USGS Water-Year Summary 2023

475850091583501 CDN-07 Camp du Nord 7 0000656526

Other aquifers
Precambrian Erathem

LOCATION - Lat 47°58'49.73", long 91°58'35.40" referenced to North American Datum of 1983, St. Louis County, MN, Hydrologic Unit 09030001, The well is located at the YMCA Camp du Nord in between North Arm Rd. and Burntside Lake, behind "The Den" building. The well is located approximately 3.3 miles southwest of the intersection of North Arm Rd. and Co. Rd. 116 (Echo Trail).

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 525 ft. Upper casing diameter undefined; top of first opening undefined, bottom of last opening undefined. Well CDN-07 is a community water supply well that was drilled on 06 June 2001 with an 10-inch diameter, air-rotary, and driven drill rig to 325 feet. Originally, the well was constructed with a 6-inch-diameter, open hole (no well screen), with length/s of 6-inch-diameter, schedule-40 steel well casing. Well re-drilled in 2014 (unknown date) with an unknown diameter, unknown drill-rig type to 525 feet. The well is currently constructed with a 6-inch-diameter, open hole (no well screen), with length/s of 6-inch-diameter, schedule-40 steel well casing. The well pump was also lowered to a depth of 480 ft in 2014. The well casing measuring point (stickup) was 1.55 feet (1390.55 ft. NAVD88, +/- 1.6 ft.) above land surface when measured on 11 Mar. 2020. The open interval of the well is currently between 16.7 and 518.9 feet below land surface and the total well depth is 518.9 feet below land surface (according to MGS video inspection on 11/5/19).

DATUM - Land-surface datum is 1,389 ft above North American Vertical Datum of 1988. Measuring point: Black mark on top of 6-inch diameter well casing. Remove well cap to access MP1, 1.55 ft above land-surface datum, Mar. 11, 2020 to present. The measuring point is a black mark on top of the 6-inch diameter steel well casing, which was 1.55 feet above land surface on 11 Mar. 2020. Elevation of the measuring point is 1390.55 plus-or-minus 1.6 feet above sea level, North American Vertical Datum of 1988, based on Digital Elevation Model (DEM) data.

PERIOD OF RECORD -

Water levels were recorded periodically from 11 March 2020 to 16 November 2021. Water levels were recorded hourly from 11 March 2020 at 12:00 CDT to 12 March 2020 at 04:00 CDT. Water levels were recorded quarter-hourly from 12 March 2020 at 04:15 CDT to 16 November 2021 at 14:00 CST, except during the following periods:

25 Dec. 2020 at 01:00 CST - 03 Jan. 2021 at 13:15 CST: due to dead station battery.
04 Jan. 2021 at 05:00 CST - 03 Jan. 2021 at 04:30 CST: due to dead station battery.
04 Jan. 2021 at 23:00 CST - 05 Jan. 2021 at 11:45 CST: due to dead station battery.
07 Jan. 2021 at 00:00-09:15 CST: due to dead station battery.
08 Jan. 2021 at 05:15-09:00 CST: due to dead station battery.
10 Jan. 2021 at 05:00-10:00 CST: due to dead station battery.
11 Jan. 2021 at 21:00 CST - 12 Jan. 2021 at 13:15 CST: due to dead station battery.
12 Jan. 2021 at 18:45 CST - 13 Jan. 2021 at 11:30 CST: due to dead station battery.
14 Jan. 2021 at 05:00-09:45 CST: due to dead station battery.
16 Jan. 2021 at 19:00 CST - 29 Jan. 2021 at 14:00 CST: due to dead station battery.
29 Jan. 2021 at 15:45 CST - 02 Feb. 2021 at 16:00 CST: due to dead station battery.

GAGE -

Water level and water temperature were measured with a Campbell Scientific, Inc. CS451, 0-67.0 ft. range, submersible pressure transducer nominally accurate to 0.01 feet and 0.1°C, respectively. Water level, water temperature, shelter temperature, and battery voltage were all recorded by a Campbell Scientific, Inc. CR300 data logger, which recorded all data quarter-hourly. The data logger was housed in a 14-inch X 16-inch grey fiberglass shelter attached to 10 ft. tall, 1.25-inch diameter steel mast. The gage was powered by one 20W solar panel and a 12v, 35amphr battery. Data were telemetered by an Sierra Wireless RV50X cellular modem with a Proxicast 9/11 dBi ultra broadband LPDA high gain band fixed mount directional antenna. Verizon Wireless SIM card.

An unheated Texas Electronic Inc. TR-525-I-01 rain gage was added to the station during 16 Apr. 2020 at 10:30 CDT to 16 November 2021 at 14:00 CST. The rain gage is mounted on an arm that was attached to solar panel mast, and wired into the CR300 datalogger inside the shelter. The datalogger recorded quarter-hourly rainfall data. Rain gage was nominally accurate to 0.01 inches.

The original Campbell Scientific, Inc. CS451, 0-33.4 ft. range, submersible pressure transducer did not have a large enough measurement range for this well. This transducer was replaced with a brand new Campbell Scientific, Inc. CS451, 0-67.0 ft. range, submersible pressure transducer on 16 Apr. 2020 at 09:00 CDT. This transducer was hung deeper in the well (66.8 ft. BLS) compared to the previous Campbell Scientific, Inc. CS451, 0-33.4 ft. range pressure transducer.

All monitoring equipment was removed from the site on 16 Nov. 2021 at 14:00 CST. This site has been discontinued for the USGS/MDH Pathogens study.

COOPERATION - This site was operated from 11 March 2020 to 16 November 2021 by the U.S. Geological Survey as a monitoring well for the USGS/MDH Automated Virus Sampler Study. The USGS/MDH Automated Virus Sampler study was a collaborative study between the Minnesota Dept. of Health and the U.S. Geological Survey.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD -

Precipitation data were recorded quarter-hourly from 16 April 2020 at 10:30 CDT to 16 November 2021 at 14:00 CST, except during the following periods:

25 Dec. 2020 at 01:00 CST - 03 Jan. 2021 at 13:15 CST: due to dead station battery.
04 Jan. 2021 at 05:00 CST - 03 Jan. 2021 at 04:30 CST: due to dead station battery.
04 Jan. 2021 at 23:00 CST - 05 Jan. 2021 at 11:45 CST: due to dead station battery.
07 Jan. 2021 at 00:00-09:15 CST: due to dead station battery.
08 Jan. 2021 at 05:15-09:00 CST: due to dead station battery.
10 Jan. 2021 at 05:00-10:00 CST: due to dead station battery.
11 Jan. 2021 at 21:00 CST - 12 Jan. 2021 at 13:15 CST: due to dead station battery.
12 Jan. 2021 at 18:45 CST - 13 Jan. 2021 at 11:30 CST: due to dead station battery.
14 Jan. 2021 at 05:00-09:45 CST: due to dead station battery.
16 Jan. 2021 at 19:00 CST - 29 Jan. 2021 at 14:00 CST: due to dead station battery.
29 Jan. 2021 at 15:45 CST - 02 Feb. 2021 at 16:00 CST: due to dead station battery.
07 Jun. 2021 at 04:15 CDT - 29 Jul. 2021 at 14:45 CDT: due to plugged rain gage funnel.

INSTRUMENTATION - Precipitation was measured with a Texas Electronics TRP-525-I-01 tipping-bucket rain gage, which was accurate to 0.01 inches. The rain gage was unheated and uncovered during the winter. Thus precipitation data during freezing periods (about December through early April) result from melting of snow during warm periods and do NOT represent actual precipitation.

WATER-QUALITY RECORDS

WELL CHARACTERISTICS - Depth 525 ft. Upper casing diameter undefined; top of first opening undefined, bottom of last opening undefined. Well CDN-07 is a community water supply well that was drilled on 06 June 2001 with an 10-inch diameter, air-rotary, and driven drill rig to 325 feet. Originally, the well was constructed with a 6-inch-diameter, open hole (no well screen), with length/s of 6-inch-diameter, schedule-40 steel well casing. Well re-drilled in 2014 (unknown date) with an unknown diameter, unknown drill-rig type to 525 feet. The well is currently constructed with a 6-inch-diameter, open hole (no well screen), with length/s of 6-inch-diameter, schedule-40 steel well casing. The well pump was also lowered to a depth of 480 ft in 2014. The well casing measuring point (stickup) was 1.55 feet (1390.55 ft. NAVD88, +/- 1.6 ft.) above land surface when measured on 11 Mar. 2020. The open interval of the well is currently between 16.7 and 518.9 feet below land surface and the total well depth is 518.9 feet below land surface (according to MGS video inspection on 11/5/19).

DATUM - Land-surface datum is 1,389 ft above North American Vertical Datum of 1988. Measuring point: Black mark on top of 6-inch diameter well casing. Remove well cap to access MP1, 1.55 ft above land-surface datum, Mar. 11, 2020 to present. The measuring point is a black mark on top of the 6-inch diameter steel well casing, which was 1.55 feet above land surface on 11 Mar. 2020. Elevation of the measuring point is 1390.55 plus-or-minus 1.6 feet above sea level, North American Vertical Datum of 1988, based on Digital Elevation Model (DEM) data.

PERIOD OF RECORD -

Water temperature (18.4 ft. BLS):
Water temperature were recorded hourly from 11 March 2020 at 12:00 CDT to 12 March 2020 at 04:00 CDT. Water temperature were recorded quarter-hourly from 12 March 2020 at 04:15 CDT to 15 March 2020 at 12:15 CDT, except during the following periods:

12 Mar. 2020 at 12:30 & 23:30 CDT: due to water level dropping below transducer thermistor.
13 Mar. 2020 at 10:30 & 21:30 CDT: due to water level dropping below transducer thermistor.
14 Mar. 2020 at 08:30 & 19:30 CDT: due to water level dropping below transducer thermistor.

Water temperature (37.5 ft. BLS):
Water temperature were recorded quarter-hourly from 15 March 2020 at 15:00 CDT to 16 April 2020 at 08:00 CDT.

Water temperature (66.8 ft. BLS):
Water temperature were recorded quarter-hourly from 16 March 2020 at 09:00 CDT to 16 November 2021 at 14:00 CST, except during the following periods:

Intermittent gaps during 30 Jun. 2020 - 18 Sept. 2020: due to water level dropping below transducer thermistor.
25 Dec. 2020 at 01:00 CST - 03 Jan. 2021 at 13:15 CST: due to dead station battery.
04 Jan. 2021 at 05:00 CST - 03 Jan. 2021 at 04:30 CST: due to dead station battery.
04 Jan. 2021 at 23:00 CST - 05 Jan. 2021 at 11:45 CST: due to dead station battery.
07 Jan. 2021 at 00:00-09:15 CST: due to dead station battery.
08 Jan. 2021 at 05:15-09:00 CST: due to dead station battery.
10 Jan. 2021 at 05:00-10:00 CST: due to dead station battery.
11 Jan. 2021 at 21:00 CST - 12 Jan. 2021 at 13:15 CST: due to dead station battery.
12 Jan. 2021 at 18:45 CST - 13 Jan. 2021 at 11:30 CST: due to dead station battery.
14 Jan. 2021 at 05:00-09:45 CST: due to dead station battery.
16 Jan. 2021 at 19:00 CST - 29 Jan. 2021 at 14:00 CST: due to dead station battery.
29 Jan. 2021 at 15:45 CST - 02 Feb. 2021 at 16:00 CST: due to dead station battery.
Intermittent gaps  30 Apr. 2021 - 12 Jun. 2021: due to water level dropping below transducer thermistor.
Intermittent gaps  07-23 Aug. 2021: due to water level dropping below transducer thermistor.

COOPERATION - This site was operated from 11 March 2020 to 16 November 2021 by the U.S. Geological Survey as a monitoring well for the USGS/MDH Automated Virus Sampler Study. The USGS/MDH Automated Virus Sampler study was a collaborative study between the Minnesota Dept. of Health and the U.S. Geological Survey.

INSTRUMENTATION - Water temperature was measured with a Campbell Scientific, Inc. CS451 submersible pressure transducer thermistor, which was accurate to +/- 0.1°C. Temperature differences are accurate to 0.1°C.

REMARKS -

Water temperatures were recorded at 18.1 feet below land surface during 11 Mar. 2020 to 15 Mar. 2020 at 13:45 CDT. Water temperatures were recorded at 18.1 feet below land surface during 15 Mar. 2020 at 14:00 CDT to 16 Apr. 2020 at 08:00 CDT. Beginning on 16 Apr. 2020 at 09:00 CDT, the original transducer was replaced and repositioned deeper in the well and began recording water temperature data at 66.8 feet below land surface. Transducer was replaced and repositioned deeper in the well to record deeper water level data (draw-down) and a larger range of water level fluctuations during active pumping periods