 27 | 0.066 | June 2 | 0.066 | Sept 5 |
2015 | 0 | 1 | 0.073 | Sept 18 | 0.067 | May 26 | 0.066 | May 25 | 0.064 | May 4 |
2016 | 0 | 0 | 0.069 | July 22 | 0.067 | July 15 | 0.065 | Aug 11 | 0.065 | Aug 25 |
2017 | 1 | 2 | 0.085 | June 12 | 0.072 | May 18 | 0.066 | May 17 | 0.064 | June 11 |
2018 | 0 | 0 | 0.070 | Aug 7 | 0.068 | Aug 6 | 0.068 | July 10 | 0.067 | June 18 |
2019 | 0 | 0 | 0.070 | July 30 | 0.063 | July 29 | 0.062 | July 31 | 0.057 | July 5 |
2020 | 0 | 0 | 0.062 | June 26 | 0.059 | July 19 | 0.058 | May 22 | 0.058 | July 27 |
2021 | 1 | 3 | 0.079 | June 7 | 0.075 | June 6 | 0.073 | Aug 26 | 0.067 | Aug 7 |
2022 | 0 | 2 | 0.072 | July 1 | 0.072 | July 20 | 0.064 | July 24 | 0.062 | Aug 4 |
2023 | 0 | 0 | 0.063 | June 1 | 0.063 | July 26 | 0.059 | May 28 | 0.058 | April 14 |
Castine
Operating from 2002 to 2007 |
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Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
2002 | 7 | 9 | 0.090 | Sept 10 | 0.089 | Aug 13 | 0.085 | Aug 14 | 0.082 | Sept 8 |
2003 | 5 | 6 | 0.094 | June 27 | 0.079 | June 25 | 0.079 | July 3 | 0.076 | June 26 |
2004 | 0 | 1 | 0.072 | July 1 | 0.070 | April 19 | 0.070 | July 30 | 0.068 | June 8 |
2005 | 1 | 1 | 0.081 | June 25 | 0.070 | Aug 27 | 0.069 | July 27 | 0.068 | April 19 |
2006 | 0 | 0 | 0.069 | July 10 | 0.068 | April 12 | 0.067 | July 2 | 0.065 | June 17 |
2007 | 3 | 5 | 0.094 | June 27 | 0.079 | April 23 | 0.079 | May 25 | 0.075 | June 26 |
Dover-Foxcroft
Operating from 1998 to 2001 |
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---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.084 | 0.075 | |||||||||
1998 | 0 | 0 | 0.075 | May 1 | 0.063 | July 14 | 0.061 | May 29 | 0.061 | Aug 10 |
1999 | 1 | 1 | 0.091 | June 1 | 0.070 | June 25 | 0.067 | May 31 | 0.067 | July 15 |
2000 | 0 | 0 | 0.068 | June 16 | 0.064 | May 4 | 0.061 | Aug 23 | 0.060 | June 25 |
2001 | 2 | 2 | 0.080 | June 19 | 0.079 | May 2 | 0.068 | June 30 | 0.068 | July 24 |
Durham
Operating from 2007 to Present |
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---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
2007 | 6 | 10 | 0.092 | Aug 3 | 0.087 | April 23 | 0.086 | May 25 | 0.081 | May 10 |
2008 | 1 | 3 | 0.079 | July 9 | 0.075 | July 8 | 0.072 | April 18 | 0.070 | April 23 |
2009 | 0 | 0 | 0.068 | May 21 | 0.068 | May 22 | 0.068 | Aug 18 | 0.067 | April 25 |
2010 | 0 | 0 | 0.064 | July 28 | 0.062 | July 5 | 0.060 | May 2 | 0.058 | Sep 2 |
2011 | 0 | 0 | 0.068 | July 11 | 0.064 | June 8 | 0.063 | July 20 | 0.063 | July 21 |
2012 | 0 | 0 | 0.069 | July 13 | 0.066 | June 29 | 0.063 | Aug 9 | 0.061 | April 15 |
2013 | 0 | 0 | 0.068 | June 1 | 0.060 | April 29 | 0.059 | April 28 | 0.059 | April 30 |
2014 | 0 | 0 | 0.067 | June 30 | 0.065 | June 2 | 0.065 | July 1 | 0.065 | Sept 5 |
2015 | 0 | 0 | 0.069 | May 4 | 0.061 | Aug 3 | 0.060 | May 25 | 0.058 | April 13 |
2016 | 0 | 0 | 0.062 | Aug 25 | 0.061 | July 13 | 0.057 | June 27 | 0.056 | May 21 |
2017 | 0 | 0 | 0.070 | June 12 | 0.069 | April 11 | 0.064 | May 17 | 0.062 | June 11 |
2018 | 0 | 0 | 0.065 | May 2 | 0.063 | April 24 | 0.060 | July 5 | 0.059 | May 25 |
2019 | 0 | 0 | 0.060 | July 30 | 0.059 | July 5 | 0.052 | Mar 21 | 0.050 | Mar 9 |
2020 | 0 | 0 | 0.058 | Aug 11 | 0.054 | May 22 | 0.053 | July 19 | 0.052 | May 21 |
2021 | 0 | 0 | 0.064 | May 26 | 0.064 | June 6 | 0.062 | June 2 | 0.057 | June 5 |
2022 | 0 | 0 | 0.069 | July 1 | 0.067 | Aug 4 | 0.059 | June 26 | 0.059 | July 24 |
2023 | 0 | 0 | 0.062 | June 1 | 0.060 | June 12 | 0.058 | April 14 | 0.057 | July 13 |
Gardiner
Operating from 1991 to Present |
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---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
1994 | 5 | 6 | 0.094 | July 21 | 0.085 | Aug 4 | 0.085 | July 2 | 0.082 | Aug 9 |
1995 | 1 | 6 | 0.080 | July 13 | 0.074 | Aug 1 | 0.073 | June 2 | 0.073 | July 5 |
1996 | 5 | 5 | 0.087 | Aug 7 | 0.081 | June 2 | 0.078 | Aug 8 | 0.076 | June 12 |
1997 | 4 | 8 | 0.097 | July 1 | 0.092 | Aug 11 | 0.080 | Aug 10 | 0.076 | July 27 |
1998 | 4 | 7 | 0.095 | July 16 | 0.094 | July 15 | 0.091 | July 14 | 0.077 | July 28 |
1999 | 7 | 11 | 0.087 | Aug 25 | 0.084 | June 1 | 0.082 | May 31 | 0.080 | July 16 |
2000 | 0 | 1 | 0.075 | June 16 | 0.069 | July 2 | 0.068 | June 21 | 0.063 | July 14 |
2001 | 7 | 13 | 0.097 | June 19 | 0.091 | July 23 | 0.090 | Aug 2 | 0.084 | Sept 8 |
2002 | 9 | 12 | 0.094 | Aug 15 | 0.093 | Sept 10 | 0.090 | June 21 | 0.088 | Aug 13 |
2003 | 2 | 2 | 0.086 | June 27 | 0.079 | July 3 | 0.070 | July 8 | 0.069 | June 26 |
2004 | 1 | 4 | 0.084 | July 30 | 0.074 | April 30 | 0.071 | July 1 | 0.071 | Aug 10 |
2005 | 2 | 3 | 0.083 | July 26 | 0.079 | Aug 27 | 0.073 | June 25 | 0.070 | June 21 |
2006 | 1 | 2 | 0.076 | July 10 | 0.074 | July 25 | 0.067 | June 19 | 0.065 | June 22 |
2007 | 6 | 10 | 0.088 | Aug 3 | 0.081 | May 25 | 0.080 | June 27 | 0.079 | April 23 |
2008 | 0 | 1 | 0.071 | April 18 | 0.069 | July 3 | 0.068 | July 8 | 0.068 | July 9 |
2009 | 0 | 1 | 0.072 | Aug 18 | 0.068 | May 21 | 0.067 | April 25 | 0.066 | May 22 |
2010 | 1 | 1 | 0.079 | July 8 | 0.069 | July 28 | 0.067 | May 2 | 0.059 | Sep 1 |
2011 | 0 | 0 | 0.069 | July 11 | 0.065 | July 21 | 0.063 | June 8 | 0.063 | Aug 18 |
2012 | 0 | 0 | 0.067 | July 13 | 0.066 | April 15 | 0.064 | April 16 | 0.064 | April 20 |
2013 | 0 | 1 | 0.073 | June 1 | 0.067 | Aug 22 | 0.065 | April 29 | 0.065 | April 30 |
2014 | 0 | 0 | 0.066 | Sept 5 | 0.062 | June 30 | 0.058 | July 22 | 0.057 | June 2 |
2015 | 0 | 0 | 0.068 | May 4 | 0.064 | Aug 3 | 0.063 | April 13 | 0.063 | May 25 |
2016 | 0 | 0 | 0.065 | Aug 25 | 0.061 | July 13 | 0.059 | April 22 | 0.059 | June 27 |
2017 | 0 | 0 | 0.070 | April 11 | 0.069 | May 17 | 0.068 | June 12 | 0.067 | April 10 |
2018 | 0 | 0 | 0.067 | May 2 | 0.066 | April 24 | 0.064 | May 25 | 0.060 | July 9 |
2019 | 0 | 0 | 0.059 | July 30 | 0.056 | July 5 | 0.055 | Mar 21 | 0.054 | Mar 24 |
2020 | 0 | 0 | 0.059 | Aug 11 | 0.053 | May 21 | 0.052 | May 22 | 0.051 | April 19 |
2021 | 0 | 0 | 0.066 | June 6 | 0.064 | May 26 | 0.058 | June 2 | 0.056 | June 7 |
2022 | 0 | 0 | 0.065 | July 1 | 0.064 | Aug 4 | 0.057 | July 24 | 0.054 | Mar 18 |
2023 | 0 | 0 | 0.059 | June 1 | 0.058 | April 14 | 0.055 | June 12 | 0.055 | July 2 |
Georgetown
Operating from 2002 to 2007 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
2002 | 10 | 10 | 0.101 | Sept 10 | 0.100 | Aug 13 | 0.097 | Aug 14 | 0.096 | Sept 8 |
2003 | 3 | 5 | 0.088 | June 27 | 0.085 | June 25 | 0.079 | Aug 22 | 0.074 | June 26 |
2004 | 1 | 3 | 0.080 | July 30 | 0.074 | Aug 10 | 0.071 | June 8 | 0.069 | April 19 |
2005 | 1 | 3 | 0.079 | July 26 | 0.074 | June 25 | 0.072 | June 24 | 0.068 | Aug 5 |
2006 | 0 | 1 | 0.073 | July 10 | 0.068 | July 2 | 0.067 | July 9 | 0.065 | Aug 1 |
2007 | 5 | 9 | 0.097 | June 27 | 0.082 | June 26 | 0.079 | July 26 | 0.079 | Aug 3 |
Holden
Operating from 1993 to Present |
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---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
1994 | 2 | 4 | 0.085 | July 21 | 0.078 | July 20 | 0.075 | Aug 4 | 0.071 | May 31 |
1995 | 7 | 9 | 0.097 | July 5 | 0.088 | July 13 | 0.079 | June 2 | 0.078 | Aug 10 |
1996 | 0 | 4 | 0.073 | June 2 | 0.072 | Aug 7 | 0.072 | Aug 8 | 0.071 | May 16 |
1997 | 3 | 3 | 0.084 | July 1 | 0.077 | Aug 11 | 0.076 | Aug 10 | 0.070 | July 27 |
1998 | 4 | 4 | 0.096 | July 14 | 0.089 | July 15 | 0.080 | May 1 | 0.077 | July 16 |
1999 | 5 | 9 | 0.082 | June 1 | 0.081 | July 16 | 0.080 | May 31 | 0.080 | Aug 25 |
2000 | 0 | 2 | 0.072 | July 14 | 0.071 | Aug 9 | 0.065 | June 16 | 0.061 | June 25 |
2001 | 11 | 12 | 0.103 | June 19 | 0.092 | July 23 | 0.091 | June 20 | 0.088 | July 24 |
2002 | 7 | 9 | 0.097 | Aug 13 | 0.091 | June 21 | 0.090 | Sept 10 | 0.089 | Aug 14 |
2003 | 2 | 5 | 0.110 | June 27 | 0.076 | July 3 | 0.074 | June 25 | 0.073 | June 26 |
2004 | 1 | 2 | 0.076 | April 30 | 0.074 | June 8 | 0.067 | July 30 | 0.065 | Aug 10 |
2005 | 0 | 1 | 0.073 | June 25 | 0.069 | July 26 | 0.068 | April 17 | 0.067 | June 21 |
2006 | 0 | 1 | 0.074 | May 15 | 0.066 | June 22 | 0.065 | April 12 | 0.064 | May 26 |
2007 | 2 | 6 | 0.079 | May 25 | 0.078 | April 23 | 0.075 | May 24 | 0.074 | June 27 |
2008 | 0 | 2 | 0.072 | April 18 | 0.071 | July 3 | 0.068 | June 22 | 0.062 | July 8 |
2009 | 0 | 1 | 0.077 | May 21 | 0.064 | April 25 | 0.064 | Aug 18 | 0.057 | May 20 |
2010 | 0 | 0 | 0.067 | May 2 | 0.066 | July 28 | 0.060 | Sep 3 | 0.059 | May 3 |
2011 | 0 | 0 | 0.061 | July 21 | 0.058 | June 8 | 0.056 | April 10 | 0.055 | May 6 |
2012 | 0 | 0 | 0.066 | April 15 | 0.060 | July 13 | 0.058 | April 20 | 0.058 | June 29 |
2013 | 1 | 1 | 0.076 | June 1 | 0.065 | April 29 | 0.065 | Aug 22 | 0.064 | April 30 |
2014 | 0 | 0 | 0.059 | Sept 5 | 0.058 | June 30 | 0.056 | June 2 | 0.054 | April 11 |
2015 | 0 | 1 | 0.072 | Sept 18 | 0.063 | May 4 | 0.063 | Sept 19 | 0.061 | April 13 |
2016 | 0 | 0 | 0.062 | Aug 25 | 0.059 | April 22 | 0.057 | May 13 | 0.057 | May 21 |
2017 | 0 | 0 | 0.064 | May 18 | 0.063 | April 11 | 0.061 | April 10 | 0.060 | June 12 |
2018 | 0 | 0 | 0.069 | May 2 | 0.066 | April 24 | 0.059 | May 25 | 0.056 | April 23 |
2019 | 0 | 0 | 0.058 | July 30 | 0.055 | Mar 21 | 0.054 | July 5 | 0.054 | Aug 3 |
2020 | 0 | 0 | 0.058 | May 22 | 0.056 | May 21 | 0.056 | June 5 | 0.055 | April 19 |
2021 | 0 | 0 | 0.070 | June 6 | 0.067 | June 7 | 0.065 | May 26 | 0.062 | June 2 |
2022 | 0 | 0 | 0.066 | July 1 | 0.060 | July 24 | 0.059 | June 26 | 0.059 | Aug 4 |
2023 | 0 | 0 | 0.062 | April 13 | 0.062 | June 1 | 0.058 | May 28 | 0.057 | June 12 |
Hollis
Operating from 1997 to 1998 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
1997 | 4 | 7 | 0.104 | July 1 | 0.085 | Aug 11 | 0.080 | Aug 10 | 0.077 | July 27 |
1998 | 3 | 5 | 0.079 | July 17 | 0.078 | May 29 | 0.077 | July 16 | 0.072 | May 15 |
Jonesport
Operating from 1989 to 1995, restarted 2005 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
1994 | 4 | 8 | 0.084 | July 13 | 0.083 | Aug 10 | 0.079 | Aug 28 | 0.077 | July 21 |
1995 | 8 | 9 | 0.101 | Aug 1 | 0.091 | June 18 | 0.083 | Aug 10 | 0.082 | June 19 |
2005 | 1 | 2 | 0.089 | June 25 | 0.073 | June 24 | 0.067 | Sept 22 | 0.062 | July 27 |
2006 | 0 | 0 | 0.067 | July 2 | 0.063 | July 9 | 0.061 | Aug 14 | 0.060 | May 26 |
2007 | 4 | 4 | 0.086 | June 26 | 0.084 | June 27 | 0.078 | June 28 | 0.078 | Sept 26 |
2008 | 0 | 0 | 0.060 | June 26 | 0.060 | July 3 | 0.059 | May 8 | 0.058 | Aug 18 |
2009 | 1 | 2 | 0.084 | May 21 | 0.074 | Aug 18 | 0.066 | May 22 | 0.061 | Aug 19 |
2010 | 1 | 1 | 0.078 | Sep 2 | 0.065 | July 28 | 0.064 | July 17 | 0.061 | June 19 |
2011 | 0 | 1 | 0.072 | July 17 | 0.061 | Sept 13 | 0.058 | May 6 | 0.057 | July 6 |
2012 | 0 | 0 | 0.060 | July 13 | 0.058 | April 26 | 0.057 | April 27 | 0.057 | June 29 |
2013 | 1 | 1 | 0.079 | July 19 | 0.069 | Sept 21 | 0.066 | June 1 | 0.062 | Aug 22 |
2014 | 0 | 0 | 0.065 | June 9 | 0.060 | April 11 | 0.055 | Sept 5 | 0.054 | July 28 |
2015 | 0 | 0 | 0.067 | June 11 | 0.065 | Sept 18 | 0.064 | May 25 | 0.062 | Sept 7 |
2016 | 0 | 0 | 0.062 | July 22 | 0.058 | Mar 09 | 0.058 | May 21 | 0.057 | June 21 |
2017 | 1 | 2 | 0.084 | May 18 | 0.071 | June 11 | 0.069 | June 12 | 0.062 | June 10 |
2018 | 1 | 1 | 0.077 | May 2 | 0.067 | Aug 28 | 0.066 | Aug 7 | 0.065 | May 25 |
2019 | 0 | 0 | 0.057 | July 5 | 0.055 | Mar 15 | 0.054 | Mar 21 | 0.052 | Mar 14 |
2020 | 0 | 0 | 0.058 | May 22 | 0.054 | April 19 | 0.052 | July 19 | 0.052 | May 14 |
2021 | 0 | 0 | 0.067 | June 7 | 0.065 | Mar 11 | 0.064 | June 6 | 0.061 | June 19 |
2022 | 0 | 0 | 0.057 | July 24 | 0.053 | April 15 | 0.052 | April 16 | 0.052 | May 9 |
2023 | 0 | 0 | 0.062 | July 26 | 0.059 | May 28 | 0.057 | June 1 | 0.057 | August 5 |
Kennebunkport
Operating from 1983 to Present |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.084 | 0.075 | |||||||||
1994 | 14 | 19 | 0.114 | July 21 | 0.104 | Aug 4 | 0.096 | July 20 | 0.091 | Aug 28 |
1995 | 10 | 18 | 0.121 | Aug 1 | 0.106 | Aug 10 | 0.103 | July 13 | 0.103 | July 14 |
1996 | 7 | 9 | 0.096 | Aug 6 | 0.095 | Aug 7 | 0.094 | July 18 | 0.084 | July 12 |
1997 | 13 | 14 | 0.119 | June 30 | 0.112 | June 21 | 0.107 | June 1 | 0.101 | June 29 |
1998 | 8 | 13 | 0.112 | July 14 | 0.099 | July 15 | 0.086 | May 29 | 0.086 | Aug 5 |
1999 | 12 | 19 | 0.114 | July 16 | 0.102 | May 31 | 0.092 | Aug 25 | 0.089 | Aug 17 |
2000 | 2 | 4 | 0.089 | July 3 | 0.076 | July 2 | 0.074 | June 16 | 0.073 | June 21 |
2001 | 11 | 13 | 0.107 | Aug 2 | 0.104 | June 19 | 0.098 | July 23 | 0.096 | June 20 |
2002 | 17 | 24 | 0.120 | Aug 14 | 0.115 | Aug 13 | 0.109 | June 26 | 0.101 | Sept 8 |
2003 | 4 | 8 | 0.093 | June 25 | 0.085 | June 27 | 0.079 | Aug 21 | 0.076 | June 26 |
2004 | 4 | 4 | 0.086 | July 30 | 0.076 | July 1 | 0.076 | Aug 3 | 0.076 | Aug 10 |
2005 | 2 | 5 | 0.084 | July 26 | 0.076 | July 27 | 0.075 | June 25 | 0.071 | July 22 |
2006 | 4 | 6 | 0.082 | June 19 | 0.079 | July 18 | 0.079 | Aug 1 | 0.077 | July 10 |
2007 | 6 | 9 | 0.099 | June 27 | 0.091 | Aug 3 | 0.086 | July 26 | 0.078 | Aug 2 |
2008 | 1 | 4 | 0.080 | July 8 | 0.077 | July 3 | 0.076 | July 26 | 0.073 | Sept 4 |
2009 | 2 | 4 | 0.087 | Aug 18 | 0.077 | May 22 | 0.075 | May 21 | 0.072 | Aug 15 |
2010 | 3 | 5 | 0.095 | Sep 2 | 0.078 | Sep 1 | 0.076 | July 28 | 0.072 | July 17 |
2011 | 2 | 4 | 0.086 | July 21 | 0.076 | July 6 | 0.074 | July 23 | 0.073 | Aug 18 |
2012 | 4 | 4 | 0.082 | July 13 | 0.079 | Aug 3 | 0.079 | Aug 23 | 0.077 | June 29 |
2013 | 4 | 7 | 0.084 | Sept 11 | 0.081 | June 1 | 0.076 | May 31 | 0.076 | Aug 22 |
2014 | 0 | 2 | 0.071 | July 22 | 0.071 | July 23 | 0.068 | June 30 | 0.066 | July 8 |
2015 | 1 | 2 | 0.081 | Sept 18 | 0.072 | July 30 | 0.068 | Sept 2 | 0.067 | Aug 17 |
2016 | 0 | 2 | 0.073 | Aug 25 | 0.071 | Aug 11 | 0.069 | July 28 | 0.068 | July 21 |
2017 | 2 | 2 | 0.089 | June 12 | 0.076 | May 18 | 0.070 | May 17 | 0.067 | Aug 10 |
2018 | 1 | 2 | 0.076 | July 10 | 0.073 | Aug 7 | 0.069 | Aug 6 | 0.068 | June 18 |
2019 | 0 | 1 | 0.075 | July 30 | 0.068 | July 29 | 0.064 | July 31 | 0.060 | July 5 |
2020 | 0 | 0 | 0.066 | Aug 10 | 0.066 | July 19 | 0.063 | June 26 | 0.060 | Aug 11 |
2021 | 2 | 3 | 0.079 | Aug 26 | 0.077 | June 6 | 0.075 | June 7 | 0.070 | Aug 7 |
2022 | 1 | 2 | 0.078 | July 20 | 0.074 | July 1 | 0.066 | July 24 | 0.063 | June 26 |
2023 | 0 | 0 | 0.065 | July 26 | 0.063 | June 1 | 0.062 | July 12 | 0.061 | July 6 |
Kittery
Operating from 1995 to 2007 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
1995 | 9 | 12 | 0.107 | June 30 | 0.099 | Aug 10 | 0.094 | Aug 1 | 0.088 | July 13 |
1996 | 8 | 10 | 0.084 | July 18 | 0.081 | July 12 | 0.080 | July 8 | 0.079 | Aug 7 |
1997 | 11 | 13 | 0.112 | July 1 | 0.104 | June 30 | 0.095 | June 21 | 0.092 | June 29 |
1998 | 10 | 11 | 0.097 | Aug 5 | 0.095 | Aug 6 | 0.092 | July 16 | 0.089 | May 29 |
1999 | 9 | 13 | 0.112 | July 16 | 0.093 | Aug 25 | 0.091 | May 31 | 0.085 | June 24 |
2000 | 1 | 3 | 0.082 | July 3 | 0.073 | July 2 | 0.071 | June 16 | 0.070 | June 21 |
2001 | 9 | 14 | 0.096 | June 15 | 0.096 | June 19 | 0.090 | June 20 | 0.090 | Aug 2 |
2002 | 15 | 20 | 0.112 | Aug 14 | 0.110 | Aug 13 | 0.107 | Aug 12 | 0.094 | June 21 |
2003 | 7 | 10 | 0.090 | June 25 | 0.086 | June 27 | 0.083 | Aug 21 | 0.080 | April 15 |
2004 | 4 | 7 | 0.100 | July 30 | 0.083 | July 22 | 0.081 | Aug 3 | 0.080 | July 23 |
2005 | 2 | 6 | 0.077 | June 25 | 0.077 | Aug 8 | 0.072 | June 24 | 0.072 | July 27 |
2006 | 1 | 2 | 0.082 | June 19 | 0.072 | June 18 | 0.070 | July 15 | 0.069 | July 25 |
2007 | 4 | 5 | 0.080 | Sept 7 | 0.076 | May 25 | 0.076 | July 26 | 0.076 | Aug 3 |
Lovell
Operating from 1992 to 2015 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
1994 | 2 | 2 | 0.085 | May 31 | 0.076 | Aug 4 | 0.067 | July 5 | 0.066 | June 11 |
1995 | 1 | 2 | 0.088 | July 5 | 0.075 | July 6 | 0.062 | July 14 | 0.061 | May 5 |
1996 | 1 | 1 | 0.083 | June 2 | 0.068 | April 20 | 0.064 | May 16 | 0.059 | Aug 8 |
1997 | 0 | 0 | 0.061 | April 16 | 0.060 | July 1 | 0.058 | April 30 | 0.057 | May 1 |
1998 | 0 | 1 | 0.075 | May 1 | 0.062 | April 15 | 0.062 | April 14 | 0.060 | May 15 |
1999 | 1 | 1 | 0.076 | June 1 | 0.065 | July 17 | 0.061 | May 31 | 0.061 | June 12 |
2000 | 0 | 0 | 0.065 | May 4 | 0.058 | May 5 | 0.057 | April 17 | 0.055 | May 7 |
2001 | 1 | 2 | 0.077 | May 2 | 0.072 | May 3 | 0.069 | May 10 | 0.068 | May 12 |
2002 | 1 | 1 | 0.085 | Aug 15 | 0.067 | May 6 | 0.064 | Aug 12 | 0.060 | Sept 10 |
2003 | 0 | 1 | 0.071 | April 15 | 0.064 | June 29 | 0.063 | April 28 | 0.059 | July 3 |
2004 | 0 | 0 | 0.068 | July 22 | 0.067 | May 1 | 0.066 | April 30 | 0.063 | April 19 |
2005 | 0 | 1 | 0.071 | April 17 | 0.070 | April 20 | 0.067 | Aug 27 | 0.061 | June 25 |
2006 | 0 | 0 | 0.062 | April 12 | 0.061 | May 26 | 0.056 | April 30 | 0.055 | April 19 |
2007 | 1 | 4 | 0.084 | May 25 | 0.075 | April 23 | 0.074 | May 9 | 0.074 | May 10 |
2008 | 0 | 0 | 0.065 | April 19 | 0.064 | April 18 | 0.063 | April 23 | 0.059 | May 8 |
2009 | 0 | 0 | 0.060 | April 25 | 0.060 | May 22 | 0.059 | May 21 | 0.057 | May 4 |
2010 | 0 | 0 | 0.056 | April 22 | 0.054 | March 7 | 0.054 | April 3 | 0.054 | April 4 |
2011 | 0 | 0 | 0.061 | April 10 | 0.060 | May 7 | 0.054 | April 3 | 0.054 | April 9 |
2012 | 0 | 0 | 0.066 | April 20 | 0.062 | April 16 | 0.060 | May 20 | 0.056 | April 15 |
2013 | 0 | 0 | 0.056 | April 27 | 0.053 | May 1 | 0.053 | May 7 | 0.052 | March 31 |
2014 | 0 | 0 | 0.067 | June 3 | 0.056 | April 22 | 0.056 | May 12 | 0.053 | April 21 |
2015 | 0 | 0 | 0.067 | May 4 | 0.059 | May 24 | 0.058 | April 13 | 0.053 | May 7 |
Phippsburg
Operating from 1993 to 2000 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
1994 | 14 | 20 | 0.101 | July 21 | 0.101 | Aug 4 | 0.092 | July 2 | 0.090 | July 1 |
1995 | 15 | 20 | 0.126 | July 14 | 0.125 | Aug 1 | 0.104 | July 13 | 0.099 | June 18 |
1996 | 12 | 17 | 0.097 | Aug 6 | 0.092 | July 18 | 0.089 | June 7 | 0.089 | Aug 7 |
1997 | 11 | 12 | 0.116 | June 30 | 0.111 | July 1 | 0.102 | June 21 | 0.098 | Aug 10 |
1998 | 8 | 15 | 0.116 | July 14 | 0.109 | May 29 | 0.104 | July 15 | 0.091 | Aug 5 |
1999 | 11 | 13 | 0.108 | July 16 | 0.091 | July 17 | 0.089 | May 31 | 0.087 | July 23 |
2000 | 3 | 8 | 0.087 | July 3 | 0.082 | Aug 9 | 0.078 | July 2 | 0.075 | June 1 |
Pleasant Point
Operating from 2023 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
2023 | 0 | 0 | 0.056 | July 13 | 0.053 | May 28 | 0.051 | June 12 | 0.050 | June 1 |
Popham Beach State Park
Operating from 2023 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
2023 | 0 | 0 | 0.070 | July 26 | 0.063 | May 28 | 0.063 | June 1 | 0.062 | July 14 |
Port Clyde
Operating from 1992 to Present |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
1994 | 8 | 14 | 0.096 | July 21 | 0.094 | Aug 4 | 0.086 | Aug 28 | 0.085 | July 13 |
1995 | 12 | 12 | 0.115 | Aug 1 | 0.114 | July 14 | 0.099 | June 18 | 0.090 | June 19 |
1996 | 7 | 8 | 0.099 | Aug 6 | 0.085 | Aug 7 | 0.082 | July 18 | 0.081 | July 19 |
1997 | 6 | 10 | 0.109 | June 30 | 0.100 | July 1 | 0.099 | Aug 10 | 0.090 | June 17 |
1998 | 5 | 9 | 0.102 | July 14 | 0.092 | July 15 | 0.092 | May 29 | 0.077 | Sept 27 |
1999 | 7 | 8 | 0.110 | July 16 | 0.100 | July 17 | 0.083 | May 31 | 0.081 | May 30 |
2000 | 2 | 3 | 0.084 | Aug 9 | 0.081 | July 3 | 0.072 | June 22 | 0.070 | Aug 8 |
2001 | 14 | 18 | 0.111 | Aug 2 | 0.099 | June 19 | 0.093 | July 24 | 0.091 | June 30 |
2002 | 11 | 12 | 0.097 | Aug 14 | 0.095 | Sept 8 | 0.092 | Sept 10 | 0.088 | Sept 9 |
2003 | 9 | 11 | 0.107 | Aug 22 | 0.085 | June 25 | 0.085 | June 27 | 0.082 | July 26 |
2004 | 0 | 4 | 0.075 | July 30 | 0.074 | April 19 | 0.074 | June 8 | 0.074 | June 9 |
2005 | 3 | 7 | 0.102 | June 25 | 0.080 | June 24 | 0.076 | July 25 | 0.075 | July 26 |
2006 | 0 | 5 | 0.080 | July 2 | 0.080 | July 14 | 0.073 | Aug 1 | 0.072 | July 18 |
2007 | 6 | 6 | 0.096 | June 27 | 0.093 | June 26 | 0.085 | May 25 | 0.082 | July 26 |
2008 | 0 | 0 | 0.068 | July 3 | 0.061 | May 8 | 0.061 | July 8 | 0.061 | Sept 4 |
2009 | 2 | 3 | 0.085 | May 21 | 0.085 | Aug 18 | 0.072 | May 22 | 0.069 | Aug 17 |
2010 | 2 | 3 | 0.092 | Sep 2 | 0.076 | July 17 | 0.075 | July 28 | 0.070 | Sep 1 |
2011 | 0 | 3 | 0.075 | July 21 | 0.072 | July 17 | 0.071 | July 11 | 0.068 | July 22 |
2012 | 0 | 0 | 0.069 | July 13 | 0.067 | Aug 3 | 0.062 | June 29 | 0.062 | July 17 |
2013 | 4 | 5 | 0.082 | July 19 | 0.077 | May 31 | 0.076 | June 1 | 0.076 | Sept 11 |
2014 | 0 | 0 | 0.066 | Aug 27 | 0.064 | July 22 | 0.062 | July 23 | 0.062 | Sept 5 |
2015 | 1 | 1 | 0.076 | Sept 18 | 0.070 | June 11 | 0.070 | Sept 7 | 0.067 | May 25 |
2016 | 0 | 1 | 0.077 | July 22 | 0.068 | July 15 | 0.065 | Aug 11 | 0.063 | Aug 25 |
2017 | 2 | 3 | 0.083 | May 18 | 0.081 | June 12 | 0.071 | June 11 | 0.062 | June 10 |
2018 | 0 | 1 | 0.074 | May 2 | 0.069 | July 10 | 0.067 | Aug 6 | 0.064 | Aug 7 |
2019 | 0 | 0 | 0.065 | Sept 22 | 0.063 | July 31 | 0.063 | July 30 | 0.059 | Aug 2 |
2020 | 0 | 0 | 0.061 | July 20 | 0.060 | July 19 | 0.060 | Aug 21 | 0.059 | July 27 |
2021 | 1 | 2 | 0.076 | June 6 | 0.072 | June 7 | 0.070 | Aug 26 | 0.064 | Mar 11 |
2022 | 0 | 0 | 0.064 | July 20 | 0.063 | July 1 | 0.061 | July 24 | 0.056 | May 30 |
2023 | 0 | 0 | 0.066 | July 26 | 0.063 | May 28 | 0.060 | June 1 | 0.056 | May 12 |
Portland-Deering Oaks Park
Operating from 2023 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
2023 | 0 | 0 | 0.058 | June 1 | 0.054 | April 14 | 0.053 | July 2 | 0.052 | May 28 |
Presque Isle
Operating from 2023 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
2023 | 0 | 0 | 0.056 | April 13 | 0.053 | May 28 | 0.052 | June 1 | 0.052 | June 13 |
Shapleigh
Operating from 2009 to Present |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
2008 | 0 | 0 | 0.061 | July 26 | 0.060 | July 3 | 0.060 | July 9 | 0.057 | June 22 |
2009 | 0 | 0 | 0.070 | May 22 | 0.066 | May 21 | 0.065 | April 25 | 0.063 | April 28 |
2010 | 0 | 1 | 0.072 | May 2 | 0.071 | July 28 | 0.067 | Sep 1 | 0.066 | Sep 3 |
2011 | 0 | 1 | 0.072 | July 11 | 0.066 | July 20 | 0.064 | June 8 | 0.064 | July 21 |
2012 | 0 | 1 | 0.074 | July 13 | 0.070 | April 16 | 0.069 | April 20 | 0.065 | July 12 |
2013 | 0 | 0 | 0.069 | April 29 | 0.067 | April 28 | 0.067 | April 30 | 0.064 | June 1 |
2014 | 0 | 0 | 0.068 | June 3 | 0.066 | June 17 | 0.062 | May 12 | 0.061 | April 22 |
2015 | 0 | 1 | 0.073 | May 4 | 0.064 | May 25 | 0.063 | April 13 | 0.062 | May 24 |
2016 | 0 | 0 | 0.066 | June 20 | 0.066 | July 13 | 0.061 | April 22 | 0.061 | July 1 |
2017 | 0 | 0 | 0.067 | April 11 | 0.066 | April 10 | 0.064 | May 17 | 0.064 | June 12 |
2018 | 0 | 0 | 0.070 | May 2 | 0.070 | May 25 | 0.068 | April 24 | 0.060 | May 31 |
2019 | 0 | 0 | 0.065 | July 30 | 0.057 | Mar 24 | 0.057 | Sept 22 | 0.056 | June 15 |
2020 | 0 | 0 | 0.060 | Aug 11 | 0.057 | May 22 | 0.056 | July 19 | 0.053 | Feb 24 |
2021 | 0 | 1 | 0.071 | June 6 | 0.062 | June 2 | 0.061 | Mar 11 | 0.060 | June 5 |
2022 | 0 | 0 | 0.067 | July 28 | 0.063 | July 1 | 0.058 | July 24 | 0.057 | Mar 18 |
2023 | 0 | 0 | 0.064 | April 14 | 0.062 | April 13 | 0.062 | June 12 | 0.057 | May 31 |
West Buxton
Operating from 1999 to Present |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Year | # Days > | 1st High (ppm) | Date | 2nd High (ppm) | Date | 3rd High (ppm) | Date | 4th High (ppm) | Date | |
0.075 | 0.070 | |||||||||
1999 | 5 | 9 | 0.085 | June 1 | 0.084 | Aug 25 | 0.083 | July 30 | 0.080 | July 17 |
2000 | 0 | 1 | 0.075 | June 16 | 0.069 | June 21 | 0.067 | June 25 | 0.066 | June 1 |
2001 | 1 | 4 | 0.097 | June 19 | 0.074 | Aug 16 | 0.074 | Sept 8 | 0.072 | June 14 |
2002 | 8 | 10 | 0.100 | Aug 14 | 0.095 | Aug 12 | 0.086 | Aug 15 | 0.083 | Aug 13 |
2003 | 3 | 3 | 0.081 | April 15 | 0.080 | July 3 | 0.077 | June 29 | 0.069 | June 27 |
2004 | 3 | 7 | 0.082 | July 22 | 0.077 | April 30 | 0.076 | April 19 | 0.075 | June 8 |
2005 | 4 | 7 | 0.082 | Aug 27 | 0.080 | April 20 | 0.079 | Sept 14 | 0.076 | Aug 10 |
2006 | 0 | 3 | 0.075 | June 19 | 0.073 | July 27 | 0.071 | June 18 | 0.069 | July 26 |
2007 | 5 | 7 | 0.084 | May 10 | 0.082 | May 25 | 0.082 | Aug 30 | 0.081 | April 23 |
2008 | 0 | 1 | 0.075 | April 23 | 0.070 | April 18 | 0.063 | April 19 | 0.061 | May 26 |
2009 | 0 | 0 | 0.070 | April 25 | 0.069 | May 22 | 0.068 | May 21 | 0.062 | April 28 |
2010 | 0 | 0 | 0.070 | July 28 | 0.058 | April 22 | 0.058 | June 19 | 0.058 | Sep 1 |
2011 | 0 | 0 | 0.062 | July 20 | 0.061 | June 8 | 0.060 | July 17 | 0.059 | May 7 |
2012 | 1 | 2 | 0.077 | July 13 | 0.075 | April 16 | 0.069 | April 20 | 0.065 | July 12 |
2013 | 0 | 0 | 0.066 | April 30 | 0.065 | April 28 | 0.065 | April 29 | 0.063 | June 1 |
2014 | 0 | 0 | 0.062 | June 17 | 0.061 | June 2 | 0.061 | July 22 | 0.059 | May 12 |
2015 | 0 | 0 | 0.068 | May 4 | 0.063 | Aug 3 | 0.059 | May 25 | 0.058 | April 13 |
2016 | 0 | 0 | 0.067 | July 13 | 0.061 | June 27 | 0.058 | May 21 | 0.058 | July 1 |
2017 | 0 | 0 | 0.070 | April 11 | 0.067 | April 10 | 0.065 | May 17 | 0.063 | June 11 |
2018 | 0 | 0 | 0.067 | May 2 | 0.067 | May 25 | 0.065 | April 24 | 0.056 | May 31 |
2019 | 0 | 0 | 0.058 | July 30 | 0.055 | Mar 24 | 0.053 | Mar 21 | 0.053 | April 14 |
2020 | 0 | 0 | 0.065 | Aug 11 | 0.055 | May 22 | 0.051 | May 21 | 0.051 | April 19 |