Skip to main content
Image of the Baltimore County Seal

Main navigation

  • Services
  • Report
  • Pay
  • Apply
  • Contact
Baltimore County Government
Use the dropdown menu to select your preferred language
English العربية Français 한국어 Русский Español

County offices are closed on Monday, May 26, for Memorial Day.

Breadcrumb

  1. Home
  2. Departments
  3. Health
  4. Environmental Health Services
  5. Water Sampling
  6. Water Sampling Results
  7. Sanitary Sewer Overflow Water Sampling Results

Sanitary Sewer Overflow Water Sampling Results

  • Back River
  • Bear Creek
  • Center Place
  • Cockeysville
  • Cordon Way
  • Essex Pumping Station
  • Frederick Road Pumping Station
  • Hart Miller Island
  • Honeygo Boulevard Bridge
  • Kings Point Pumping Station
  • Mercantile Road
  • Oella Avenue
  • Recycle Way
  • Rocky Point Beach
  • Southern Cross Drive
  • Unnamed Tributary
  • Winters Lane

BEAR CREEK

October 17, 2017
Bear Creek           
Sampling ID LocationsUpstreamSiteDownstream        
E. Coli Results3030<10        
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results9.6566.521.004.948.1612.4857.824.1LowNW 0-5No
October 12, 2017
Bear Creek           
Sampling ID LocationsUpstreamSiteDownstream        
E. Coli Results560410500        
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results486.0173.020.904.548.3912.5355.823.7HighE 10-15Yes
October 2, 2017
Bear Creek           
Sampling ID LocationsUpstreamSiteDownstream        
E. Coli Results1019010        
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results4.9871.422.206.468.9913.379.923.200LowW 0-5No

CENTER PLACE

November 13, 2017
101 Center Place         
Sampling ID LocationsUpstreamSiteDownstream     
E. Coli Results120315532420     
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results1653.55N/AN/AN/AN/AN/AN/AN/AN/AN 5-10Yes
November 6, 2017
101 Center Place         
Sampling ID LocationsUpstreamSiteDownstream     
E. Coli Results>2420>2420>2420     
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results2420.00N/AN/AN/AN/AN/AN/AN/AN/AS 5-10Yes

COCKEYSVILLE

November 9, 2016
Parks Run         
Sampling ID LocationsAt Cranbrook RoadAt Greenside DriveAt confluent of two branchesAbove Scott Adam RoadAbove York RoadOverflow SiteDownstreamAt Beaver Dam Run
E. Coli Results1011>2420>2420>2420>2420>2420>2420>2420
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results2169.8653.600.6837.248.940.3367.40N/AN/AN 5-10Yes
November 9, 2016
Beaver Dam Run         
Sampling ID LocationsUpstreamDownstream from Parks RunFurther Downstream     
E. Coli Results15531986>2420     
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results1954.2952.200.7418.289.190.3675.90N/AN/AN 5-10Yes
September 28, 2016
Parks Run         
Sampling ID LocationsUpstreamOverflow SiteDownstreamAt Beaver Dam Run     
E. Coli Results>242019861414>2420     
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results2013.7963.500.9317.389.090.46076.90N/AN/ANW 0-5Yes
September 28, 2016
Beaver Dam Run         
Sampling ID LocationsUpstreamDownstream from Parks RunFurther Downstream     
E. Coli Results>2420>2420>2420     
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results242061.800.6386.699.060.31068.00N/AN/ANW 0-5Yes
September 28, 2016
Western Run         
Sampling ID LocationsUpstreamOverflow SiteDownstream      
E. Coli Results1122420>2420      
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results868.86N/AN/AN/AN/AN/AN/AN/AN/ANW 0-5Yes

UNNAMED TRIBUTARY

November 9, 2016
Gwynns Falls (near Southern Cross Drive)         
Sampling ID LocationsUpstreamDownstream from Parks RunFurther Downstream     
E. Coli Results>2420>2420>2420     
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results242053.300.8608.249.290.4275.60N/AN/AN 5-10Yes
November 9, 2016
Jones Falls (near Keyser Road)         
Sampling ID LocationsUpstreamDownstream from Parks RunFurther Downstream     
E. Coli Results>2420>2420>2420     
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results242057.500.3836.058.220.1859.20N/AN/AN 5-10Yes
September 6, 2016
Upstream—Pikesville (near Keyser Road)       
Sampling ID Numbers1         
E. Coli Results1046         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWind Rain 24/hr 
Results1046.00N/AN/AN/AN/AN/AN/AN/AN/ASE
5-10
No
September 6, 2016
Overflow (near Keyser Road)        
Sampling ID Numbers1         
E. Coli Results816         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results816.00N/AN/AN/AN/AN/AN/AN/AN/ASE 
5-10
No
September 6, 2016
Downstream (near Keyser Road)       
Sampling ID Numbers1         
E. Coli Results1733         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results1733.00N/AN/AN/AN/AN/AN/AN/AN/ASE
5-10
No

RECYCLE WAY

September 6, 2016
Parks Run         
Sampling ID LocationsUpstreamOverflow SiteDownstreamAt Beaver Dam Run     
E. Coli Results>2420>2420>2420649     
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results1741.5067.800.9737.529.050.48082.40N/AN/ANW 10-15No
September 6, 2016
Beaver Dam Run        
Sampling ID LocationsUpstreamDownstream from Parks RunFurther Downstream      
E. Coli Results114159166      
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results144.3766.400.628.759.330.30092.00N/AN/ANW 10-15No
September 1, 2016
Parks Run        
Sampling ID LocationUpstreamOverflow SiteDownstreamAt Beaver Dam Run     
E. Coli Results>2420>2420>2420>2420     
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results>242072.100.4936.038.460.24068.80N/AN/ANAYes

SOUTHERN CROSS DRIVE

August 10, 2016
Upstream          
Sampling ID Numbers1         
E. Coli Results461.00         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results461.00N/AN/AN/AN/AN/AN/AN/AN/AS
5-10
No
August 10, 2016
Overflow Site          
Sampling ID Numbers1         
E. Coli Results435         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results435.00N/AN/AN/AN/AN/AN/AN/AN/AS
5-10
No
August 10, 2016
Downstream          
Sampling ID Numbers1         
E. Coli Results517         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results517.00N/AN/AN/AN/AN/AN/AN/AN/AS
5-10
No
August 3, 2016
Upstream          
Sampling ID Numbers1         
E. Coli Results1046         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results1046.00N/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
August 3, 2016
Overflow Site          
Sampling ID Numbers1         
E. Coli Results1300         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results1300.00N/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
August 3, 2016
Downstream          
Sampling ID Numbers1         
E. Coli Results488         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results488.00N/AN/AN/AN/AN/AN/AN/AN/AN/AN/A

OELLA AVENUE, OELLA MILL, PATAPSCO

August 10, 2016
Upstream          
Sampling ID Numbers1         
E. Coli Results104         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results104.00N/AN/AN/AN/AN/AN/AN/AN/AS 
5-10
No
August 10, 2016
Overflow Site
(970 Oella Avenue)
          
Sampling ID Numbers1         
E. Coli Results88         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results88.00N/AN/AN/AN/AN/AN/AN/AN/AS
5-10
No
August 10, 2016
Downstream
(Frederick Road Bridge)
          
Sampling ID Numbers1         
E. Coli Results102         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results102.00N/AN/AN/AN/AN/AN/AN/AN/AS
5-10
No
August 3, 2016
Upstream          
Sampling ID Numbers1         
E. Coli Results1733         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results1733.00N/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
August 1, 2016
Overflow Site
(970 Oella Avenue)
          
Sampling ID Numbers1         
E.Coli Results2420         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results2420N/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
August 1, 2016
Downstream
(Frederick Road Bridge)
          
Sampling ID Numbers1         
Results>2420         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results>2420N/AN/AN/AN/AN/AN/AN/AN/AN/AN/A

KINGS POINT PUMPING STATION

August 10, 2016
Upstream
(Mardella Branch)
           
Sampling ID Numbers1         
Results104          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results104.00N/AN/AN/AN/AN/AN/AN/AN/AS
5-10
No
August 10, 2016
Overflow Site
(Mardella Branch)
           
Sampling ID Numbers1         
Results194          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results194.00N/AN/AN/AN/AN/AN/AN/AN/AS
5-10
No
August 10, 2016
Downstream
(Mardella Branch)
           
Sampling ID Numbers1         
Results166          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results166.00N/AN/AN/AN/AN/AN/AN/AN/AS
 5-10
No
August 1, 2016
Upstream
(Mardella Branch)
           
Sampling ID Numbers1         
Results649          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results649N/AN/AN/AN/AN/AN/AN/AN/ASW 0-5Yes
August 1, 2016
Overflow Site
(Mardella Branch)
           
Sampling ID Numbers1         
Results649          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results649.00N/AN/AN/AN/AN/AN/AN/AN/ASW 0-5Yes
August 1, 2016
Downstream
(Mardella Branch)
           
Sampling ID Numbers1         
Results649          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results
 
649.00N/AN/AN/AN/AN/AN/AN/AN/ASW
 0-5
Yes

FREDERICK ROAD PUMPING STATION

August 10, 2016
Upstream
(Unnamed tributary)
           
Sampling ID Numbers1         
Results365          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results365.00N/AN/AN/AN/AN/AN/AN/AN/AS
5-10
No
August 10, 2016
Overflow Site
(Unnamed tributary)
           
Sampling ID Numbers1         
Results249          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results249.00N/AN/AN/AN/AN/AN/AN/AN/AS
 5-10
No
August 10, 2016
Downstream
(Unnamed tributary)
           
Sampling ID Numbers1         
Results517          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results517.00N/AN/AN/AN/AN/AN/AN/AN/AS
5-10
No
August 1, 2016
Downstream           
Sampling ID Numbers1         
Results1046          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results1046N/AN/AN/AN/AN/AN/AN/AN/ASW 0-5Yes
August 1, 2016
Upstream
(Unnamed tributary)
           
Sampling ID Numbers1         
Results727          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results727N/AN/AN/AN/AN/AN/AN/AN/ASW 0-5Yes
August 1, 2016
Overflow Site
(Unnamed tributary)
           
Sampling ID Numbers1         
Results517          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results517.00N/AN/AN/AN/AN/AN/AN/AN/ASW
 0-5
Yes
August 1, 2016
Downstream
(Unnamed tributary)
           
Sampling ID Numbers1         
Results1046          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results1046N/AN/AN/AN/AN/AN/AN/AN/ASW 0-5Yes
August 1, 2016
Downstream           
Sampling ID Numbers1         
Results1046          
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results1046N/AN/AN/AN/AN/AN/AN/AN/ASW 0-5Yes

ROCKY POINT BEACH

July 19, 2016
Sampling ID Numbers12 3 4 5     
Results (Enterococci MPN)<10<10<1010<10     
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results1.5883.8011.6505.927.646.65079.50n/aHighNE 5-10Yes

HART MILLER ISLAND

July 19, 2016
Sampling ID Numbers12  3 4 5     
Results (Enterococci MPN)<10<10<10<10<10     
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results1.0083.3011.7605.907.536.72078.80n/aHighNE 5-10Yes

BACK RIVER

July 19, 2016
Sampling ID Numbers12  3 4 56 7   
Results (Enterococci MPN)<10<1010102010<10   
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results4.1284.204.7208.528..382.530113.00n/aHighNE 5-10Yes

WINTERS LANE

August 31, 2015
Downstream          
Sampling ID Numbers1         
Results (Enterococci MPN)78         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results7869.01.2304.577.770.6251.5n/an/aN 0-5No
August 31, 2015
Overflow Site          
Sampling ID Numbers1         
Results (Enterococci MPN)167         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results16769.61.2246.068.040.6173.5n/an/aN 0-5No
August 31, 2015
Upstream          
Sampling ID Numbers1         
Results (Enterococci MPN)345         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results345n/an/an/an/an/an/an/an/an/aNo

HONEYGO BOULEVARD BRIDGE

July 6, 2015
Upstream          
Sampling ID Numbers1         
Results (Enterococci MPN)435         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results43572.800.5869.078.060.280105.00n/an/aSE 0-5No
June 29, 2015
Upstream          
Sampling ID Numbers1         
Results (Enterococci MPN)>2420         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results242066.800.4409.377.780.210101.80n/an/aSE 0-5Yes

CORDON WAY

July 6, 2015
Overflow Site          
Sampling ID Numbers1         
Results (Enterococci MPN)326         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results
 
32670.000.5737.587.690.27081.50n/an/aSE 0-5No
June 29, 2015
Overflow Site          
Sampling ID Numbers1         
Results (Enterococci MPN)>2420         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results242066.200.4609.457.960.220102.00n/an/aSE 0-5Yes

MERCANTILE ROAD

July 6, 2015
Down Stream          
Sampling ID Numbers1         
Results (Enterococci MPN)387         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results38773.000.5756.598.030.280100.10n/an/aSE 0-5No
June 29, 2015
Down Stream          
Sampling ID Numbers1         
Results (Enterococci MPN)1414         
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results141467.200.4618.939.250.220100.20n/an/aSE 0-5Yes

ESSEX PUMPING STATION

July 21, 2014
Back RiverAbove OverflowAt OverflowBelow Overflow       
Sampling ID Numbers123       
Results (Enterococci MPN)1020<10       
 
Other ParametersGeo MeanTemp
º F
SpC
mS/cm
DO
mg/L
PHSalinityDO %Turbidity
 NTU
TideWindRain 24/hr 
Results5.84n/an/an/an/an/an/an/aLowSE 5-100

Explore Water Sampling

  • Program Details
  • Water Sampling Results
  • Alerts, Advisories and Closures

Contact Us

Environmental Health Services

Drumcastle Government Center
6401 York Road, Third Floor
Baltimore, Maryland 21212

Hours

Monday through Friday
8:30 a.m. to 4:30 p.m.

Email

ehs@baltimorecountymd.gov

Phone

410-887-FOOD (3663)

TTY

711
Image of the Baltimore County Seal
Baltimore County Government
400 Washington Avenue, Towson Maryland 21204(link is external)
BaltCoGo 311 Logo
Download now on:
  •   App Store (link is external)
  •   Google Play (link is external)

Find Information

  • Find a County Service
  • Phone Numbers
  • Report a Problem
  • Directions (link is external)

Policies

  • User Terms
  • Privacy
  • Reasonable Accommodation

Connect With Us

(link is external) (link is external) (link is external)

Translate

English العربية Français 한국어 Русский Español
© Copyright 2025 Baltimore County Government
Back to top