This reflective report analyses New York City’s drinking water quality and the treatment process. The paper identifies the contaminants in New York City water and analyzes these contaminants through a broad spectrum approach. The New York City Water Report The fluoride contaminant violated the maximum requirement level in the New York drinking water. The fluoride content of 2.2 mg/L in this water is almost double the concentration level of 1.0mg/L as situated by the New York City Health Code. The calcium contaminant was very close to violating the maximum contaminant levels in the New York City drinking water. The concentration of calcium contaminant was recorded at 5.3 mg/L against an average of between 4.4 and 6.7 mg/L. Contaminant detected: Nitrate Name of the Contaminant  MCL       Physical properties                Sources of contamination             Health effects                                                                                                                   Treatment methods                                                                                                                                              Molecular formula is NO 3 −.       Overspill from used fertilizer.                                                                                                                                                                                                                                                                   Nitrate                  0.12mg/L  The weight is 62.0049 g/molecule.  Leakage from water treatment tanks.  Toxicosis: may lead to methemoglobinemia (blue baby) condition characterized by lack of enough oxygen in the vital body organs.  Oxidation of excess nitrate is necessary in water treatment.                                                                                                   It is soluble in water.            Sewage runoff.                       May lead to death of animals when the concentration in drinking water over 70%.                                                  The oxidizing agent that can be used is the ozone. The ozone will oxidize all the nitrites in into the less toxic nitrates.                                                                       Natural erosion from deposits.                                                                                                                                                                                                                                                                     Water Treatment Plant Configuration Water in its natural source is often subject to fecal contamination, primarily derived from processes of decomposition of organic nitrogenous material present in water. While ammonia (ammonium) and nitrites indicate an organic contamination, there are several harmless contaminants present in water such iron and calcium among others. The diagram below represents a typical water treatment plant summarizing the processes involved in water treatment. Schematic water treatment diagram Steps involved in the water treatment Step 1: Screening The raw water is passed through a sieving screen to eliminate relatively large pieces of foreign material such as rocks, leaves, and sticks. At this stage, Po