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Lake Wales Ridge Groundwater: Target analytes and laboratory methods

Table 5.—Analytes, and reporting limits, included in reconnaissance sampling focused on simazine degradates in July 2003. Five wells were sampled and analyses were performed by the USGS Organic Chemistry Research Laboratory using USGS Method Number 0-2138-02 (Lee and others, 2002). Names recommended by the International Union of Pure and Applied Chemistry (IUPAC) are shown in bold.

Triazines (0.025 µg/L reporting limit)

  • Atrazine
  • Cyanazine
  • Propazine
  • Simazine
    • Deethylatrazine (DEA) or 2-chloro-4-isopropylamino-6-amino-s-triazine: CIAT
    • Deisopropylatrazine (DIA) or 2-chloro-6-ethylamino-4-amino-s-triazine: CEAT
    • Hydroxyatrazine (HA) or 2-hydroxy-4-isopropylamino-6-ethylamino-s-triazine: OIET
    • Hydroxysimazine (HS)
    • Deethylhydroxyatrazine (DHEA) or 2-hydroxy-4-isopropylamino-6-amino-s-triazine: OIAT
    • Deisopropylhydroxyatrazine (DIHA) or 2-hydroxy-6-ethylamino-4-amino-s-triazine: OEAT
    • Deethyldeisopropylatrazine/Didealkyatrazine (DDA) or Chlordiamino-s-triazine: CAAT
    • Cyanazine acid (CAC)
    • Cyanazine amide (CAM)
    • Deethycyanazine (DEC) (0.20  µg/L reporting limit)
    • Deethycyanazine acid (DCAC)
    • Deethycyanazine amide (DCAM)

Phenylureas (0.20 µg/L reporting limit)

  • Diuron
  • Fluometuron
    • DMFM (demethylfluometuron)
  • Linuron

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