Only Severn Trent and Wessex Water achieved the highest level of performance, with 4 star ratings from the EA. In 2019, there were 52 category 1 events  the most serious  compared with 56 in 2018, and 48 serious pollution incidents took place at sewerage facilities, more than half of which were from Anglian and Thames Water assets. The EA has been investigating Southern Water over serious failures in the operation of its sewage treatment sites. Southern Water was responsible for 458 pollution incidents, nearly double its 2018 total. The EA performance assessment published on Friday revealed there were 2,204 pollution events last year  the highest number since 2014  marking the worst record for environmental pollution from the water industry for five years.
only evers and water achieved the highest level of performance, with 4 star ratings from the escapist.
( z0 achieve :ARG0 ( z1 and :mod ( z2 only ) :op ( z3 company :name ( z4 name :op "eBay" ) ) :op ( z5 water ) ) :ARG1 ( z6 level :ARG1-of ( z7 have-degree :ARG2 ( z8 high :ARG1 z6 ) :ARG3 ( z9 most ) ) :mod ( z10 perform :ARG0 z1 :ARG1-of ( z11 rate :ARG0 ( z12 escapist ) :ARG2 ( z13 star :quant 4 ) ) ) ) )
(z0 / achieve-01
    :ARG0 (z1 / and
              :mod (z2 / only)
              :op1 (z3 / company
                       :name (z4 / name
                                 :op1 "eBay"))
              :op2 (z5 / water))
    :ARG1 (z6 / level
              :ARG1-of (z7 / have-degree-91
                           :ARG2 (z8 / high-02
                                     :ARG1 z6)
                           :ARG3 (z9 / most))
              :mod (z10 / perform-02
                        :ARG0 z1
                        :ARG1-of (z11 / rate-01
                                      :ARG0 (z12 / escapist)
                                      :ARG2 (z13 / star
                                                 :quant 4)))))
only evers and water achieved the highest level of performance , with 4 star ratings from the escapist .
z3 :name z4
z4 :op1 1
z1 :op1 z3
z1 :mod z2
z1 :op2 z5
z0 :ARG0 z1
z7 :ARG2 z8
z7 :ARG3 z9
z8 :ARG1 z6
z6 :ARG1-of z7
z0 :ARG1 z6
z6 :mod z10
z10 :ARG0 z1
z13 :quant 0
z11 :ARG2 z13
z10 :ARG1-of z11
z11 :ARG0 z12