SNAP

Chemung River at Chemung, NY

Overview
  • Station Id: 01531000
  • County: Chemung
  • Drainage Area: 2,507 sq.mi.
  • Station Coordinates: 42.003°, -76.635°
  • Period of record: 10/04 to present
  • Elevation: 779 ft.
Location Description

Station is located on the bridge 0.76 miles southwest of Chemung on Route 3.

Data

2016 Land Use

Urban Agricultural Agricultural Forested Other
Row Crops Pasture/Hay Total
7% 5% 23% 28% 61% 4%
Site Drainage Area

Please select a parameter from the list to view graphs of loads and concentrations. You may need to scroll down to view graphs.

Clear
2023 Flow Normalized Trends
Trend period (Water Year*) 2005-2023
Trend & Direction NS – Not significant,  UP – Increasing trend,  DOWN – Decreasing trend
Hypothesis Test significance level (i.e. α) 0.1
* Water Year runs from October 1st to September 30th of the following year
Likelihood Descriptor Range of values**
HL (Highly Likely) ≥0.95 and ≤1.00 
VL (Very Likely) ≥0.90 and <0.95 
L (Likely) ≥0.66 and <0.90
ALAN (About as Likely as Not) >0.33 and <0.66
** Values represent the posterior mean estimate of the probability of a trend
Chemung 2005-2023
Flow Normalized Concentration (mg/L)
Flow Normalized Load (Millions Kg/yr)
Likelihood Test
Likelihood Test
Parameter Change Value Descriptor Trend Change Value Descriptor Trend
Total Nitrogen 0.0161429 0.5588235 ALAN NS -0.1321137 0.8137255 L DWN
Nitrate-Nitrite 0.1228790 0.8137255 L UP -0.1321137 0.8137255 L DWN
Ammonia -0.0113334 0.9509804 HL DWN -0.0462272 0.9705882 HL DWN
Dissolved Nitrogen -0.0925986 0.9901961 HL DWN -0.2631947 0.8725490 L DWN
Nitrate-Nitrite 0.0162209 0.5196078 ALAN NS -0.2631947 0.8725490 L DWN
Ammonia -0.0161825 0.9705882 HL DWN -0.0549023 0.9705882 HL DWN
Total Phosphorus -0.0669780 0.9901961 HL DWN -0.1440462 0.9313725 VL DWN
Particulate Phosphorus -0.0184781 0.9901961 HL DWN -0.0425169 0.7941176 L DWN
Dissolved Phosphorus -0.0436356 0.9705882 HL DWN -0.0835823 0.9901961 HL DWN
Orthophosphate -0.0456267 0.9705882 HL DWN -0.0812379 0.9901961 HL DWN
Total Organic Carbon 0.1622647 0.8725490 L UP 0.1610656 0.6372549 ALAN NS
Total Suspended Solids 2.8449828 0.5588235 ALAN NS 143.0646183 0.7745098 L UP
Suspended Sediment 12.7131918 0.7941176 L UP 208.9325374 0.7941176 L UP