Schedule 1398

  ---------------------- -------- ------- -------- -------- -------- --------- -------- -------- --------
  Analyte Name           Test ID  Lab     LTMDL by LTMDL in Std Dev  Change    LCL      UCL      LRL
                                  Code    Spk Std  use               To:                         
                                          Dev                                                    

  ALDRIN, TOTAL(WATER)   39330B   11398   0.0005   0.0005   0.0002             0.0004   0.0007   

  LINDANE, TOT.(WATER)   39340B   11398   0.0004   0.001    0.0002   0.00042   0.0003   0.0006   0.0008

  DDD, TOTAL. (WATER)    39360B   11398   0.0005   0.0012   0.0002   0.00050   0.0004   0.0007   0.0010

  DDE, TOTAL. (WATER)    39365B   11398   0.0005   0.0009   0.0002   0.00048   0.0004   0.0007   0.0010

  DDT, TOT. (WATER)      39370B   11398   0.0007   0.0009   0.0003             0.0005   0.0010   

  DIELDRIN,TOT.(WATER)   39380B   11398   0.0005   0.0005   0.0002             0.0004   0.0007   

  ENDOSULFAN, TOT.       39388B   11398   0.0013   0.0006   0.0005   0.00125   0.001    0.0018   0.0025

  ENDRIN, TOT. (WATER)   39390B   11398   0.0007   0.0009   0.0003             0.0005   0.0010   

  HEPTACHLOR T (WATER)   39410B   11398   0.0008   0.0004   0.0003   0.00075   0.0006   0.0011   0.0015

  HEPT EPOX, TO(WATER)   39420B   11398   0.0005   0.0006   0.0002             0.0004   0.0007   

  METHOXYCHLOR T.(WAT)   39480B   11398   0.0008   0.0014   0.0003   0.00083   0.0006   0.0012   0.0017

  MIREX, TOT.            39755B   11398   0.0008   0.0006   0.0003   0.00078   0.0006   0.0011   0.0016
  ---------------------- -------- ------- -------- -------- -------- --------- -------- -------- --------

Notes:

Aldrin recovery was calculated in WY05 using the expected value as it
should be.

Historical LTMDLs

  -------------------- -------- --------------------------------------------------------------------------------- ---------- ---------- -------- -------- ------------- -----------
  **Constituent Name** **Test   **Lab Code**                                                                      **Start    **End      **LRL    **Long   **Reporting   **Units**
                       ID**                                                                                       Date**     Date**     MRL      Term     Level**       
                                                                                                                                        Code**   MDL**                  

  Aldrin               39330B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001              lrl      0.0005   0.0010        ug/L

  Aldrin               39330B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20021001   20030930   lrl      0.0010   0.0019        ug/L

  Aldrin               39330B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20020930   lrl      0.0006   0.0011        ug/L

  Aldrin               39330B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20001001   20010514   lrl      0.0006   0.0011        ug/L

  Aldrin               39330B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000930   mrl      N/A      0000.001      ug/L

  Chlordane, technical 39350B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001              mrl      N/A      0.1           ug/L
  mix                                                                                                                                                                   

  Chlordane, technical 39350B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20030930   mrl      N/A      0000.100      ug/L
  mix                                                                                                                                                                   

  Chlordane, technical 39350B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20010514   mrl      N/A      0000.100      ug/L
  mix                                                                                                                                                                   

  Dieldrin             39380B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20041001              lrl      0.0005   0.0010        ug/L

  Dieldrin             39380B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001   20040930   lrl      0.0010   0.0020        ug/L

  Dieldrin             39380B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20021001   20030930   lrl      0.0010   0.0020        ug/L

  Dieldrin             39380B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20020930   lrl      0.0006   0.0011        ug/L

  Dieldrin             39380B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20001001   20010514   lrl      0.0006   0.0011        ug/L

  Dieldrin             39380B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000930   mrl      N/A      0000.001      ug/L

  Endrin               39390B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001              lrl      0.0009   0.0019        ug/L

  Endrin               39390B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20030930   lrl      0.0009   0.0019        ug/L

  Endrin               39390B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20001001   20010514   lrl      0.0009   0.0019        ug/L

  Endrin               39390B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000930   mrl      N/A      0000.001      ug/L

  Heptachlor           39410B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001              lrl      0.0004   0.0008        ug/L

  Heptachlor           39410B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20030930   lrl      0.0007   0.0015        ug/L

  Heptachlor           39410B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20001001   20010514   lrl      0.0007   0.0015        ug/L

  Heptachlor           39410B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000930   mrl      N/A      0000.001      ug/L

  Heptachlor epoxide   39420B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001              lrl      0.0006   0.0012        ug/L

  Heptachlor epoxide   39420B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20021001   20030930   lrl      0.0013   0.0026        ug/L

  Heptachlor epoxide   39420B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20020930   lrl      0.0006   0.0011        ug/L

  Heptachlor epoxide   39420B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20001001   20010514   lrl      0.0006   0.0011        ug/L

  Heptachlor epoxide   39420B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000930   mrl      N/A      0000.001      ug/L

  Lindane              39340B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001              lrl      0.0010   0.0020        ug/L

  Lindane              39340B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20021001   20030930   lrl      0.0010   0.0020        ug/L

  Lindane              39340B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20020930   lrl      0.0004   0.0007        ug/L

  Lindane              39340B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20001001   20010514   lrl      0.0004   0.0007        ug/L

  Lindane              39340B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000930   mrl      N/A      0000.001      ug/L

  Mirex                39755B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001              lrl      0.0006   0.0011        ug/L

  Mirex                39755B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20021001   20030930   lrl      0.0012   0.0024        ug/L

  Mirex                39755B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20020930   lrl      0.0006   0.0011        ug/L

  Mirex                39755B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20001001   20010514   lrl      0.0006   0.0011        ug/L

  Mirex                39755B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000930   mrl      N/A      0000.010      ug/L

  Perthane             39034A   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000711   mrl      N/A      0000.100      ug/L

  Polychlorinated      39516B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001              mrl      N/A      0.1           ug/L
  biphenyls, total                                                                                                                                                      

  Polychlorinated      39516B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20030930   mrl      N/A      0000.100      ug/L
  biphenyls, total                                                                                                                                                      

  Polychlorinated      39516B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20010514   mrl      N/A      0000.100      ug/L
  biphenyls, total                                                                                                                                                      

  Polychlorinated      39250B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000711   mrl      N/A      0000.100      ug/L
  naphthalenes                                                                                                                                                          

  Toxaphene            39400B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001              mrl      N/A      1             ug/L

  Toxaphene            39400B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20030930   mrl      N/A      0001.000      ug/L

  Toxaphene            39400B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20010514   mrl      N/A      0001.000      ug/L

  alpha-Endosulfan     39388B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20041001              lrl      0.0006   0.0012        ug/L

  alpha-Endosulfan     39388B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001   20040930   lrl      0.0011   0.0021        ug/L

  alpha-Endosulfan     39388B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20021001   20030930   lrl      0.0011   0.0021        ug/L

  alpha-Endosulfan     39388B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20020930   lrl      0.0007   0.0015        ug/L

  alpha-Endosulfan     39388B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20001001   20010514   lrl      0.0007   0.0015        ug/L

  alpha-Endosulfan     39388B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000930   mrl      N/A      0000.001      ug/L

  p,p\'-DDD            39360B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001              lrl      0.0012   0.0024        ug/L

  p,p\'-DDD            39360B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20021001   20030930   lrl      0.0012   0.0024        ug/L

  p,p\'-DDD            39360B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20020930   lrl      0.0007   0.0015        ug/L

  p,p\'-DDD            39360B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20001001   20010514   lrl      0.0007   0.0015        ug/L

  p,p\'-DDD            39360B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000930   mrl      N/A      0000.001      ug/L

  p,p\'-DDE            39365B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001              lrl      0.0009   0.0019        ug/L

  p,p\'-DDE            39365B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20021001   20030930   lrl      0.0009   0.0019        ug/L

  p,p\'-DDE            39365B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20020930   lrl      0.0006   0.0011        ug/L

  p,p\'-DDE            39365B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20001001   20010514   lrl      0.0006   0.0011        ug/L

  p,p\'-DDE            39365B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000930   mrl      N/A      0000.001      ug/L

  p,p\'-DDT            39370B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001              lrl      0.0009   0.0019        ug/L

  p,p\'-DDT            39370B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20030930   lrl      0.0009   0.0019        ug/L

  p,p\'-DDT            39370B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20001001   20010514   lrl      0.0009   0.0019        ug/L

  p,p\'-DDT            39370B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000930   mrl      N/A      0000.001      ug/L

  p,p\'-Methoxychlor   39480B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20031001              lrl      0.0014   0.0028        ug/L

  p,p\'-Methoxychlor   39480B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20021001   20030930   lrl      0.0014   0.0028        ug/L

  p,p\'-Methoxychlor   39480B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20010515   20020930   lrl      0.0009   0.0019        ug/L

  p,p\'-Methoxychlor   39480B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   20001001   20010514   lrl      0.0009   0.0019        ug/L

  p,p\'-Methoxychlor   39480B   [**11398**](http://nwql.cr.usgs.gov/usgs/catalog/index.cfm?a=bs&sa=l&sap=11398)   19941013   20000930   mrl      N/A      0000.010      ug/L
  -------------------- -------- --------------------------------------------------------------------------------- ---------- ---------- -------- -------- ------------- -----------

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