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

2021 Land Use

Urban Agricultural Agricultural Forested Other
Row Crops Pasture/Hay Total
17% 45% 15% 60% 21% 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
2024 Flow Normalized Trends
Trend period (Water Year*) 2005-2024
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 2005-2024 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 -1.3745529 0.9901961 HL DWN -0.2227878 0.9901961 HL DWN
Nitrate-Nitrite -1.0011071 0.9901961 HL DWN -0.1575903 0.9901961 HL DWN
Ammonia 0.0073210 0.6960784 L UP 0.0031521 0.7156863 L UP
Dissolved Nitrogen -1.4371354 0.9901961 HL DWN -0.2348470 0.9901961 HL DWN
Nitrate-Nitrite -0.8356116 0.9901961 HL DWN -0.1318569 0.9901961 HL DWN
Ammonia 0.0080922 0.7352941 L UP 0.0030159 0.6960784 L UP
Total Phosphorus 0.0482246 0.8529412 L UP 0.0261500 0.8921569 L UP
Particulate Phosphorus 0.0117178 0.7549020 L UP 0.0140390 0.7941176 L UP
Dissolved Phosphorus 0.0345332 0.9313725 VL UP 0.0109617 0.9509804 HL UP
Orthophosphate 0.0276071 0.8725490 L UP 0.0092660 0.9509804 HL UP
Total Organic Carbon -0.3225242 0.6764706 L DWN -0.1592574 0.9117647 VL DWN
Total Suspended Solids -3.2782199 0.6176471 ALAN NS -2.5063423 0.6568627 ALAN NS
Suspended Sediment 87.9548869 0.8725490 L UP 29.5370109 0.8725490 L UP