SNAP

Pequea Creek at Martic Forge, Pa.

Overview
  • Station Id: 01576787
  • County: Lancaster
  • Drainage Area: 149 sq.mi.
  • Station Coordinates: 39.906°, -76.328°
  • Period of record: 10/04 - Present
Location Description

Station is on the bridge 0.06 miles Northwest of Martic Forge on Route 324.

Data

2016 Land Use

Urban Agricultural Agricultural Forested Other
Row Crops Pasture/Hay Total
14% 45% 16% 61% 23% 2%
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
2022 Flow Normalized Trends
Trend period (Water Year*) 2005-2022
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
Martic Forge 2005-2022 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 -1.0521155 0.9705882 HL DWN -0.1604955 0.9705882 HL DWN
Nitrate-Nitrite -0.7059543 0.8921569 L DWN -0.1130472 0.8529412 L DWN
Ammonia 0.0100504 0.7352941 L UP 0.0086261 0.8921569 L UP
Dissolved Nitrogen -1.1070303 0.9509804 HL DWN -0.1747068 0.9509804 HL DWN
Nitrate-Nitrite -0.5468238 0.8333333 L DWN -0.0878103 0.7745098 L DWN
Ammonia 0.0081381 0.6960784 L UP 0.0076662 0.8529412 L UP
Total Phosphorus 0.0281662 0.7156863 L UP 0.0210890 0.7745098 L UP
Particulate Phosphorus 0.0105441 0.5784314 ALAN NS 0.0141292 0.7941176 L UP
Dissolved Phosphorus 0.0194892 0.7745098 L UP 0.0080457 0.7745098 L UP
Orthophosphate 0.0191113 0.8333333 L UP 0.0077906 0.7352941 L UP
Total Organic Carbon -0.5569144 0.8921569 L DWN -0.1634344 0.9117647 VL DWN
Total Suspended Solids -3.4123033 0.6176471 ALAN NS -2.2883718 0.6568627 ALAN NS
Suspended Sediment 58.6863596 0.8725490 L UP 29.6036502 0.7549020 L UP