Chemical and radiological sample results

MS0790003 ·, Town of Centreville

What has been detected, ever

Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.

Scroll the table sideways for the dates.

No date range is applied: this list draws on every sample on record. Show the last two years only.

The most recent samples, result by result

The table below lists 151–160 of 243 samples, newest first — collected June 28, 2010 to November 29, 2010. The summary above covers all 243.

48 results from the 10 samples listed here: 11 detected, 37 not detected. Across the whole record it is 301 of 1,021. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

• Collected

  Nov 29, 2010

  Sampling point

  TF080 Treatment Plant T080

  Sample type

  Routine

  Lab sample

  101130-002VO

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2005 – Dec 31, 2010

  • 1,2,4-Trichlorobenzene 2378 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • Cis-1,2-Dichloroethylene 2380 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • Xylenes, Total 2955 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • Dichloromethane 2964 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • O-Dichlorobenzene 2968 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • P-Dichlorobenzene 2969 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • Vinyl Chloride 2976 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • 1,1-Dichloroethylene 2977 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • Trans-1,2-Dichloroethylene 2979 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • 1,2-Dichloroethane 2980 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • 1,1,1-Trichloroethane 2981 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • Carbon Tetrachloride 2982 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • 1,2-Dichloropropane 2983 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • Trichloroethylene 2984 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • 1,1,2-Trichloroethane 2985 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • Tetrachloroethylene 2987 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • Chlorobenzene 2989 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • Benzene 2990 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • Toluene 2991 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • Ethylbenzene 2992 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

  • Styrene 2996 EPA method 524.2

    Result

    Not detected below 0.0005 mg/l Method Detection Limit

• Collected

  Sep 27, 2010

  Sampling point

  TF080 Treatment Plant T080

  Sample type

  Routine

  Lab sample

  100928-099NI

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2010 – Dec 31, 2010

  • Nitrate-Nitrite 1038 EPA method 353.2

    Result

    Not detected below 0.25 mg/l Minimum Reporting Level

  • Nitrate 1040 EPA method 353.2

    Result

    Not detected below 0.2 mg/l Minimum Reporting Level

  • Nitrite 1041 EPA method 353.2

    Result

    Not detected below 0.05 mg/l Minimum Reporting Level

• Collected

  Sep 27, 2010

  Sampling point

  TF081 Treatment Plant T081

  Sample type

  Routine

  Lab sample

  100928-098NI

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2010 – Dec 31, 2010

  • Nitrate-Nitrite 1038 EPA method 353.2

    Result

    1.56 mg/l

  • Nitrate 1040 EPA method 353.2

    Result

    1.56 mg/l

  • Nitrite 1041 EPA method 353.2

    Result

    Not detected below 0.05 mg/l Minimum Reporting Level

• Collected

  Aug 2, 2010

  Sampling point

  MRT000 Max. Res. Time

  Sample type

  Routine

  Lab sample

  100803-008HA

  Laboratory

  MSDH Lab

  • Monochloroacetic Acid 2450 EPA method 552.2

    Result

    Not detected below 0.002 mg/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dichloroacetic Acid 2451 EPA method 552.2

    Result

    Not detected below 0.001 mg/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Trichloroacetic Acid 2452 EPA method 552.2

    Result

    Not detected below 0.001 mg/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Monobromoacetic Acid 2453 EPA method 552.2

    Result

    Not detected below 0.001 mg/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dibromoacetic Acid 2454 EPA method 552.2

    Result

    Not detected below 0.001 mg/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Total Haloacetic Acids (Haa5) 2456

    Result

    0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.

    Monitoring period

    Jan 1, 2008 – Dec 31, 2010

• Collected

  Aug 2, 2010

  Sampling point

  MRT000 Max. Res. Time

  Sample type

  Routine

  Lab sample

  100803-008TH

  Laboratory

  MSDH Lab

  • Chloroform 2941 EPA method 524.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Bromoform 2942 EPA method 524.2

    Result

    2.6 ug/l

    Monitoring period

    Not recorded

  • Bromodichloromethane 2943 EPA method 524.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    2.02 ug/l

    Monitoring period

    Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    4.62 ug/l

    Monitoring period

    Jan 1, 2008 – Dec 31, 2010

• Collected

  Jun 28, 2010

  Sampling point

  DS000 Distribution

  Sample type

  Routine

  Lab sample

  100629-012PB

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2008 – Dec 31, 2010

  • Copper, Free 1022 EPA method 200.8

    Result

    0.0019 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

• Collected

  Jun 28, 2010

  Sampling point

  DS000 Distribution

  Sample type

  Routine

  Lab sample

  100629-011PB

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2008 – Dec 31, 2010

  • Copper, Free 1022 EPA method 200.8

    Result

    0.0046 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

• Collected

  Jun 28, 2010

  Sampling point

  DS000 Distribution

  Sample type

  Routine

  Lab sample

  100629-010PB

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2008 – Dec 31, 2010

  • Copper, Free 1022 EPA method 200.8

    Result

    0.0013 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

• Collected

  Jun 28, 2010

  Sampling point

  DS000 Distribution

  Sample type

  Routine

  Lab sample

  100629-009PB

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2008 – Dec 31, 2010

  • Copper, Free 1022 EPA method 200.8

    Result

    0.0006 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

• Collected

  Jun 28, 2010

  Sampling point

  DS000 Distribution

  Sample type

  Routine

  Lab sample

  100629-008PB

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2008 – Dec 31, 2010

  • Copper, Free 1022 EPA method 200.8

    Result

    0.0033 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

Routine (10).