Susquehanna River at Marietta, Pa.
Overview
- Station Id: 01576000
- County: Lancaster
- Drainage Area: 25,996 sq.mi.
- Station Coordinates: 40.029°, -76.518°
- Period of record: 10/86 to present
Location Description
Sample location is along the Route 30 bridge. The gage is located on the east bank upstream of the Route 30 bridge and 1 mile downstream of Marietta, Pa.
Data
- Data File Description
- MAR.xlsx October 1986 to present
2016 Land Use
| Urban | Agricultural | Agricultural | Forested | Other | ||
|---|---|---|---|---|---|---|
| Row Crops | Pasture/Hay | Total | ||||
| 8% | 8% | 15% | 23% | 64% | 5% | |
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.
Loads
Concentrations
Data
2022 Flow Normalized Trends
| Trend period (Water Year*) | 1987-2022 |
|---|---|
| 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 | |
| Marietta 1987-2022 | 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 | -0.7471030 | 0.9901961 | HL | DWN | -29.9925124 | 0.9901961 | HL | DWN |
| Nitrate-Nitrite | -0.2645517 | 0.9901961 | HL | DWN | -9.7590645 | 0.9901961 | HL | DWN |
| Ammonia | -0.0430555 | 0.9901961 | HL | DWN | -1.8718138 | 0.9901961 | HL | DWN |
| Dissolved Nitrogen | -0.5364721 | 0.9901961 | HL | DWN | -19.3659742 | 0.9901961 | HL | DWN |
| Nitrate-Nitrite | -0.2633806 | 0.9901961 | HL | DWN | -10.1733979 | 0.9901961 | HL | DWN |
| Ammonia | -0.0438165 | 0.9901961 | HL | DWN | -1.8662805 | 0.9901961 | HL | DWN |
| Total Phosphorus | -0.0573828 | 0.9901961 | HL | DWN | -1.8751840 | 0.9901961 | HL | DWN |
| Particulate Phosphorus | -0.0328233 | 0.9901961 | HL | DWN | -1.0286580 | 0.8529412 | L | DWN |
| Dissolved Phosphorus | -0.0248374 | 0.9901961 | HL | DWN | -0.8621058 | 0.9901961 | HL | DWN |
| Orthophosphate | 0.0019650 | 0.8725490 | L | UP | 0.1419549 | 0.9705882 | HL | UP |
| Total Organic Carbon | -1.2305407 | 0.9901961 | HL | DWN | -42.9405607 | 0.9901961 | HL | DWN |
| Total Suspended Solids | -13.3149980 | 0.9313725 | VL | DWN | -1184.2124799 | 0.9117647 | VL | DWN |
| Suspended Sediment | -26.3942899 | 0.9901961 | HL | DWN | -1553.8556683 | 0.9509804 | HL | DWN |