Van Meter has a water(sqmi) of 0 and a longitude larger than -98.444062, what was their highest ANSI code?
CREATE TABLE "v" (
  "township" text,
  "county" text,
  "pop_2010" real,
  "land_sqmi" real,
  "water_sqmi" real,
  "latitude" real,
  "longitude" real,
  "geo_id" real,
  "ansi_code" real
);
SELECT MAX("ansi_code") FROM "v" WHERE "water_sqmi"=0 AND "township"='van meter' AND "longitude">-98.444062;