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
2021 Flow Normalized Trends
Trend period (Water Year*) 2005-2021
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 2005-2021 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 -1.1630763 0.9509804 HL DN -0.1718331 0.9313725 VL DN
Nitrate-Nitrite -0.8072556 0.8333333 L DN -0.1171451 0.8333333 L DN
Ammonia 0.0107260 0.6568627 ALAN NS 0.0063878 0.8333333 L UP
Dissolved Nitrogen -1.2205568 0.9313725 VL DN -0.1838532 0.9117647 VL DN
Nitrate-Nitrite -0.6296654 0.7745098 L DN -0.0888210 0.7156863 L DN
Ammonia 0.0098178 0.5784314 ALAN NS 0.0059008 0.8333333 L UP
Total Phosphorus 0.0329512 0.6764706 L UP 0.0153755 0.7352941 L UP
Particulate Phosphorus 0.0120704 0.6176471 ALAN NS 0.0108714 0.7549020 L UP
Dissolved Phosphorus 0.0212449 0.7156863 L UP 0.0056842 0.7549020 L UP
Orthophosphate 0.0217736 0.7549020 L UP 0.0062435 0.7745098 L UP
Total Organic Carbon -0.6014550 0.9313725 VL DN -0.2081374 0.9313725 VL DN
Total Suspended Solids -3.3078358 0.6568627 ALAN NS -4.5837456 0.6764706 L DN
Suspended Sediment 52.2151735 0.8725490 L UP 25.0890759 0.7549020 L UP