Overview
  • Station Id: 01515000
  • County: Lancaster
  • Drainage Area: 4,734 sq.mi.
  • Station Coordinates: 42.028°, -76.384°
  • Period of record: 10/04 to present
Location Description
Station is on the bridge 0.87 miles east of Smithboro on 17C. 0.38 miles south on SR 282.
Data
2000 Land Use
Urban Agricultural Forested Other
Urban Agricultural Forested Other
Row Crops Pasture/Hay Total
3% 9% 20% 29% 59% 4%
Site Drainage Area

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2015 Flow Normalized Trends

Trend period (Water Year) 2004-2015
FNC (Flow Normalized Concentration) (mg/L) FNC Slope – mg/L/yr
FNF (Flow Normalized Flux) 10^6 kg/yr FNF Slope – 10^6 kg/yr/yr
Trend & Direction NS – Not significant,  UP – Increasing trend,  DOWN – Decreasing trend
SMK – Seasonal Mann-Kendall for flow trends, alpha level 0.05
FNC/FNF alpha level 0.1
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
Parameter/code Trend Test Change Slope % Change Over the Period of Record Hypothesis Test Likelihood Test
P-value Trend Value Descriptor Direction
TN / 600 FNC -0.1 -0.01 -9.9 0.14 NS 0.94 VL Down
FNF -1.006 -0.1 -11 0.2 NS 0.90 L Down
TNOx / 630 FNC -0.0296 -0.003 -5.3 0.42 NS 0.79 L Down
FNF -0.5595 -0.056 -12 0.2 NS 0.89 L Down
TON / 605 FNC -0.0297 -0.003 -7.5 0.59 NS 0.71 L Down
FNF -0.098 -0.0098 -2.6 0.95 NS 0.51 ALAN Down
TNH3 / 610 FNC -0.0008 -0.00008 -1.7 0.96 NS 0.51 ALAN Down
FNF -0.0575 -0.0057 -13 0.35 NS 0.84 L Down
DN / 602 FNC -0.0056 -0.00056 -0.63 0.96 NS 0.51 ALAN Down
FNF -0.3266 -0.033 -4.5 0.44 NS 0.79 L Down
DNOx / 631 FNC -0.0139 -0.0014 -2.5 0.92 NS 0.53 ALAN Down
FNF -0.4047 -0.04 -8.8 0.22 NS 0.90 L Down
DON / 607 FNC 0.0461 0.0046 17 <0.05 Up 0.99 HL Up
FNF 0.1706 0.017 7.3 0.45 NS 0.76 L Up
DNH3 / 608 FNC -0.0001 -0.00001 -0.29 0.97 NS 0.51 ALAN Down
FNF -0.001 -0.0001 -0.26 0.98 NS 0.51 ALAN Down
TP / 665 FNC -0.0303 -0.003 -36 <0.05 Down 0.99 HL Down
FNF -0.2498 -0.025 -24 0.07 Down 0.97 HL Down
DP / 666 FNC -0.0154 -0.0015 -48 0.06 Down 0.97 HL Down
FNF -0.1402 -0.014 -48 <0.05 Down 0.08 HL Down
DOP / 671 FNC -0.0156 -0.0016 -60 0.09 Down 0.96 HL Down
FNF -0.1499 -0.015 -62 <0.05 Down 1.00 HL Down
TOC / 680 FNC 0.0663 0.0066 2.1 0.97 NS 0.51 ALAN Up
FNF 2.518 0.25 9.3 0.23 NS 0.89 L Up
SSC-TSS / 80154 FNC -7.29 -0.73 -22 0.25 NS 0.88 L Down
FNF -332.3 -33 -39 0.08 Down 0.96 HL Down