EWG Tap Water Database 2009

	This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is	0 days
Test Days Exceeding Legal LimitsNumber of days in which the samples taken in that day exceed the Maximum Contaminant Level (Depending on the contaminant and its MCL, that may or may not trigger an MCL violation. Some MCLs are based on averages spanning several months to a year)	0 days
Test DaysNumber of days in which this chemical has reported results in the data we received from the State	262 days
Tests ConductedNumber of individual tests done for this contaminant	289 tests

This Drinking Water System

Test Days Exceeding Health GuidelinesDefinition of what this is

0 days

Test Days Exceeding Legal LimitsNumber of days in which the samples taken in that day exceed the Maximum Contaminant Level (Depending on the contaminant and its MCL, that may or may not trigger an MCL violation. Some MCLs are based on averages spanning several months to a year)

0 days

Test DaysNumber of days in which this chemical has reported results in the data we received from the State

262 days

Tests ConductedNumber of individual tests done for this contaminant

289 tests

Contaminant	Average/ Maximum Result	Health Limit Exceeded	Legal Limit Exceeded	Testing History -Tested -Detected -Over Health Guidelines -Over Legal Limit*
Combined Uranium (pCi/L)Uranium is a radioactive element commonly found in most rocks; processed ore is used for power generation and weapons manufacture.	8.7 pCi/L 18 pCi/L	No	No 15 pCi/L
NOTE: Each dot in the above graph represents one month. * Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

Contaminant

Average/
Maximum
Result

Health Limit
Exceeded

Legal Limit
Exceeded

Testing History

-Tested

-Detected

-Over Health Guidelines

-Over Legal Limit*

Combined Uranium (pCi/L)Uranium is a radioactive element commonly found in most rocks; processed ore is used for power generation and weapons manufacture.

8.7 pCi/L
18 pCi/L

No
15 pCi/L

NOTE: Each dot in the above graph represents one month.
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

Standard

Description

Level

Maximum Contaminant Limit (MCL)

The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.

15 pCi/L

Testing Date

Average
Result

Samples taken that day

Number of Non-Detects

Range of Results

2009-07-28

9.4 pCi/L

2009-07-22

10 pCi/L

2009-07-14

8 pCi/L

2009-07-07

8.7 pCi/L

2009-06-30

10 pCi/L

2009-06-16

11 pCi/L

2009-06-09

12 pCi/L

2009-06-02

8.7 pCi/L

2009-05-19

10 pCi/L

2009-04-14

9.4 pCi/L

2009-04-02

8 pCi/L

2009-03-03

11 pCi/L

2009-02-24

17 pCi/L

2009-02-17

17 pCi/L

2009-02-10

17 pCi/L

2009-02-03

18 pCi/L

2008-12-30

12 pCi/L

2008-12-16

11 pCi/L

2008-12-09

11 pCi/L

2008-11-26

14 pCi/L

2008-11-18

11 pCi/L

2008-11-12

10 pCi/L

2008-11-04

13 pCi/L

2008-10-28

12 pCi/L

2008-10-22

11 pCi/L

2008-10-14

12 pCi/L

2008-10-07

12 pCi/L

2008-09-30

12 pCi/L

2008-09-23

11 pCi/L

2008-09-16

10 pCi/L

2008-09-09

11 pCi/L

2008-09-02

13 pCi/L

2008-08-26

10 pCi/L

2008-08-19

10 pCi/L

2008-08-12

11 pCi/L

2008-07-29

12 pCi/L

2008-07-22

12 pCi/L

2008-07-15

12 pCi/L

2008-07-08

13 pCi/L

2008-07-01

11 pCi/L

2008-06-24

13 pCi/L

2008-06-17

12 pCi/L

2008-06-10

13 pCi/L

2008-06-03

14 pCi/L

2008-05-27

13 pCi/L

2008-05-20

15 pCi/L

2008-05-13

10 pCi/L

2008-05-06

11 pCi/L

2008-04-29

8 pCi/L

2008-04-22

9.4 pCi/L

2008-04-15

8.7 pCi/L

2008-04-08

10 pCi/L

2008-04-01

11 pCi/L

2008-03-25

11 pCi/L

2008-03-18

10 pCi/L

2008-03-11

11 pCi/L

2008-03-04

8.7 pCi/L

2008-02-26

8.7 pCi/L

2008-02-19

10 pCi/L

2008-02-12

9.4 pCi/L

2008-02-05

10 pCi/L

2008-01-29

10 pCi/L

2008-01-22

9.4 pCi/L

2008-01-15

8.7 pCi/L

2008-01-08

13 pCi/L

2008-01-02

11 pCi/L

2007-12-26

12 pCi/L

2007-12-18

11 pCi/L

2007-11-06

7.4 pCi/L

2007-10-30

9.4 pCi/L

2007-10-23

10 pCi/L

2007-10-16

8 pCi/L

2007-10-09

10 pCi/L

2007-10-02

8.7 pCi/L

2007-09-25

8 pCi/L

2007-09-18

8.7 pCi/L

2007-09-11

9.4 pCi/L

2007-09-04

9.4 pCi/L

2007-08-28

9.4 pCi/L

2007-08-21

9.4 pCi/L

2007-08-14

9.4 pCi/L

2007-08-07

7.4 pCi/L

2007-07-31

9.4 pCi/L

2007-07-24

11 pCi/L

2007-07-17

11 pCi/L

2007-07-10

11 pCi/L

2007-07-03

11 pCi/L

2007-06-26

11 pCi/L

2007-06-19

11 pCi/L

2007-06-12

9.4 pCi/L

2007-06-05

11 pCi/L

2007-05-29

9.4 pCi/L

2007-05-22

9.4 pCi/L

2007-05-15

9.4 pCi/L

2007-05-08

8.7 pCi/L

2007-05-01

8 pCi/L

2007-04-24

7.4 pCi/L

2007-04-17

6 pCi/L

2007-04-10

3.9 pCi/L

2007-04-03

4.9 pCi/L

2007-03-27

5.3 pCi/L

2007-03-20

6 pCi/L

2007-03-13

5.9 pCi/L

2007-03-06

5.6 pCi/L

2007-02-27

5.4 pCi/L

2007-02-20

7.4 pCi/L

2007-02-13

6.7 pCi/L

2007-02-06

8 pCi/L

2007-01-30

7.4 pCi/L

2007-01-23

5.5 pCi/L

2007-01-16

10 pCi/L

2007-01-09

8.7 pCi/L

2007-01-02

8 pCi/L

2006-12-26

8.7 pCi/L

2006-12-19

10 pCi/L

2006-12-12

9.4 pCi/L

2006-12-05

8 pCi/L

2006-11-28

8.7 pCi/L

2006-11-21

8.7 pCi/L

2006-11-14

8 pCi/L

2006-11-07

8 pCi/L

2006-10-31

8.7 pCi/L

2006-10-24

8.7 pCi/L

2006-10-17

6.7 pCi/L

2006-10-10

8.7 pCi/L

2006-10-03

8.7 pCi/L

2006-09-26

9.4 pCi/L

2006-09-19

10 pCi/L

2006-09-12

9.4 pCi/L

2006-09-05

11 pCi/L

2006-08-29

9.4 pCi/L

2006-08-22

8.7 pCi/L

2006-08-15

8 pCi/L

2006-08-08

9.4 pCi/L

2006-08-01

8.7 pCi/L

2006-07-25

8 pCi/L

2006-07-18

5.9 pCi/L

2006-07-13

6.7 pCi/L

2006-07-11

8 pCi/L

2006-07-04

7.4 pCi/L

2006-06-27

8 pCi/L

2006-06-20

8 pCi/L

2006-06-13

7.4 pCi/L

2006-06-06

6.7 pCi/L

2006-05-30

6 pCi/L

2006-05-24

5.1 pCi/L

2006-05-23

5.5 pCi/L

2006-05-16

6.4 pCi/L

2006-05-09

6.7 pCi/L

2006-05-02

8 pCi/L

2006-04-25

7.4 pCi/L

2006-04-18

8 pCi/L

2006-04-11

6.7 pCi/L

2006-04-04

11 pCi/L

2006-03-28

9.4 pCi/L

2006-03-21

9.4 pCi/L

2006-03-14

9.4 pCi/L

2006-03-07

11 pCi/L

2006-02-28

8 pCi/L

2006-02-21

9.4 pCi/L

2006-02-14

9.4 pCi/L

2006-02-07

8.7 pCi/L

2006-01-31

8.7 pCi/L

2006-01-24

9.4 pCi/L

2006-01-17

8.7 pCi/L

2006-01-10

8.7 pCi/L

2006-01-03

11 pCi/L

2005-12-27

10.7 pCi/L

2005-12-20

11.4 pCi/L

2005-12-13

8.71 pCi/L

2005-12-06

8.71 pCi/L

2005-11-29

9.38 pCi/L

2005-11-22

8.04 pCi/L

2005-11-15

8.04 pCi/L

2005-11-08

8.71 pCi/L

2005-11-01

7.37 pCi/L

2005-10-25

7.37 pCi/L

2005-10-18

7.37 pCi/L

2005-10-11

8.04 pCi/L

2005-10-04

8.04 pCi/L

2005-09-27

8.04 pCi/L

2005-09-20

7.37 pCi/L

2005-09-13

7.37 pCi/L

2005-09-06

7.37 pCi/L

2005-08-30

6.5 pCi/L

2005-08-23

8.04 pCi/L

2005-08-16

7.37 pCi/L

2005-08-09

7.37 pCi/L

2005-08-02

6.7 pCi/L

2005-07-26

7.37 pCi/L

2005-07-19

6.7 pCi/L

2005-07-12

8.04 pCi/L

2005-07-05

8.71 pCi/L

2005-06-28

6.7 pCi/L

2005-06-21

6.7 pCi/L

2005-06-14

7.37 pCi/L

2005-06-07

8.71 pCi/L

2005-05-31

5.63 pCi/L

2005-05-24

5.36 pCi/L

2005-05-17

10 pCi/L

2005-05-10

10.7 pCi/L

2005-05-03

10.7 pCi/L

2005-04-26

9.38 pCi/L

2005-04-19

9.38 pCi/L

2005-04-12

11.4 pCi/L

2005-04-05

9.38 pCi/L

2005-03-29

10 pCi/L

2005-03-22

6.7 pCi/L

2005-03-15

6.63 pCi/L

2005-03-08

8.04 pCi/L

2005-03-01

8.71 pCi/L

2005-02-22

9.38 pCi/L

2005-02-15

8.71 pCi/L

2005-02-08

7.37 pCi/L

2005-02-01

6.7 pCi/L

2005-01-25

6.63 pCi/L

2005-01-18

8.04 pCi/L

2005-01-11

8.04 pCi/L

2005-01-04

7.37 pCi/L

2004-12-28

7.37 pCi/L

2004-12-21

6.7 pCi/L

2004-12-14

7.37 pCi/L

2004-12-07

7.37 pCi/L

2004-11-30

5.7 pCi/L

2004-11-23

4.89 pCi/L

2004-11-16

7.37 pCi/L

2004-11-09

10.7 pCi/L

2004-11-02

10.7 pCi/L

2004-10-26

11.4 pCi/L

2004-10-19

10 pCi/L

2004-10-12

8.71 pCi/L

2004-10-05

8.04 pCi/L

2004-09-28

9.38 pCi/L

2004-09-21

8.71 pCi/L

2004-09-14

9.38 pCi/L

2004-09-07

9.38 pCi/L

2004-06-29

5.25 pCi/L

1.6 to 8.9 pCi/L

2004-06-22

3.95 pCi/L

1.37 to 6.53 pCi/L

2004-06-15

5.71 pCi/L

1.56 to 9.86 pCi/L

2004-06-09

5.29 pCi/L

1.69 to 8.88 pCi/L

2004-06-01

2.83 pCi/L

1.19 to 4.47 pCi/L

2004-05-25

3.83 pCi/L

1.19 to 6.47 pCi/L

2004-05-18

3.83 pCi/L

1.25 to 6.41 pCi/L

2004-05-11

4.43 pCi/L

1.3 to 7.55 pCi/L

2004-05-04

5.2 pCi/L

1.53 to 8.87 pCi/L

2004-04-27

5.29 pCi/L

1.41 to 9.16 pCi/L

2004-04-20

5.96 pCi/L

1.52 to 10.4 pCi/L

2004-04-13

4.85 pCi/L

1.48 to 8.22 pCi/L

2004-04-06

7.21 pCi/L

1.82 to 12.6 pCi/L

2004-03-30

4.33 pCi/L

1.35 to 7.31 pCi/L

2004-03-23

4.4 pCi/L

1.44 to 7.36 pCi/L

2004-03-16

3.57 pCi/L

1.27 to 5.87 pCi/L

2004-03-09

3.97 pCi/L

1.19 to 6.75 pCi/L

2004-03-02

5.65 pCi/L

1.67 to 9.62 pCi/L

2004-02-24

4.18 pCi/L

1.31 to 7.04 pCi/L

2004-02-17

3.97 pCi/L

1.17 to 6.77 pCi/L

2004-02-10

3.94 pCi/L

1.28 to 6.59 pCi/L

2004-02-03

5.1 pCi/L

1.48 to 8.72 pCi/L

2004-01-27

4.32 pCi/L

1.34 to 7.29 pCi/L

2004-01-20

3.29 pCi/L

1.22 to 5.35 pCi/L

2004-01-13

3.94 pCi/L

1.28 to 6.6 pCi/L

2004-01-06

3.57 pCi/L

1.28 to 5.85 pCi/L

National Drinking Water Database

City of Riverside Public Utilities Utilities - Riverside, CA

Combined Uranium (pCi/L)

Testing Summary

Testing History

Health Based and Legal Limits for Combined Uranium (pCi/L)

Health Based Limits for Combined Uranium (pCi/L)

Testing Results

Health/Toxics

Farming

Natural Resources

Energy Choices