LOCATION.--Lat 40°36'31.15", long
73°39'22.22" referenced to North American Datum of
1983, Nassau County, NY, Hydrologic Unit 02030202, at Village
of Island Park Masone Beach Pier, in Island Park.
PERIOD OF RECORD.--October 2010 to current year.
GAGE.--Water-stage recorder. Datum of gage is NGVD of
1929.
REMARKS.--Elevation WY 2014: Records good, except those
for Oct. 26 to Dec. 3, June 11 to Aug. 21, Sept. 25-30, which
are fair, Dec. 4 to Jan. 1, Aug. 22 to Sept. 24, which are
poor, and Jan. 2 to May 28, which were deleted. Periods of
missing record were estimated with MISTE using a linear
regression with 01311145 and 01310740. Satellite elevation
telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum elevation, 10.89
ft, Oct. 29, 2012; minimum elevation, -4.22 ft, Feb. 20,
2015.
EXTREMES OUTSIDE PERIOD OF RECORD.--Storm tide of Dec.
11, 1992, reached an elevation of 7.3 ft, from high-water mark
at site 1.1 mi south-southwest.
PERIOD OF RECORD1.--October 2010 to current
year. Sampling depth records for October 2010 to current year
are unpublished and available in files of the Geological
Survey.
PERIOD OF DAILY RECORD1.--WATER TEMPERATURE:
October 2010 to current year. SALINITY: October 2010 to current
year. DISSOLVED OXYGEN: October 2010 to current year. pH:
October 2012 to current year. TURBIDITY: October 2010 to
current year. CHLOROPHYLL: October 2010 to current year.
NITRATE: March 2011 to April 2022.
INSTRUMENTATION1.--Water-quality monitor
provides 6-minute-interval readings collected from 1.6 ft above
bottom. Nitrate analyzer provides 30-minute-interval readings
collected from 1.6 ft above bottom. Salinity record computed
from specific-conductance readings.
REMARKS1.--Satellite telemeter for water
temperature, specific conductance, dissolved oxygen, pH,
turbidity, chlorophyll, nitrate, and sampling depth parameters
at station. WATER TEMPERATURE WY 2016: Records excellent.
SALINITY WY 2016: Records excellent, except those for Oct.
1-13, May 12 to June 7, June 26 to July 23, Sept. 5-7, 12-26,
which are good, Oct. 14-23, July 24-30, Sept. 27-30, which are
fair, and Oct. 24 to Nov. 17, July 31 to Aug. 10, which are
poor. DISSOLVED OXYGEN WY 2016: Records excellent, except those
for May 20 to June 7, 9-20, Aug 13-17, Aug. 19 to Sept. 2,
Sept. 7, which are good, June 21-29, Sept. 3-6, which are fair,
and June 30 to July 12 which are poor. TURBIDITY WY 2016:
Records excellent, except those for Mar. 14-15, May 4-6, 8, 16,
18, 20-21, 28, June 2, 29, July 1-2, 5, Aug. 16, Sept. 2-4,
6-7, 29, which are good, and Sept. 1, which is fair.
CHLOROPHYLL WY 2016: Records excellent, except those for Dec.
11-17, 19-23, 29, 31, Jan. 2-8, Feb. 28 to Mar. 1, 3-14, May
10-28, July 17-23, Aug. 15-24, which are good, Jan. 9-10, 12,
14, May 29 to June 7, July 24-29, Aug 25 to Sept. 3, which are
fair, and Jan. 11, 13, July 30 to Aug. 10, Sept. 4-7, which are
poor. NITRATE WY 2016: Records excellent, except those for Oct.
3, 6-8, Nov. 20 to Dec. 3, Dec. 20 to Jan 13, Apr. 20-25, Aug.
23 to Sept. 7, Sept. 20-30, which are good and Jan. 14, which
is fair.
EXTREMES FOR PERIOD OF RECORD1.--WATER
TEMPERATURE: Maximum, 30.8 °C, Aug. 15, 2016; minimum, -1.8 °C,
Jan. 5, 6, 2018. SALINITY: Maximum, 38.4 psu, Oct. 28, 2015;
minimum, 19.9 psu, Aug. 28, 2011. DISSOLVED OXYGEN: Maximum,
19.0 mg/L, July 13, 2017, Feb. 21, 2018; minimum, 1.7 mg/L,
Apr. 9, 2024. pH: Maximum, 8.9 standard units, Feb. 15, 2023;
minimum, 7.1 standard units, June 2, 2013. TURBIDITY: Maximum,
360 FNU, Dec. 8, 2011; minimum, <0.1 FNU, on several days
throughout the recorded period. CHLOROPHYLL: Maximum, 140 ug/L,
Apr. 4, 2011; minimum, <0.1 ug/L, on several days throughout
the recorded period. NITRATE: Maximum, 1.6 mg/L as N, Feb. 2,
2012, higher values may have occurred during periods of missing
record; minimum, <0.01 mg/L as N, on several days throughout
the recorded period.
1 Water-Quality Records