Votre eau est potable, mais un ou plusieurs paramètres méritent une attention particulière.
Valeur proche de la limite réglementaire : Nitrates (80 % de la limite), Nitrates + Nitrites (80 % de la limite). Référence de qualité non respectée : Température. Ces références sont des indicateurs du bon fonctionnement des installations (goût, aspect, corrosion, efficacité du traitement), sans risque direct pour la santé.
Analyse du 14/08/2026 · SIDEN-SIAN NOREADE BEAUVOIS · Réseau 059000642
L'eau du robinet à Séranvillers-Forenville en bref
La dernière analyse de l'eau du robinet à Séranvillers-Forenville, réalisée le 14/08/2026 (distributeur : SIDEN-SIAN NOREADE BEAUVOIS), montre une eau potable, avec toutefois un point de vigilance. Sur les 12 derniers mois analysés (depuis septembre 2025), on compte 2 conformes, 8 avec un point de vigilance et 2 non conformes. La teneur en nitrates est élevée, proche de la limite (40 mg/L pour une limite de 50 mg/L). Parmi les autres paramètres réglementés, le plus proche de sa limite est Nitrates + Nitrites (80 % de la limite). Dans le département Nord (59), 80 % des communes ont une eau conforme aux limites réglementaires lors du dernier contrôle.
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| Bactériologie | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Escherichia coli (n/(100mL)) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Entérocoques (n/(100mL)) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Coliformes (n/(100mL)) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Inorganiques | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Nitrates (mg/L) | 40 | 40,2 | 41,4 | 40,1 | 38,5 | 39,9 | 39 | 40 | 37 | 41 | – | 40 | – | 41 | 41 | – | 39 | 40 | – | 37 | 40 | 41 | – | 40 | 44 | 40 | 41 | – | 39 | 38 | 36 | 34 | – | 31 | 35 | – | 33 | 33 | 33 | 31 | 34 | 31 | 33 | – | 38 | – | 44 | – | 43 | 39 | 41 | – | – | 43 | 40 | 42 | – | 40 | 40 | – | 38 | 42 | 44 | 41 | 39 | 40 |
| Nitrites (mg/L) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | – | 0 | – | 0 | 0 | – | 0 | 0 | – | 0 | 0 | 0 | – | 0 | 0 | 0 | 0 | – | 0 | 0 | 0 | 0 | – | 0 | 0 | – | 0 | 0 | 0 | 0 | 0 | 0 | 0 | – | 0 | – | 0 | – | 0 | 0 | 0 | – | – | 0 | 0 | 0 | – | 0 | 0 | – | 0 | 0 | 0 | 0 | 0 | 0 |
| Nitrates + Nitrites (mg/L) | 0,8 | 0,8 | 0,83 | 0,8 | 0,77 | 0,8 | 0,78 | 0,8 | 0,74 | – | – | 0,8 | – | – | 0,82 | – | – | 0,8 | – | 0,74 | 0,8 | – | – | 0,8 | – | – | 0,82 | – | – | 0,76 | – | 0,68 | – | 0,62 | 0,68 | – | – | – | 0,66 | – | 0,68 | – | 0,66 | – | 0,76 | – | 0,88 | – | – | 0,78 | 0,78 | – | – | – | 0,8 | 0,84 | – | – | – | – | 0,76 | 0,84 | – | 0,82 | 0,78 | – |
| Ammonium (mg/L) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0,05 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| pH (unité pH) | 7,5 | 7,3 | 7,3 | 7,6 | 7,6 | 8 | 7,7 | 7,5 | 7,5 | 7,5 | 7,6 | 7,3 | 7,4 | 7,5 | 7,4 | 7,5 | 7,5 | 7,4 | 7,5 | 7,4 | 7,4 | 7,5 | 7,5 | 7,5 | 7,3 | 7,4 | 7,4 | 7,5 | 7,3 | 7,6 | 7,3 | 7,4 | 7,4 | 7,6 | 7,3 | 7,6 | 7,5 | 7,4 | 7,6 | 7,7 | 7,5 | 7,7 | 7,6 | 7,4 | 7,6 | 7,3 | 7,3 | 7,5 | 7,4 | 7,3 | 7,4 | 7,7 | 7,4 | 7,6 | 7,5 | 7,3 | 7,6 | 7,43 | 7,4 | 7,3 | 7,2 | 7,7 | 7,8 | 7,3 | 7,7 | 7,4 |
| Turbidité (NFU) | 0,13 | 0 | 0,22 | 0 | 0 | 0,21 | 0 | 0,13 | 0,21 | 0,14 | 0,13 | 0 | 0,16 | 0,18 | 0,22 | 0 | 0,13 | 0 | 0,1 | 0,43 | 0,1 | 1,3 | 0 | 1,2 | 0,25 | 0 | 0 | 0,1 | 0 | 0,35 | 0 | 0,39 | 0,23 | 0 | 0 | 0 | 0,11 | 0,17 | 0,13 | 0,19 | 0 | 0,23 | 0,23 | 0 | 0,37 | 0 | 0 | 0 | 0,38 | 1,4 | 0 | 0 | 0 | 0,15 | 0 | 0 | 0 | 0 | 0 | 0,2 | 0,24 | 0,1 | 0,87 | 0,57 | 0,23 | 0,11 |
| Conductivité (µS/cm) | 758 | 760 | 763 | 765 | 800 | 764 | 762 | 769 | 764 | 765 | 758 | 745 | 759 | 759 | 759 | 773 | 759 | 770 | 790 | 773 | 761 | 768 | 756 | 768 | 755 | 755 | 752 | 763 | 759 | 758 | 750 | 749 | 748 | 748 | 763 | 749 | 736 | 782 | 752 | 742 | 727 | 722 | 718 | 724 | 761 | 759 | 761 | 755 | 761 | 760 | 767 | 754 | 757 | 761 | 762 | 765 | 762 | 768 | 769 | 764 | 769 | 765 | 754 | 753 | 769 | 754 |
| Température (°C) | 26 | 24,1 | 19,2 | 13,3 | 13,4 | 12,4 | 8,8 | 8,7 | 12 | 10,2 | 15,6 | 19 | 20,2 | 24,6 | 18,2 | 18,1 | 12,5 | 12,1 | 6,7 | 11,1 | 11,8 | 13,7 | 17,6 | 18,8 | 21 | 21,4 | 16,2 | 19 | 13,1 | 12,5 | 12,7 | 11 | 11,8 | 14,9 | 17,4 | 19,4 | 21,4 | 16,1 | 15,3 | 11,3 | 11,6 | 9,3 | 11,8 | 11,3 | 14,1 | 17,1 | 18,4 | 22,3 | 19,1 | 20,9 | 15,9 | 10,4 | 12,7 | 8 | 11,7 | 10,8 | 10,8 | 14,3 | 17,4 | 20,6 | 18,3 | 13,3 | 10,1 | 11,9 | 7,9 | 7,4 |
| Carbone organique (mg(C)/L) | 0,6 | 0,5 | 0,8 | 0,5 | 0,5 | 0,58 | 0,63 | 0,53 | 0,57 | – | – | 0,57 | – | – | 0,5 | – | – | 0,63 | – | 0,52 | 0,3 | – | – | 0,49 | – | – | 0,46 | – | – | 0,59 | – | 0,42 | – | 0,6 | 0,41 | – | – | – | 0,49 | – | 0,4 | – | 0,7 | – | 0,58 | – | 0,72 | – | – | 0,57 | 0,65 | – | – | – | 0,47 | 0,46 | – | – | – | – | 0,54 | 0,5 | – | 0,6 | 0,5 | – |
| Désinfection | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Chlore résiduel (mg(Cl2)/L) | 0,37 | 0,13 | 0,4 | 0,31 | 0,7 | 0,5 | 0,47 | 0,46 | 0,71 | 0,27 | 0,46 | 0,62 | 0,56 | 0,17 | 0,35 | 0,07 | 0,25 | 0,61 | 0,28 | 0,77 | 0,7 | 0,46 | 0,3 | 0,36 | 0,41 | 0,37 | 0,5 | 0,43 | 0,18 | 0,65 | 0,38 | 0,59 | 0,64 | 0,49 | 0,6 | 0,36 | 0,43 | 0,39 | 0,33 | 0,55 | 0,78 | 0,43 | 0,68 | 0,6 | 0,64 | 0,47 | 0,7 | 0,68 | 0,64 | 0,61 | 0,58 | 0,5 | 0,43 | 0,58 | 0,5 | 0,62 | 0,49 | 0,58 | 0,62 | 0,4 | 0,79 | 0,64 | 0,49 | 0,55 | 0,63 | 0,45 |
| Chlore total (mg(Cl2)/L) | 0,41 | 0,17 | 0,45 | 0,39 | 0,75 | 0,43 | 0,51 | 0,35 | 0,17 | 0,3 | 0,3 | 0,7 | 0,6 | 0,23 | 0,37 | 0,1 | 0,28 | 0,42 | 0,33 | 0,79 | 0,76 | 0,13 | 0,32 | 0,09 | 0,45 | 0,39 | 0,54 | 0,09 | 0,2 | 0,33 | 0,21 | 0,63 | 0,69 | 0,51 | 0,45 | 0,39 | 0,48 | 0,46 | 0,37 | 0,59 | 0,84 | 0,49 | 0,43 | 0,65 | 0,7 | 0,52 | 0,63 | 0,8 | 0,59 | 0,65 | 0,59 | 0,55 | 0,46 | 0,63 | 0,44 | 0,53 | 0,56 | 0,62 | 0,68 | 0,45 | 0,58 | 0,43 | 0,56 | 0,54 | 0,48 | 0,49 |
| Trihalométhanes (µg/L) | – | – | – | 12,45 | 8,01 | 7,18 | – | – | 30 | 12,39 | – | – | – | – | 9,02 | – | 10,04 | – | – | – | 6,26 | 13,7 | – | – | – | – | 6,89 | – | 7,75 | – | – | – | – | – | 6,68 | – | 8,02 | – | 11,3 | – | 9,2 | – | – | – | 6,2 | – | – | – | 11,9 | 4,25 | – | – | – | 7,1 | – | – | – | 8,28 | – | – | 6,7 | – | 10,04 | 6,24 | – | – |
| Acides haloacétiques (µg/L) | – | – | – | 2,6 | – | 2 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Métaux | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Plomb (µg/L) | – | – | – | 0 | – | 0 | – | – | – | 0 | – | – | – | – | – | – | 0 | – | – | – | – | 0 | – | – | – | – | – | – | 4 | – | – | – | – | – | – | – | 0 | – | 0 | – | – | – | – | – | – | – | – | – | 0 | – | – | – | – | 4 | – | – | – | 0 | – | – | – | – | 0 | – | – | – |
| Nickel (µg/L) | – | – | – | 0 | – | 0 | – | – | – | 0 | – | – | – | – | – | – | 0 | – | – | – | – | 0 | – | – | – | – | – | – | 0 | – | – | – | – | – | – | – | 0 | – | 0 | – | – | – | – | – | – | – | – | – | 0 | – | – | – | – | 11 | – | – | – | 0 | – | – | – | – | 0 | – | – | – |
| Cuivre (mg(Cu)/L) | – | – | – | 0 | – | 0,02 | – | – | – | 0,017 | – | – | – | – | – | – | 0,068 | – | – | – | – | 0,084 | – | – | – | – | – | – | 0,805 | – | – | – | – | – | – | – | 0,014 | – | 0,038 | – | – | – | – | – | – | – | – | – | 0,011 | – | – | – | – | 0,135 | – | – | – | 0,012 | – | – | – | – | 0,275 | – | – | – |
| Cadmium (µg/L) | – | – | – | 0 | – | 0 | – | – | – | 0 | – | – | – | – | – | – | 0 | – | – | – | – | 0 | – | – | – | – | – | – | 0 | – | – | – | – | – | – | – | 0 | – | 0 | – | – | – | – | – | – | – | – | – | 0 | – | – | – | – | 0 | – | – | – | 0 | – | – | – | – | 0 | – | – | – |
| Chrome (µg/L) | – | – | – | 0 | – | 0 | – | – | – | 0 | – | – | – | – | – | – | 0 | – | – | – | – | 0 | – | – | – | – | – | – | 0 | – | – | – | – | – | – | – | 0 | – | 0 | – | – | – | – | – | – | – | – | – | 0 | – | – | – | – | 0 | – | – | – | 0 | – | – | – | – | 0 | – | – | – |
| Antimoine (µg/L) | – | – | – | 0 | – | 0 | – | – | – | 0 | – | – | – | – | – | – | 0 | – | – | – | – | 0 | – | – | – | – | – | – | 0 | – | – | – | – | – | – | – | 0 | – | 0 | – | – | – | – | – | – | – | – | – | 0 | – | – | – | – | 0 | – | – | – | 0 | – | – | – | – | 0 | – | – | – |
| Fer (µg/L) | – | – | – | 0 | – | 0 | – | – | 0 | 0 | – | – | – | – | 0 | – | 0 | – | – | – | 0 | 0 | – | – | – | – | 0 | – | 0 | – | – | – | – | – | 0 | – | 0 | – | 0 | – | 0 | – | – | – | 0 | – | – | – | 0 | 0 | – | – | – | 0 | – | – | – | 0 | – | – | 0 | – | 0 | 0 | – | – |
| Pesticides | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Piperonil butoxide (pire individuel) (µg/L) | – | – | 0 | 0,355 | – | 0,292 | – | – | 0,264 | 0 | – | 0 | – | – | 0,166 | – | 0 | 0,047 | 0,057 | 0 | 0,109 | 0,031 | – | 0 | – | – | 0,101 | 0 | 0 | 0 | 0,012 | 0 | – | 0,344 | 0,524 | – | 0 | – | 0 | – | 0,32 | – | 0 | – | 0,455 | – | 0,534 | 0,006 | 0,26 | 0,349 | 0 | – | – | 0 | 0 | – | – | 0 | – | – | 0,044 | 0 | 0 | 0,038 | – | – |
| Glyphosate (µg/L) | – | – | – | 0 | – | 0 | – | – | 0 | – | – | – | – | – | 0 | – | – | – | – | – | 0 | – | – | – | – | – | 0 | – | – | – | 0 | – | – | – | 0 | – | – | – | – | – | 0 | – | – | – | 0 | – | – | – | – | 0 | – | – | – | – | – | – | – | – | – | – | 0 | – | – | 0 | – | – |
| AMPA (µg/L) | – | – | – | 0 | – | 0 | – | – | 0 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Dalapon (µg/L) | – | – | – | 0,029 | – | 0 | – | – | 0,026 | – | – | – | – | – | 0 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Glufosinate (µg/L) | – | – | – | 0 | – | 0 | – | – | 0 | – | – | – | – | – | 0 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Fosetyl (µg/L) | – | – | – | 0 | – | 0 | – | – | 0 | – | – | – | – | – | 0 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Chloridazone desphényl (pire individuel) (µg/L) | – | – | – | – | – | 0,184 | – | – | 0,133 | – | – | – | – | – | 0,067 | – | – | 0,051 | 0,057 | – | 0,036 | – | – | – | – | – | 0,071 | – | – | – | 0,012 | – | – | – | 0,512 | – | – | – | – | – | 0,212 | – | – | – | 0,36 | – | 0,44 | – | – | 0,26 | – | – | – | – | – | – | – | – | – | – | 0,015 | – | – | 0,012 | – | – |
| HAP | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Benzo(a)pyrène (µg/L) | – | – | – | 0 | – | 0 | – | – | – | 0 | – | – | – | – | – | – | 0 | – | – | – | – | 0 | – | – | – | – | – | – | 0 | – | – | – | – | – | – | – | 0 | – | 0 | – | – | – | – | – | – | – | 0 | 0 | 0 | – | – | – | – | 0 | – | – | – | 0 | – | – | – | – | 0 | – | – | – |
| HAP (4 subst.) (µg/L) | – | – | – | 0 | – | 0 | – | – | – | 0 | – | – | – | – | – | – | 0 | – | – | – | – | 0 | – | – | – | – | – | – | 0 | – | – | – | – | – | – | – | 0 | – | 0 | – | – | – | – | – | – | – | 0 | 0 | 0 | – | – | – | – | 0 | – | – | – | 0 | – | – | – | – | 0 | – | – | – |