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Environment and Food
Dataset
This data set provides pesticide sample analyses results for drinking water samples for the province’s Pesticide Monitoring Program.
Over 100 wells are monitored annually, with samples being collected in drinking water wells of private homes, schools, municipalities, and seniors’ housing facilities. Sampling of the wells is conducted each January/February by Departmental staff. The samples are sent to a laboratory in New Brunswick for analysis. The purpose of the program is to monitor the environment for the presence of pesticide residues.
To create a long-term record of pesticide detections in drinking water, the same sites are sampled each year. Individual site locations are not listed to respect the privacy of the individuals involved, as this is a voluntary program for all participants. Public buildings (e.g., schools and seniors’ housing) are identified. The non-public building sites are listed as letter/number combinations (e.g. A1, AA, FFF, etc.) The designations remain consistent for each site from year to year.
The dataset also includes chemistry analyses for the sites. Additional water samples were collected at the same time as the pesticide sampling, which were then analyzed at the PEI Analytical Laboratory for various chemistry parameters. Users should note that the parameters analysed and the lab detection limits for these chemistry samples/results may vary from year to year. Chemistry sampling ceased after the 2013 sampling year.
Results with a "<" represent values below the lab's reporting limit. Such results do not confirm the presence nor the absence of a pesticide compound below that level.
Safe Drinking Water Limits (Pesticides)
The pesticide data also includes a safe drinking water limit (if one is available). The four sources of safe drinking water limits are listed below:
Canadian Drinking Water Quality Guideline Value
Health Canada Guidance Value
USEPA Pesticide Tolerance Level
Guidance value not available, Health Canada has indicated detected levels are below levels of concern
Only compounds that have been detected through the monitoring program or which have a Canadian Drinking Water Guideline Value have a safe drinking water limit value listed.
Some of the guideline values have been converted from the published units of ug/L to ng/ml in order to compare the guideline values to the results.
Health Canada provides The Guidelines for Canadian Drinking Water Quality (link is external).
Chemistry Samples
The chemistry results were compiled from three different databases, and may utilize different parameters and units/limits:
results previous to 2009
results between 2010 and 2012
results after June 2012
Tags drinking water monitoring pesticide
API Docs
Updated
September 21 2023
Views
2,259

Environment and Food
Dataset
Groundwater level search results include data from 14 groundwater level observation wells across PEI; mapped locations of observation wells; graphs; and downloadable raw data. The groundwater level data provides long-term trend information, both historical and real-time, on groundwater levels.
Tags drinking water groundwater monitoring water
API Docs
Updated
August 24 2023
Views
3,267

Environment and Food
Dataset
Data collected from the Mussel Monitoring Program. Information includes date collected, year, month, water temperature, mussel larvae concentration, mussel larvae minimum size, mussel larvae maximum size, mussel larvae pre set size (%), mussel larvae set size (%), Pseudo nitzschia cells), tunicate larvae - Ciona, tunicate larvae - Styela, Tunicate Larvae – Botryllus, Tunicate Larvae – Botrylloides.
Tags aquaculture monitoring mussel
API Docs
Updated
May 17 2019
Views
1,116

Environment and Food
Dataset
This Data set provides detailed information about the quality of drinking water. The application provides a summary of the on-going testing of drinking water done by the Prince Edward Island Analytical Laboratories.
The summary results will show values for the following parameters: alkalinity, cadmium, calcium, chloride, chromium, iron, magnesium, manganese, nickel, nitrate, pH, phosphorus, potassium, sodium, and sulfate.
Tags drinking water groundwater monitoring quality water
API Docs
Updated
February 3 2023
Views
3,822

Environment and Food
Dataset
This data set provides pesticide sample analyses results for stream sediment samples for the province’s Pesticide Monitoring Program. The sampling includes sampling a total of nine rivers across PEI, with three of the rivers being sampled each year.
Sediment samples are collected once in July, twice in August (once during a normal/dry weather and once during wet weather), and once in September. The two samples in July and September are collected during dry weather.
Sediment sampling involves Department staff collecting sediment from the stream bed of the site, using a small shovel. Samples are then sent to a laboratory for analysis.
These samples are collected in the same rivers as the Stream Water and the Finfish/Shellfish Pesticide datasets.
Tags monitoring pesticide sediment stream
API Docs
Updated
September 19 2023
Views
1,148

Environment and Food
Dataset
Information collected from the Oyster Monitoring Program. Information includes sample collection site, date, time, water temperature, total oyster larvae, concentration, size range and larvae > 250.
In the concentration L=Low M=Medium H=High V=Very High
Tags aquaculture fisheries monitoring oyster
API Docs
Updated
August 8 2018
Views
715

Environment and Food
Dataset
This data set provides pesticide sample analyses results for finfish (brook and rainbow trout) and shellfish (mussels and soft shell clams) for the province’s Pesticide Monitoring Program. The sampling includes a total of nine rivers that are tested across PEI, with three of the rivers being sampled each year.
Finfish are collected from the river by electrofishing or rod and reel. Shellfish are collected from the same river systems manually, as close to the finfish sampling as possible. The purpose of the sampling is to determine if pesticide residues accumulate in the fish/shellfish.
Tags finfish monitoring pesticide shellfish stream
API Docs
Updated
April 30 2019
Views
991

Environment and Food
Dataset
Stream flow data are available for a number of streams across the province. New Stream flow data is available from June through September. Those who hold a Water Withdrawal for Irrigation Purposes Permit can use this tool to confirm the water flow in Island streams, and to determine whether they may legally draw water for irrigation purposes.
Tags brook creek irrigation monitoring river and 1 more
API Docs
Updated
December 5 2023
Views
1,111

Environment and Food
Dataset
The province of PEI has been monitoring dissolved oxygen in some Island estuaries since 2015. This dataset contains data collected from 2015 to 2021. Monitoring results from later years can also be found on the Prince Edward Island open data portal.
This dataset includes raw data from 20 Island estuaries from across PEI; mapped locations of monitoring sites; and downloadable raw data. The data includes dissolved oxygen concentration, dissolved oxygen saturation, water temperature and instrument depth. Data is usually collected between May and October of each year. 18 estuaries are monitored on a 3 year rotating cycle with at least 6 of these 18 monitored in any given year. Another 2 estuaries are monitored every year. 2 locations are monitored in each estuary; the Upper Estuary location represents the upper 10% boundary of the estuary’s surface area, is closest to the freshwater inputs and should display signs of eutrophication if they are present; the Mid Estuary location represents the mid-point or 50% boundary of the surface area of the estuary. The Mid Estuary site may have two loggers, one placed about 0.5 m the bottom substrate and one placed about 0.5 m from the surface of the water. Data may be used to determine hourly fluctuations in oxygen, the degree of eutrophication, and the presence and duration of anoxia and hypoxia. Temperature and instrument depth (not the same as water depth at the site) data are also collected and available for use.
Tags depth dissolved oxygen estuary monitoring surface water and 2 more
API Docs
Updated
February 27 2023
Views
331

Environment and Food
Dataset
The province of PEI has been monitoring dissolved oxygen in some Island estuaries since 2015. This dataset contains data collected in 2022. Monitoring results from earlier years can also be found on the Prince Edward Island open data portal.
This dataset includes raw data from 20 Island estuaries from across PEI; mapped locations of monitoring sites; and downloadable raw data. The data includes dissolved oxygen concentration, dissolved oxygen saturation, water temperature and instrument depth. Data is usually collected between May and October of each year. 18 estuaries are monitored on a 3 year rotating cycle with at least 6 of these 18 monitored in any given year. Another 2 estuaries are monitored every year. 2 locations are monitored in each estuary; the Upper Estuary location represents the upper 10% boundary of the estuary’s surface area, is closest to the freshwater inputs and should display signs of eutrophication if they are present; the Mid Estuary location represents the mid-point or 50% boundary of the surface area of the estuary. The Mid Estuary site may have two loggers, one placed about 0.5 m the bottom substrate and one placed about 0.5 m from the surface of the water. Data may be used to determine hourly fluctuations in oxygen, the degree of eutrophication, and the presence and duration of anoxia and hypoxia. Temperature and instrument depth (not the same as water depth at the site) data are also collected and available for use.
Tags depth dissolved oxygen estuary monitoring surface water and 2 more
API Docs
Updated
February 27 2023
Views
172