Overview
  • Station Id: 01574000
  • County: York
  • Drainage Area: 512 sq.mi.
  • Station Coordinates: 40.081°, -76.718°
  • Period of record: 10/84 to 12/89 & 10/04 to present
Location Description
Station is located at the Route 181 bridge and gage is located north bank 500 feet upstream of Route 181 bridge.
Data
2000 Land Use
Urban Agricultural Forested Other
Urban Agricultural Forested Other
Row Crops Pasture/Hay Total
9% 35% 18% 53% 27% 11%
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 -0.574 -0.057 -23 <0.05 Down 0.99 HL Down
FNF -0.3696 -0.037 -19 <0.05 Down 0.99 HL Down
TNOx / 630 FNC -0.72 -0.072 -34 <0.05 Down 0.99 HL Down
FNF -0.4298 -0.043 -30 <0.05 Down 0.99 HL Down
TON / 605 FNC 0.116 0.012 29 <0.05 Up 0.99 HL Up
FNF 0.04223 0.0042 9.1 0.61 NS 0.61 ALAN Up
TNH3 / 610 FNC 0.0086 0.00086 17 0.34 NS 0.82 L Up
FNF 0.0195 0.0019 43 0.16 NS 0.92 VL Up
DN / 602 FNC -0.619 -0.062 -25 <0.05 Down 0.99 HL Down
FNF -0.3632 -0.036 -21 <0.05 Down 0.99 HL Down
DNOx / 631 FNC -0.664 -0.066 -32 <0.05 Down 0.99 HL Down
FNF -0.3845 -0.038 -28 <0.05 Down 0.99 HL Down
DON / 607 FNC 0.0185 0.0018 5.2 0.53 NS 0.74 L Up
FNF 0.00213 0.00021 0.72 0.91 NS 0.54 ALAN Up
DNH3 / 608 FNC 0.0143 0.0014 32 0.2 NS 0.90 L Up
FNF 0.02192 0.0022 53 0.18 NS 0.91 VL Up
TP / 665 FNC 0.015 0.0015 12 0.63 NS 0.69 L Up
FNF 0.0131 0.0013 8.2 0.83 NS 0.59 ALAN Up
DP / 666 FNC 0.0093 0.00093 9.5 0.47 NS 0.76 L Up
FNF 0.0114 0.0011 13 0.48 NS 0.76 L Up
DOP / 671 FNC 0.00845 0.00085 10 0.59 NS 0.71 L Up
FNF 0.0099 0.00099 13 0.49 NS 0.76 L Up
TOC / 680 FNC -0.171 -0.017 -3.6 0.73 NS 0.64 ALAN Down
FNF -0.0669 -0.0067 -1.5 0.91 NS 0.54 ALAN Down
SSC-TSS / 80154 FNC 3.33 0.33 17 0.57 NS 0.71 L Up
FNF -16.88 -1.7 -21 0.39 NS 0.81 L Down