Pony Hollow Creek Monitoring Set
Pony Hollow Creek Monitoring Set Map
Synoptic Investigative Red Flag Biological
Pony Hollow Creek Monitoring Set Graphs
Select Water Quality Indicator

Note: The points on this graph reflect the average levels or concentrations of each water quality parameter. To see the individual data points that make up these averages, please scroll down and select a Sampling Location or a Monitoring Event from the tables below.

Selection of water quality indicators is controlled by drop-down menu on the upper right. Graph presents average values for both SYNOPTIC LOCATIONS and REDFLAG LOCATIONS over all monitoring events (see below right, table of events). Synoptic and Red Flag locations are ordered downstream to upstream (left to right) according to their distance from the stream mouth (see below left, table of locations). If distance to mouth has not been determined, the location defaults to the right end of the graph. Graph distances do not correspond to actual miles to mouth. INVESTIGATIVE LOCATIONS and BIOLOGICAL LOCATIONS are excluded.

Separate averages are reported for samples collected under base flow and stormwater conditions. These stream flow categories are loosely defined. BASE FLOW corresponds to normal or low flow conditions. STORMWATER corresponds to elevated flows following rain or snow melt, as judged by online hydrographs of USGS gauging stations, if available, and/or as judged by volunteers based on their familiarity with the stream and their observation of factors such as stream turbulence and turbidity. Though loosely defined, these two flow categories provide a useful approximation of the impact of runoff on water quality. See metadata for a description of methods for estimating stream discharge and nutrient loading.

Pony Hollow Creek Sampling Locations

This table lists all SYNOPTIC LOCATIONS , REDFLAG LOCATIONS , INVESTIGATIVE LOCATIONS , and BIOLOGICAL LOCATIONS in the watershed of the monitoring set, their latitude and longitude coordinates, and the number of river miles to the stream mouth, where applicable. Select a location to view a detailed site map and timeline of chemical and microbiological results.

Name Code Latitude Longitude Miles from the mouth Type
Pony Hollow Creek @ Driveway Crossing PHJH 42.3088 -76.6771 SYNOPTIC
Pony Hollow Creek Wetland @ Mazourek PHW 42.3242 -76.6479 SYNOPTIC
Pony Hollow Creek @ Connecticut Hill Rd. PHCH 42.3178 -76.6664 SYNOPTIC
Chaffee Creek @ Route 13 CH13 42.3047 -76.6765 SYNOPTIC
Pony Hollow Creek @ Cayuta Rd. PHCR 42.296 -76.6857 SYNOPTIC
Chaffey Creek 42.314 -76.6631 INVESTIGATIVE
Pony Hollow Creek - Cayuta Rd near Rte 13 42.296081 -76.685647 BIOLOGICAL
Pony Hollow Creek Monitoring Events

This table lists the dates of all chemical and microbiological monitoring events since the beginning of the monitoring set. A PARTIAL EVENT indicates that less than 90% of SYNOPTIC LOCATIONS were sampled. Select a date to navigate to a graph and table of raw chemical and microbiological data from the corresponding event.

Date Flow Type
1 April 28, 2022 BASE FLOW SYNOPTIC EVENT
2 November 04, 2021 BASE FLOW SYNOPTIC EVENT
3 September 09, 2021 BASE FLOW SYNOPTIC EVENT
4 April 15, 2021 BASE FLOW SYNOPTIC EVENT
5 November 12, 2020 BASE FLOW SYNOPTIC EVENT
6 September 10, 2020 BASE FLOW SYNOPTIC EVENT
7 June 25, 2020 BASE FLOW SYNOPTIC EVENT
8 April 02, 2020 BASE FLOW SYNOPTIC EVENT
9 October 17, 2019 STORMWATER SYNOPTIC EVENT
10 August 22, 2019 BASE FLOW SYNOPTIC EVENT
11 June 06, 2019 BASE FLOW SYNOPTIC EVENT
12 April 11, 2019 BASE FLOW SYNOPTIC EVENT
13 September 18, 2018 STORMWATER SYNOPTIC EVENT
14 August 09, 2018 STORMWATER SYNOPTIC EVENT
15 June 14, 2018 BASE FLOW SYNOPTIC EVENT
16 May 24, 2018 BASE FLOW SYNOPTIC EVENT
17 April 05, 2018 BASE FLOW PARTIAL EVENT
18 November 08, 2017 STORMWATER SYNOPTIC EVENT
19 October 19, 2017 BASE FLOW SYNOPTIC EVENT
20 July 27, 2017 STORMWATER SYNOPTIC EVENT
21 May 18, 2017 BASE FLOW SYNOPTIC EVENT
22 May 05, 2017 STORMWATER SYNOPTIC EVENT
23 March 27, 2017 STORMWATER SYNOPTIC EVENT
24 February 08, 2017 STORMWATER SYNOPTIC EVENT
25 February 04, 2017 STORMWATER PARTIAL EVENT
26 October 13, 2016 BASE FLOW PARTIAL EVENT
27 August 15, 2016 BASE FLOW PARTIAL EVENT
28 May 24, 2016 BASE FLOW SYNOPTIC EVENT