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Chart For Hardness Click for parameter information.

Select one or more stations to see the result history for Hardness. If you wish, a date range can be entered to limit the data results.

Date display range

Data is made available for samples taken as early as 2003. Please note that in some cases, less data may be available.
Last Sample
Saint John River below Hartland, Route 105 2024-10-29 10:58
Saint John River below St. Basile, Route 144 2024-10-29 14:11
Magaguadavic River St. George, Route 770 2024-10-22 11:53
Saint John River below Mactaquac Dam, Route 102 2024-09-09 10:39
Petitcodiac River, bridge below Petitcodiac 2024-10-29 11:55
Jacquet River above bridge, Route 11 2024-10-30 17:09
Restigouche River below Montgomery bridge, Route 265 2024-10-30 14:42
Saint John River near Limestone above bridge off Route 105 2024-10-29 13:07
Northwest Miramichi River below Wayerton bridge, Route 430 2024-10-23 14:43
Richibucto River above Smiths Corner bridge, Route 116 2024-09-16 11:12
Pokemouche River above bridge, Route 135 2024-10-31 10:11
Southwest Miramichi River above Doaktown bridge, Route 8 (B) 2024-10-23 11:15
Big Tracadie River at Murchie crossing 2013-07-17 13:15
Little Southwest Miramichi River at Sillikers (A) 2012-12-06 12:00
Upsalquitch River above Robinsonville bridge, Route 17 2024-10-30 15:36
Big Salmon River mouth 2024-10-25 11:37
Cains River mouth 2024-10-23 12:15
Nepisiguit River below bridge, Route 360 2024-10-31 09:22
Salmon River above Chipman train bridge, Route 123 (A) 2017-06-05 10:15
Saint John River near Northampton, Route 105 2024-10-29 10:30
Big Presque Isle Stream above bridge, Route 103 2024-10-29 11:45
Digdeguash River near Dominion Hill 2024-10-22 11:24
Oromocto River above bridge, Route 102 2024-09-09 13:42
Nigadoo River above bridge, Route 134 2024-10-30 17:39
Keswick River above bridge, Route 105 (A) 2012-11-15 13:20
Kennebecasis River above Bloomfield bridge 2024-10-25 14:05
Southwest Miramichi River above Porter Brook bridge 2024-10-23 09:50
Tabusintac River above bridge, Route 8 2024-10-31 11:10
Hammond River above French Village bridge, Route 860 2024-10-25 13:10
Saint John River above Grand Falls dam, Grand Falls 2024-10-29 13:30
Aroostook River above bridge, Route 2 2024-10-29 12:32
St. Croix River above Milltown bridge, Route 170 2024-10-22 10:47
Northwest Miramichi River near Exmoor above bridge, Route 425 2024-10-23 14:20
Tobique River below Arthurette bridge, Route 109 2024-10-30 11:36
Southwest Miramichi River above Blackville bridge, Route 118 2024-10-23 12:39
Renous River below Renous bridge, Route 8 2024-10-23 13:05
Southwest Miramichi River below Quarryville bridge, Route 108 2024-10-23 13:18
Canaan River below bridge, Route 112 2024-10-29 10:53
Kennebecasis River above Five Points bridge, Route 1 2024-10-29 12:21
Eel River near Scotts Siding 2015-07-28 12:00
Keswick River Below Burtts Corner, Route 104 (B) 2024-09-09 10:18
Saint John River below Upper Queensbury, Route 105 2024-10-29 09:45
Saint John River below Florenceville, Route 105 2024-10-29 11:21
Tobique River above Riley Brook bridge, Route 385 2024-10-30 12:23
Saint John River Lower Burton, Route 102 2024-09-09 13:22
Southwest Miramichi River below Doaktown (A) 2014-12-01 12:00
Kedgwick River near mouth 2024-10-30 14:25
Southwest Miramichi River above Deersdale, Route 107 (B) 2024-09-04 09:45
Lepreau River above bridge, Route 780 2024-10-22 12:24
St. Croix River below St. Croix bridge, Route 4 2024-10-22 09:54
Saint John River Evandale, Route 102 2024-09-09 12:10
Southwest Miramichi River below Deersdale, Route 107 (A) 2013-05-22 09:45
Saint John River Lower Lincoln, Route 102 2024-09-09 13:50
Nashwaak River above Marysville bridge, Route 8 2024-09-09 09:45
Buctouche River above bridge, Route 490 2024-09-16 12:00
Petitcodiac River above Salisbury bridge, Route 112 2024-10-29 11:30
Canaan River near Canaan Rapids, Route 112 2024-10-29 10:19
Restigouche River Rafting Grounds, Route 134 2024-10-30 16:12
South Branch Kennebecasis River above Penobsquis bridge 2024-10-29 12:32
Madawaska River above Fraser Dam, Edmundston 2024-10-29 14:29
Little Southwest Miramichi River at Lyttleton Bridge (B) 2024-10-23 13:45
Salmon River from bridge, Route 123 (B) 2024-09-16 10:14

For information about water quality for aquatic life at these stations, please consult the current Water Quality index values.

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